Merge branch 'release/0.15.0'

2020-01-26 18:15:12 +01:00 · 2020-01-26 18:15:12 +01:00 · 4ab47fef46
commit 4ab47fef46
parent afaf6c0e56 8e17b1d72a
109 changed files with 4601 additions and 224 deletions
--- a/.travis.yml
+++ b/.travis.yml
@ -14,7 +14,7 @@ cache:
 branches:
  only:
    - develop
-    - 0.14.2
+    - 0.15.0

 android:
 licenses:
--- a/app/build.gradle
+++ b/app/build.gradle
@ -17,8 +17,8 @@ android {
        testApplicationId "io.github.tests.wulkanowy"
        minSdkVersion 16
        targetSdkVersion 29
-        versionCode 51
-        versionName "0.14.2"
+        versionCode 52
+        versionName "0.15.0"
        multiDexEnabled true
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
        vectorDrawables.useSupportLibrary = true
@ -110,7 +110,7 @@ play {
 }

 ext {
-    work_manager = "2.3.0-rc01"
+    work_manager = "2.3.0"
    room = "2.2.3"
    dagger = "2.25.4"
    chucker = "2.0.4"
@ -122,14 +122,14 @@ configurations.all {
 }

 dependencies {
-    implementation "io.github.wulkanowy:sdk:0.14.2"
+    implementation "io.github.wulkanowy:sdk:0.15.0"

    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
    implementation "androidx.core:core-ktx:1.2.0-rc01"
-    implementation "androidx.activity:activity-ktx:1.1.0-rc03"
+    implementation "androidx.activity:activity-ktx:1.1.0"
    implementation "androidx.appcompat:appcompat:1.1.0"
    implementation "androidx.appcompat:appcompat-resources:1.1.0"
-    implementation "androidx.fragment:fragment-ktx:1.2.0-rc05"
+    implementation "androidx.fragment:fragment-ktx:1.2.0"
    implementation "androidx.annotation:annotation:1.1.0"
    implementation "androidx.multidex:multidex:2.0.1"

@ -139,7 +139,7 @@ dependencies {
    implementation "androidx.swiperefreshlayout:swiperefreshlayout:1.1.0-alpha03"
    implementation "androidx.constraintlayout:constraintlayout:1.1.3"
    implementation "androidx.coordinatorlayout:coordinatorlayout:1.1.0"
-    implementation "com.google.android.material:material:1.1.0-rc01"
+    implementation "com.google.android.material:material:1.1.0-rc02"
    implementation "com.github.wulkanowy:material-chips-input:2.0.1"
    implementation "com.github.PhilJay:MPAndroidChart:v3.1.0"
    implementation "me.zhanghai.android.materialprogressbar:library:1.6.1"
@ -167,16 +167,18 @@ dependencies {

    implementation "com.github.pwittchen:reactivenetwork-rx2:3.0.6"
    implementation "io.reactivex.rxjava2:rxandroid:2.1.1"
-    implementation "io.reactivex.rxjava2:rxjava:2.2.16"
+    implementation "io.reactivex.rxjava2:rxjava:2.2.17"

    implementation "com.google.code.gson:gson:2.8.6"
-    implementation "com.jakewharton.threetenabp:threetenabp:1.2.1"
+    implementation "com.jakewharton.threetenabp:threetenabp:1.2.2"
    implementation "com.jakewharton.timber:timber:4.7.1"
    implementation "at.favre.lib:slf4j-timber:1.0.1"
    implementation "com.mikepenz:aboutlibraries-core:7.1.0"
    implementation 'com.wdullaer:materialdatetimepicker:4.2.3'

-    playImplementation "com.google.firebase:firebase-core:17.2.1"
+    implementation("io.coil-kt:coil:0.9.2")
+
+    playImplementation "com.google.firebase:firebase-core:17.2.2"
    playImplementation "com.crashlytics.sdk.android:crashlytics:2.10.1"

    releaseImplementation "fr.o80.chucker:library-no-op:$chucker"
@ -186,7 +188,7 @@ dependencies {

    testImplementation "junit:junit:4.13"
    testImplementation "io.mockk:mockk:$mockk"
-    testImplementation "org.threeten:threetenbp:1.4.0"
+    testImplementation "org.threeten:threetenbp:1.4.1"
    testImplementation "org.mockito:mockito-inline:3.2.4"

    androidTestImplementation "androidx.test:core:1.2.0"
--- a/app/jacoco.gradle
+++ b/app/jacoco.gradle
@ -1,7 +1,7 @@
 apply plugin: "jacoco"

 jacoco {
-    toolVersion "0.8.4"
+    toolVersion "0.8.5"
    reportsDir = file("$buildDir/reports")
 }

--- a/app/schemas/io.github.wulkanowy.data.db.AppDatabase/20.json
+++ b/app/schemas/io.github.wulkanowy.data.db.AppDatabase/20.json
--- a/app/schemas/io.github.wulkanowy.data.db.AppDatabase/21.json
+++ b/app/schemas/io.github.wulkanowy.data.db.AppDatabase/21.json
--- a/app/src/androidTest/java/io/github/wulkanowy/data/repositories/attendance/AttendanceLocalTest.kt
+++ b/app/src/androidTest/java/io/github/wulkanowy/data/repositories/attendance/AttendanceLocalTest.kt
@ -35,9 +35,9 @@ class AttendanceLocalTest {
    @Test
    fun saveAndReadTest() {
        attendanceLocal.saveAttendance(listOf(
-                Attendance(1, 2, LocalDate.of(2018, 9, 10), 0, "", "", false, false, false, false, false, false),
-                Attendance(1, 2, LocalDate.of(2018, 9, 14), 0, "", "", false, false, false, false, false, false),
-                Attendance(1, 2, LocalDate.of(2018, 9, 17), 0, "", "", false, false, false, false, false, false)
+            Attendance(1, 2, 3, LocalDate.of(2018, 9, 10), 0, "", "", false, false, false, false, false, false, false, SentExcuseStatus.ACCEPTED.name),
+            Attendance(1, 2, 3, LocalDate.of(2018, 9, 14), 0, "", "", false, false, false, false, false, false, false, SentExcuseStatus.WAITING.name),
+            Attendance(1, 2, 3, LocalDate.of(2018, 9, 17), 0, "", "", false, false, false, false, false, false, false, SentExcuseStatus.ACCEPTED.name)
        ))

        val attendance = attendanceLocal
--- a/app/src/androidTest/java/io/github/wulkanowy/data/repositories/timetable/TestTimetableEntityCreator.kt
+++ b/app/src/androidTest/java/io/github/wulkanowy/data/repositories/timetable/TestTimetableEntityCreator.kt
@ -2,8 +2,8 @@ package io.github.wulkanowy.data.repositories.timetable

 import org.threeten.bp.LocalDateTime
 import org.threeten.bp.LocalDateTime.now
-import io.github.wulkanowy.sdk.pojo.Timetable as TimetableRemote
 import io.github.wulkanowy.data.db.entities.Timetable as TimetableLocal
+import io.github.wulkanowy.sdk.pojo.Timetable as TimetableRemote

 fun createTimetableLocal(start: LocalDateTime, number: Int, room: String = "", subject: String = "", teacher: String = "", changes: Boolean = false): TimetableLocal {
    return TimetableLocal(
@ -21,6 +21,7 @@ fun createTimetableLocal(start: LocalDateTime, number: Int, room: String = "", s
        teacher = teacher,
        teacherOld = "",
        info = "",
+        studentPlan = true,
        changes = changes,
        canceled = false
    )
--- a/app/src/debug/res/drawable-anydpi-v24/ic_stat_grade.xml
+++ b/app/src/debug/res/drawable-anydpi-v24/ic_stat_grade.xml
@ -0,0 +1,12 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="30.434782"
+    android:viewportHeight="30.434782">
+    <path
+        android:fillColor="#ffffff"
+        android:pathData="M 8.131 2.131 C 7.601 2.131 7.092 2.342 6.717 2.717 C 6.342 3.092 6.131 3.601 6.131 4.131 L 6.131 18.131 C 6.131 18.661 6.342 19.17 6.717 19.545 C 7.092 19.92 7.601 20.131 8.131 20.131 L 16.918 20.131 C 17.252 19.39 17.712 18.714 18.277 18.131 L 8.131 18.131 L 8.131 4.131 L 22.131 4.131 L 22.131 16.1 C 22.516 16.034 22.906 16.001 23.297 16 C 23.576 16.002 23.854 16.02 24.131 16.055 L 24.131 4.131 C 24.131 3.601 23.92 3.092 23.545 2.717 C 23.17 2.342 22.661 2.131 22.131 2.131 L 8.131 2.131 Z M 2.131 6.131 L 2.131 22.131 C 2.131 22.661 2.342 23.17 2.717 23.545 C 3.092 23.92 3.601 24.131 4.131 24.131 L 16.391 24.131 C 16.329 23.757 16.297 23.379 16.297 23 C 16.299 22.709 16.319 22.419 16.357 22.131 L 4.131 22.131 L 4.131 6.131 L 2.131 6.131 Z M 14.131 6.131 C 13.601 6.131 13.092 6.342 12.717 6.717 C 12.342 7.092 12.131 7.601 12.131 8.131 L 12.131 14.131 C 12.131 15.231 13.031 16.131 14.131 16.131 L 16.131 16.131 C 16.661 16.131 17.17 15.92 17.545 15.545 C 17.92 15.17 18.131 14.661 18.131 14.131 L 18.131 12.131 C 18.131 11.601 17.92 11.092 17.545 10.717 C 17.17 10.342 16.661 10.131 16.131 10.131 L 14.131 10.131 L 14.131 8.131 L 18.131 8.131 L 18.131 6.131 L 14.131 6.131 Z M 14.131 12.131 L 16.131 12.131 L 16.131 14.131 L 14.131 14.131 L 14.131 12.131 Z" />
+    <path
+        android:fillColor="#ffffff"
+        android:pathData="M 20.174 28 L 20.174 18.521 L 23.091 18.521 Q 24.341 18.521 25.324 19.087 Q 26.314 19.647 26.867 20.689 Q 27.421 21.724 27.421 23.046 L 27.421 23.482 Q 27.421 24.803 26.874 25.832 Q 26.333 26.861 25.344 27.427 Q 24.354 27.993 23.111 28 Z M 22.128 20.103 L 22.128 26.431 L 23.072 26.431 Q 24.217 26.431 24.823 25.682 Q 25.428 24.934 25.441 23.54 L 25.441 23.039 Q 25.441 21.594 24.842 20.852 Q 24.243 20.103 23.091 20.103 Z" />
+</vector>
--- a/app/src/debug/res/drawable-anydpi-v24/ic_stat_luckynumber.xml
+++ b/app/src/debug/res/drawable-anydpi-v24/ic_stat_luckynumber.xml
@ -0,0 +1,12 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="28.26087"
+    android:viewportHeight="28.26087">
+    <path
+        android:fillColor="#ffffff"
+        android:pathData="M 10.734 3.043 C 9.234 3.043 8.043 4.293 8.043 5.793 C 8.043 7.683 9.743 9.223 13.043 12.223 C 16.343 9.223 18.043 7.684 18.043 5.734 C 18.043 4.234 16.793 3.043 15.293 3.043 C 14.433 3.043 13.613 3.403 13.043 4.043 C 12.473 3.403 11.654 3.043 10.734 3.043 Z M 5.734 8.043 C 4.234 8.043 3.043 9.293 3.043 10.793 C 3.043 11.653 3.403 12.473 4.043 13.043 C 3.403 13.613 3.043 14.434 3.043 15.354 C 3.043 16.854 4.293 18.043 5.793 18.043 C 7.683 18.043 9.223 16.343 12.223 13.043 C 9.223 9.743 7.684 8.043 5.734 8.043 Z M 20.293 8.043 C 18.403 8.043 16.863 9.743 13.873 13.043 C 15.043 14.334 15.987 15.373 16.824 16.168 C 17.476 15.484 18.26 14.94 19.129 14.567 C 19.997 14.195 20.932 14.002 21.877 14 C 22.181 14.002 22.484 14.025 22.785 14.066 C 22.615 13.68 22.365 13.329 22.043 13.043 C 22.683 12.473 23.043 11.654 23.043 10.734 C 23.043 9.234 21.793 8.043 20.293 8.043 Z M 13.043 13.863 C 9.743 16.863 8.043 18.404 8.043 20.354 C 8.043 21.854 9.293 23.043 10.793 23.043 C 11.653 23.043 12.473 22.683 13.043 22.043 C 13.576 22.642 14.333 22.982 15.182 23.025 C 14.981 22.369 14.879 21.686 14.877 21 C 14.88 19.52 15.351 18.078 16.225 16.883 C 15.422 16.032 14.368 15.067 13.043 13.863 Z" />
+    <path
+        android:fillColor="#ffffff"
+        android:pathData="M 18.754 26 L 18.754 16.521 L 21.671 16.521 Q 22.921 16.521 23.904 17.087 Q 24.893 17.647 25.447 18.689 Q 26 19.724 26 21.046 L 26 21.482 Q 26 22.803 25.453 23.832 Q 24.913 24.861 23.923 25.427 Q 22.934 25.993 21.69 26 Z M 20.707 18.103 L 20.707 24.431 L 21.651 24.431 Q 22.797 24.431 23.402 23.682 Q 24.008 22.934 24.021 21.54 L 24.021 21.039 Q 24.021 19.594 23.422 18.852 Q 22.823 18.103 21.671 18.103 Z" />
+</vector>
--- a/app/src/debug/res/drawable-anydpi-v24/ic_stat_message.xml
+++ b/app/src/debug/res/drawable-anydpi-v24/ic_stat_message.xml
@ -0,0 +1,12 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="28.26087"
+    android:viewportHeight="28.26087">
+    <path
+        android:fillColor="#ffffff"
+        android:pathData="M 5.043 3.043 C 3.943 3.043 3.053 3.943 3.053 5.043 L 3.043 23.043 L 7.043 19.043 L 15.16 19.043 C 15.646 17.378 16.733 15.952 18.209 15.043 L 7.043 15.043 L 7.043 13.043 L 19.043 13.043 L 19.043 14.609 C 19.935 14.211 20.9 14.003 21.877 14 C 22.268 14.003 22.658 14.038 23.043 14.105 L 23.043 5.043 C 23.043 3.943 22.143 3.043 21.043 3.043 L 5.043 3.043 Z M 7.043 7.043 L 19.043 7.043 L 19.043 9.043 L 7.043 9.043 L 7.043 7.043 Z M 7.043 10.043 L 19.043 10.043 L 19.043 12.043 L 7.043 12.043 L 7.043 10.043 Z" />
+    <path
+        android:fillColor="#ffffff"
+        android:pathData="M 18.754 26 L 18.754 16.521 L 21.671 16.521 Q 22.921 16.521 23.904 17.087 Q 24.893 17.647 25.447 18.689 Q 26 19.724 26 21.046 L 26 21.482 Q 26 22.803 25.453 23.832 Q 24.913 24.861 23.923 25.427 Q 22.934 25.993 21.69 26 Z M 20.707 18.103 L 20.707 24.431 L 21.651 24.431 Q 22.797 24.431 23.402 23.682 Q 24.008 22.934 24.021 21.54 L 24.021 21.039 Q 24.021 19.594 23.422 18.852 Q 22.823 18.103 21.671 18.103 Z" />
+</vector>
--- a/app/src/debug/res/drawable-anydpi-v24/ic_stat_note.xml
+++ b/app/src/debug/res/drawable-anydpi-v24/ic_stat_note.xml
@ -0,0 +1,12 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="28.26087"
+    android:viewportHeight="28.26087">
+    <path
+        android:fillColor="#ffffff"
+        android:pathData="M 3.043 3.043 L 3.043 12.043 C 3.043 13.043 4.043 14.043 5.043 14.043 L 7.244 14.043 C 7.644 16.043 8.943 17.743 12.043 18.043 L 12.043 20.143 C 9.843 20.343 9.043 21.444 9.043 22.744 L 9.043 23.043 L 15.188 23.043 C 14.983 22.381 14.879 21.693 14.877 21 C 14.877 20.763 14.888 20.527 14.912 20.291 C 14.649 20.226 14.364 20.172 14.043 20.143 L 14.043 18.043 C 14.68 17.981 15.224 17.848 15.717 17.678 C 16.382 16.446 17.401 15.442 18.643 14.795 C 18.725 14.551 18.792 14.299 18.844 14.043 L 21.043 14.043 C 22.043 14.043 23.043 13.043 23.043 12.043 L 23.043 3.043 L 19.043 3.043 C 18.143 3.043 17.043 4.043 17.043 5.043 L 9.043 5.043 C 9.043 4.043 7.943 3.043 7.043 3.043 L 3.043 3.043 Z M 5.043 5.043 L 7.043 5.043 L 7.043 12.043 L 5.043 12.043 L 5.043 5.043 Z M 19.043 5.043 L 21.043 5.043 L 21.043 12.043 L 19.043 12.043 L 19.043 5.043 Z" />
+    <path
+        android:fillColor="#ffffff"
+        android:pathData="M 18.754 26 L 18.754 16.521 L 21.671 16.521 Q 22.921 16.521 23.904 17.087 Q 24.893 17.647 25.447 18.689 Q 26 19.724 26 21.046 L 26 21.482 Q 26 22.803 25.453 23.832 Q 24.913 24.861 23.923 25.427 Q 22.934 25.993 21.69 26 Z M 20.707 18.103 L 20.707 24.431 L 21.651 24.431 Q 22.797 24.431 23.402 23.682 Q 24.008 22.934 24.021 21.54 L 24.021 21.039 Q 24.021 19.594 23.422 18.852 Q 22.823 18.103 21.671 18.103 Z" />
+</vector>
--- a/app/src/debug/res/drawable-hdpi/ic_stat_grade.png
+++ b/app/src/debug/res/drawable-hdpi/ic_stat_grade.png
--- a/app/src/debug/res/drawable-hdpi/ic_stat_luckynumber.png
+++ b/app/src/debug/res/drawable-hdpi/ic_stat_luckynumber.png
--- a/app/src/debug/res/drawable-hdpi/ic_stat_message.png
+++ b/app/src/debug/res/drawable-hdpi/ic_stat_message.png
--- a/app/src/debug/res/drawable-hdpi/ic_stat_note.png
+++ b/app/src/debug/res/drawable-hdpi/ic_stat_note.png
--- a/app/src/debug/res/drawable-mdpi/ic_stat_grade.png
+++ b/app/src/debug/res/drawable-mdpi/ic_stat_grade.png
--- a/app/src/debug/res/drawable-mdpi/ic_stat_luckynumber.png
+++ b/app/src/debug/res/drawable-mdpi/ic_stat_luckynumber.png
--- a/app/src/debug/res/drawable-mdpi/ic_stat_message.png
+++ b/app/src/debug/res/drawable-mdpi/ic_stat_message.png
--- a/app/src/debug/res/drawable-mdpi/ic_stat_note.png
+++ b/app/src/debug/res/drawable-mdpi/ic_stat_note.png
--- a/app/src/debug/res/drawable-xhdpi/ic_stat_grade.png
+++ b/app/src/debug/res/drawable-xhdpi/ic_stat_grade.png
--- a/app/src/debug/res/drawable-xhdpi/ic_stat_luckynumber.png
+++ b/app/src/debug/res/drawable-xhdpi/ic_stat_luckynumber.png
--- a/app/src/debug/res/drawable-xhdpi/ic_stat_message.png
+++ b/app/src/debug/res/drawable-xhdpi/ic_stat_message.png
--- a/app/src/debug/res/drawable-xhdpi/ic_stat_note.png
+++ b/app/src/debug/res/drawable-xhdpi/ic_stat_note.png
--- a/app/src/debug/res/drawable-xxhdpi/ic_stat_grade.png
+++ b/app/src/debug/res/drawable-xxhdpi/ic_stat_grade.png
--- a/app/src/debug/res/drawable-xxhdpi/ic_stat_luckynumber.png
+++ b/app/src/debug/res/drawable-xxhdpi/ic_stat_luckynumber.png
--- a/app/src/debug/res/drawable-xxhdpi/ic_stat_message.png
+++ b/app/src/debug/res/drawable-xxhdpi/ic_stat_message.png
--- a/app/src/debug/res/drawable-xxhdpi/ic_stat_note.png
+++ b/app/src/debug/res/drawable-xxhdpi/ic_stat_note.png
--- a/app/src/main/assets/creators.json
+++ b/app/src/main/assets/creators.json
@ -0,0 +1,34 @@
+[
+  {
+    "displayName": "Mikołaj Pich",
+    "githubUsername": "mklkj"
+  },
+  {
+    "displayName": "Rafał Borcz",
+    "githubUsername": "Faierbel"
+  },
+  {
+    "displayName": "Dominik Korsa",
+    "githubUsername": "dominik-korsa"
+  },
+  {
+    "displayName": "Kacper Ziubryniewicz",
+    "githubUsername": "kapi2289"
+  },
+  {
+    "displayName": "doteq",
+    "githubUsername": "doteq"
+  },
+  {
+    "displayName": "Pavuloff",
+    "githubUsername": "pavuloff"
+  },
+  {
+    "displayName": "Piotr Romanowski",
+    "githubUsername": "v0idzz"
+  },
+  {
+    "displayName": "Dinolek",
+    "githubUsername": "Dinolek"
+  }
+]
--- a/app/src/main/java/io/github/wulkanowy/data/RepositoryModule.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/RepositoryModule.kt
@ -2,6 +2,7 @@ package io.github.wulkanowy.data

 import android.content.Context
 import android.content.SharedPreferences
+import android.content.res.AssetManager
 import android.content.res.Resources
 import androidx.preference.PreferenceManager
 import com.github.pwittchen.reactivenetwork.library.rx2.internet.observing.InternetObservingSettings
@ -58,6 +59,10 @@ internal class RepositoryModule {
    @Provides
    fun provideResources(context: Context): Resources = context.resources

+    @Singleton
+    @Provides
+    fun provideAssets(context: Context): AssetManager = context.assets
+
    @Singleton
    @Provides
    fun provideSharedPref(context: Context): SharedPreferences = PreferenceManager.getDefaultSharedPreferences(context)
--- a/app/src/main/java/io/github/wulkanowy/data/db/AppDatabase.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/db/AppDatabase.kt
@ -60,6 +60,8 @@ import io.github.wulkanowy.data.db.migrations.Migration17
 import io.github.wulkanowy.data.db.migrations.Migration18
 import io.github.wulkanowy.data.db.migrations.Migration19
 import io.github.wulkanowy.data.db.migrations.Migration2
+import io.github.wulkanowy.data.db.migrations.Migration20
+import io.github.wulkanowy.data.db.migrations.Migration21
 import io.github.wulkanowy.data.db.migrations.Migration3
 import io.github.wulkanowy.data.db.migrations.Migration4
 import io.github.wulkanowy.data.db.migrations.Migration5
@ -101,7 +103,7 @@ import javax.inject.Singleton
 abstract class AppDatabase : RoomDatabase() {

    companion object {
-        const val VERSION_SCHEMA = 19
+        const val VERSION_SCHEMA = 21

        fun getMigrations(sharedPrefProvider: SharedPrefProvider): Array<Migration> {
            return arrayOf(
@ -122,7 +124,9 @@ abstract class AppDatabase : RoomDatabase() {
                Migration16(),
                Migration17(),
                Migration18(),
-                Migration19(sharedPrefProvider)
+                Migration19(sharedPrefProvider),
+                Migration20(),
+                Migration21()
            )
        }

--- a/app/src/main/java/io/github/wulkanowy/data/db/entities/Attendance.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/db/entities/Attendance.kt
@ -15,6 +15,9 @@ data class Attendance(
    @ColumnInfo(name = "diary_id")
    val diaryId: Int,

+    @ColumnInfo(name = "time_id")
+    val timeId: Int,
+
    val date: LocalDate,

    val number: Int,
@ -33,7 +36,13 @@ data class Attendance(

    val excused: Boolean,

-    val deleted: Boolean
+    val deleted: Boolean,
+
+    val excusable: Boolean,
+
+    @ColumnInfo(name = "excuse_status")
+    val excuseStatus: String?
+
 ) : Serializable {

    @PrimaryKey(autoGenerate = true)
--- a/app/src/main/java/io/github/wulkanowy/data/db/entities/Timetable.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/db/entities/Timetable.kt
@ -40,6 +40,9 @@ data class Timetable(

    val info: String,

+    @ColumnInfo(name = "student_plan")
+    val studentPlan: Boolean,
+
    val changes: Boolean,

    val canceled: Boolean
--- a/app/src/main/java/io/github/wulkanowy/data/db/migrations/Migration20.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/db/migrations/Migration20.kt
@ -0,0 +1,42 @@
+package io.github.wulkanowy.data.db.migrations
+
+import androidx.room.migration.Migration
+import androidx.sqlite.db.SupportSQLiteDatabase
+
+class Migration20 : Migration(19, 20) {
+
+    override fun migrate(database: SupportSQLiteDatabase) {
+        migrateTimetable(database)
+        truncateSubjects(database)
+    }
+
+    private fun migrateTimetable(database: SupportSQLiteDatabase) {
+        database.execSQL("DROP TABLE Timetable")
+        database.execSQL("""
+            CREATE TABLE IF NOT EXISTS `Timetable` (
+                `id` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
+                `student_id` INTEGER NOT NULL,
+                `diary_id` INTEGER NOT NULL,
+                `number` INTEGER NOT NULL,
+                `start` INTEGER NOT NULL,
+                `end` INTEGER NOT NULL,
+                `date` INTEGER NOT NULL,
+                `subject` TEXT NOT NULL,
+                `subjectOld` TEXT NOT NULL,
+                `group` TEXT NOT NULL,
+                `room` TEXT NOT NULL,
+                `roomOld` TEXT NOT NULL,
+                `teacher` TEXT NOT NULL,
+                `teacherOld` TEXT NOT NULL,
+                `info` TEXT NOT NULL,
+                `student_plan` INTEGER NOT NULL,
+                `changes` INTEGER NOT NULL,
+                `canceled` INTEGER NOT NULL
+            )
+        """)
+    }
+
+    private fun truncateSubjects(database: SupportSQLiteDatabase) {
+        database.execSQL("DELETE FROM Subjects")
+    }
+}
--- a/app/src/main/java/io/github/wulkanowy/data/db/migrations/Migration21.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/db/migrations/Migration21.kt
@ -0,0 +1,15 @@
+package io.github.wulkanowy.data.db.migrations
+
+import androidx.room.migration.Migration
+import androidx.sqlite.db.SupportSQLiteDatabase
+
+class Migration21 : Migration(20, 21) {
+
+    override fun migrate(database: SupportSQLiteDatabase) {
+        database.execSQL("ALTER TABLE Attendance ADD COLUMN excusable INTEGER NOT NULL DEFAULT 0")
+        database.execSQL("ALTER TABLE Attendance ADD COLUMN time_id INTEGER NOT NULL DEFAULT 0")
+        database.execSQL("ALTER TABLE Attendance ADD COLUMN excuse_status TEXT DEFAULT NULL")
+
+        database.execSQL("DELETE FROM Semesters")
+    }
+}
--- a/app/src/main/java/io/github/wulkanowy/data/pojos/AppCreator.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/pojos/AppCreator.kt
@ -0,0 +1,3 @@
+package io.github.wulkanowy.data.pojos
+
+class AppCreator(val displayName: String, val githubUsername: String)
--- a/app/src/main/java/io/github/wulkanowy/data/repositories/appcreator/AppCreatorRepository.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/repositories/appcreator/AppCreatorRepository.kt
@ -0,0 +1,20 @@
+package io.github.wulkanowy.data.repositories.appcreator
+
+import android.content.res.AssetManager
+import com.google.gson.Gson
+import io.github.wulkanowy.data.pojos.AppCreator
+import io.reactivex.Single
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class AppCreatorRepository @Inject constructor(private val assets: AssetManager) {
+    fun getAppCreators(): Single<List<AppCreator>> {
+        return Single.fromCallable<List<AppCreator>> {
+            Gson().fromJson(
+                assets.open("creators.json").bufferedReader().use { it.readText() },
+                Array<AppCreator>::class.java
+            ).toList()
+        }
+    }
+}
--- a/app/src/main/java/io/github/wulkanowy/data/repositories/attendance/AttendanceRemote.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/repositories/attendance/AttendanceRemote.kt
@ -3,8 +3,11 @@ package io.github.wulkanowy.data.repositories.attendance
 import io.github.wulkanowy.data.db.entities.Attendance
 import io.github.wulkanowy.data.db.entities.Semester
 import io.github.wulkanowy.sdk.Sdk
+import io.github.wulkanowy.sdk.pojo.Absent
 import io.reactivex.Single
 import org.threeten.bp.LocalDate
+import org.threeten.bp.LocalDateTime
+import org.threeten.bp.LocalTime
 import javax.inject.Inject
 import javax.inject.Singleton

@ -19,6 +22,7 @@ class AttendanceRemote @Inject constructor(private val sdk: Sdk) {
                        studentId = semester.studentId,
                        diaryId = semester.diaryId,
                        date = it.date,
+                        timeId = it.timeId,
                        number = it.number,
                        subject = it.subject,
                        name = it.name,
@ -27,9 +31,20 @@ class AttendanceRemote @Inject constructor(private val sdk: Sdk) {
                        exemption = it.exemption,
                        lateness = it.lateness,
                        excused = it.excused,
-                        deleted = it.deleted
+                        deleted = it.deleted,
+                        excusable = it.excusable,
+                        excuseStatus = it.excuseStatus?.name
                    )
                }
            }
    }
+
+    fun excuseAbsence(semester: Semester, absenceList: List<Attendance>, reason: String?): Single<Boolean> {
+        return sdk.switchDiary(semester.diaryId, semester.schoolYear).excuseForAbsence(absenceList.map { attendance ->
+            Absent(
+                date = LocalDateTime.of(attendance.date, LocalTime.of(0, 0)),
+                timeId = attendance.timeId
+            )
+        }, reason)
+    }
 }
--- a/app/src/main/java/io/github/wulkanowy/data/repositories/attendance/AttendanceRepository.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/repositories/attendance/AttendanceRepository.kt
@ -41,4 +41,8 @@ class AttendanceRepository @Inject constructor(
                    }).map { list -> list.filter { it.date in startDate..endDate } }
            }
    }
+
+    fun excuseForAbsence(semester: Semester, attendanceList: List<Attendance>, reason: String? = null): Single<Boolean> {
+        return remote.excuseAbsence(semester, attendanceList, reason)
+    }
 }
--- a/app/src/main/java/io/github/wulkanowy/data/repositories/attendance/SentExcuseStatus.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/repositories/attendance/SentExcuseStatus.kt
@ -0,0 +1,7 @@
+package io.github.wulkanowy.data.repositories.attendance
+
+enum class SentExcuseStatus(val id: Int = 0) {
+    WAITING,
+    ACCEPTED,
+    DENIED
+}
--- a/app/src/main/java/io/github/wulkanowy/data/repositories/gradestatistics/GradeStatisticsLocal.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/repositories/gradestatistics/GradeStatisticsLocal.kt
@ -5,6 +5,7 @@ import io.github.wulkanowy.data.db.dao.GradeStatisticsDao
 import io.github.wulkanowy.data.db.entities.GradePointsStatistics
 import io.github.wulkanowy.data.db.entities.GradeStatistics
 import io.github.wulkanowy.data.db.entities.Semester
+import io.github.wulkanowy.utils.roundToDecimalPlaces
 import io.reactivex.Maybe
 import javax.inject.Inject
 import javax.inject.Singleton
@ -40,9 +41,9 @@ class GradeStatisticsLocal @Inject constructor(
            "Wszystkie" -> gradePointsStatisticsDb.loadAll(semester.semesterId, semester.studentId).flatMap { list ->
                if (list.isEmpty()) return@flatMap Maybe.empty<GradePointsStatistics>()
                Maybe.just(GradePointsStatistics(semester.studentId, semester.semesterId, subjectName,
-                    list.fold(.0) { acc, e -> acc + e.others },
-                    list.fold(.0) { acc, e -> acc + e.student })
-                )
+                    (list.fold(.0) { acc, e -> acc + e.others } / list.size).roundToDecimalPlaces(2),
+                    (list.fold(.0) { acc, e -> acc + e.student } / list.size).roundToDecimalPlaces(2)
+                ))
            }
            else -> gradePointsStatisticsDb.loadSubject(semester.semesterId, semester.studentId, subjectName)
        }
--- a/app/src/main/java/io/github/wulkanowy/data/repositories/preferences/PreferencesRepository.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/repositories/preferences/PreferencesRepository.kt
@ -65,6 +65,9 @@ class PreferencesRepository @Inject constructor(
    val fillMessageContent: Boolean
        get() = getBoolean(R.string.pref_key_fill_message_content, R.bool.pref_default_fill_message_content)

+    val showWholeClassPlan: String
+        get() = getString(R.string.pref_key_timetable_show_whole_class, R.string.pref_default_timetable_show_whole_class)
+
    private fun getString(id: Int, default: Int) = getString(context.getString(id), default)

    private fun getString(id: String, default: Int) = sharedPref.getString(id, context.getString(default)) ?: context.getString(default)
--- a/app/src/main/java/io/github/wulkanowy/data/repositories/semester/SemesterRepository.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/repositories/semester/SemesterRepository.kt
@ -36,7 +36,7 @@ class SemesterRepository @Inject constructor(
                                local.saveSemesters(new.uniqueSubtract(old))
                            }
                    } else {
-                        Timber.i("Current semesters list:\n${currentSemesters.joinToString(separator = "\n")}")
+                        Timber.i("Current semesters list:\n${new.joinToString(separator = "\n")}")
                        throw IllegalArgumentException("Current semester can be only one.")
                    }
                }.flatMap { local.getSemesters(student).toSingle(emptyList()) })
--- a/app/src/main/java/io/github/wulkanowy/data/repositories/timetable/TimetableRemote.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/repositories/timetable/TimetableRemote.kt
@ -30,6 +30,7 @@ class TimetableRemote @Inject constructor(private val sdk: Sdk) {
                        teacher = it.teacher,
                        teacherOld = it.teacherOld,
                        info = it.info,
+                        studentPlan = it.studentPlan,
                        changes = it.changes,
                        canceled = it.canceled
                    )
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/about/AboutFragment.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/about/AboutFragment.kt
@ -16,6 +16,7 @@ import eu.davidea.flexibleadapter.common.SmoothScrollLinearLayoutManager
 import eu.davidea.flexibleadapter.items.AbstractFlexibleItem
 import io.github.wulkanowy.R
 import io.github.wulkanowy.ui.base.BaseFragment
+import io.github.wulkanowy.ui.modules.about.creator.CreatorFragment
 import io.github.wulkanowy.ui.modules.about.license.LicenseFragment
 import io.github.wulkanowy.ui.modules.main.MainActivity
 import io.github.wulkanowy.ui.modules.main.MainView
@ -42,6 +43,11 @@ class AboutFragment : BaseFragment(), AboutView, MainView.TitledView {
            Triple(getString(R.string.about_version), "${appInfo.versionName} (${appInfo.versionCode})", getCompatDrawable(R.drawable.ic_all_about))
        }

+    override val creatorsRes: Triple<String, String, Drawable?>?
+        get() = context?.run {
+            Triple(getString(R.string.about_creator), getString(R.string.about_creator_summary), getCompatDrawable(R.drawable.ic_about_creator))
+        }
+
    override val feedbackRes: Triple<String, String, Drawable?>?
        get() = context?.run {
            Triple(getString(R.string.about_feedback), getString(R.string.about_feedback_summary), getCompatDrawable(R.drawable.ic_about_feedback))
@ -143,6 +149,10 @@ class AboutFragment : BaseFragment(), AboutView, MainView.TitledView {
        (activity as? MainActivity)?.pushView(LicenseFragment.newInstance())
    }

+    override fun openCreators() {
+        (activity as? MainActivity)?.pushView(CreatorFragment.newInstance())
+    }
+
    override fun openPrivacyPolicy() {
        context?.openInternetBrowser("https://wulkanowy.github.io/polityka-prywatnosci.html", ::showMessage)
    }
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/about/AboutPresenter.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/about/AboutPresenter.kt
@ -52,6 +52,11 @@ class AboutPresenter @Inject constructor(
                    openLicenses()
                    analytics.logEvent("about_open", "name" to "licenses")
                }
+                creatorsRes?.first -> {
+                    Timber.i("Opening creators view")
+                    openCreators()
+                    analytics.logEvent("about_open", "name" to "creators")
+                }
                privacyRes?.first -> {
                    Timber.i("Opening privacy page ")
                    openPrivacyPolicy()
@ -65,6 +70,7 @@ class AboutPresenter @Inject constructor(
        view?.run {
            updateData(AboutScrollableHeader(), listOfNotNull(
                versionRes?.let { (title, summary, image) -> AboutItem(title, summary, image) },
+                creatorsRes?.let { (title, summary, image) -> AboutItem(title, summary, image) },
                feedbackRes?.let { (title, summary, image) -> AboutItem(title, summary, image) },
                faqRes?.let { (title, summary, image) -> AboutItem(title, summary, image) },
                discordRes?.let { (title, summary, image) -> AboutItem(title, summary, image) },
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/about/AboutView.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/about/AboutView.kt
@ -7,6 +7,8 @@ interface AboutView : BaseView {

    val versionRes: Triple<String, String, Drawable?>?

+    val creatorsRes: Triple<String, String, Drawable?>?
+
    val feedbackRes: Triple<String, String, Drawable?>?

    val faqRes: Triple<String, String, Drawable?>?
@ -33,5 +35,7 @@ interface AboutView : BaseView {

    fun openLicenses()

+    fun openCreators()
+
    fun openPrivacyPolicy()
 }
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/about/creator/CreatorFragment.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/about/creator/CreatorFragment.kt
@ -0,0 +1,76 @@
+package io.github.wulkanowy.ui.modules.about.creator
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.View.GONE
+import android.view.View.VISIBLE
+import android.view.ViewGroup
+import eu.davidea.flexibleadapter.FlexibleAdapter
+import eu.davidea.flexibleadapter.common.FlexibleItemDecoration
+import eu.davidea.flexibleadapter.common.SmoothScrollLinearLayoutManager
+import eu.davidea.flexibleadapter.items.AbstractFlexibleItem
+import io.github.wulkanowy.R
+import io.github.wulkanowy.ui.base.BaseFragment
+import io.github.wulkanowy.ui.modules.main.MainView
+import io.github.wulkanowy.utils.openInternetBrowser
+import io.github.wulkanowy.utils.setOnItemClickListener
+import kotlinx.android.synthetic.main.fragment_creator.*
+import javax.inject.Inject
+
+class CreatorFragment : BaseFragment(), CreatorView, MainView.TitledView {
+
+    @Inject
+    lateinit var presenter: CreatorPresenter
+
+    @Inject
+    lateinit var creatorsAdapter: FlexibleAdapter<AbstractFlexibleItem<*>>
+
+    override val titleStringId get() = R.string.creators_title
+
+    companion object {
+        fun newInstance() = CreatorFragment()
+    }
+
+    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
+        return inflater.inflate(R.layout.fragment_creator, container, false)
+    }
+
+    override fun onActivityCreated(savedInstanceState: Bundle?) {
+        super.onActivityCreated(savedInstanceState)
+        presenter.onAttachView(this)
+    }
+
+    override fun initView() {
+        with(creatorRecycler) {
+            layoutManager = SmoothScrollLinearLayoutManager(context)
+            adapter = creatorsAdapter
+            addItemDecoration(FlexibleItemDecoration(context)
+                .withDefaultDivider()
+                .withDrawDividerOnLastItem(false))
+        }
+        creatorsAdapter.setOnItemClickListener(presenter::onItemSelected)
+        creatorSeeMore.setOnClickListener { presenter.onSeeMoreClick() }
+    }
+
+    override fun updateData(data: List<CreatorItem>) {
+        creatorsAdapter.updateDataSet(data)
+    }
+
+    override fun openUserGithubPage(username: String) {
+        context?.openInternetBrowser("https://github.com/${username}", ::showMessage)
+    }
+
+    override fun openGithubContributorsPage() {
+        context?.openInternetBrowser("https://github.com/wulkanowy/wulkanowy/graphs/contributors", ::showMessage)
+    }
+
+    override fun showProgress(show: Boolean) {
+        creatorProgress.visibility = if (show) VISIBLE else GONE
+    }
+
+    override fun onDestroyView() {
+        presenter.onDetachView()
+        super.onDestroyView()
+    }
+}
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/about/creator/CreatorItem.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/about/creator/CreatorItem.kt
@ -0,0 +1,50 @@
+package io.github.wulkanowy.ui.modules.about.creator
+
+import android.view.View
+import coil.api.load
+import coil.transform.RoundedCornersTransformation
+import eu.davidea.flexibleadapter.FlexibleAdapter
+import eu.davidea.flexibleadapter.items.AbstractFlexibleItem
+import eu.davidea.flexibleadapter.items.IFlexible
+import eu.davidea.viewholders.FlexibleViewHolder
+import io.github.wulkanowy.R
+import io.github.wulkanowy.data.pojos.AppCreator
+import kotlinx.android.extensions.LayoutContainer
+import kotlinx.android.synthetic.main.item_creator.*
+
+class CreatorItem(val creator: AppCreator) : AbstractFlexibleItem<CreatorItem.ViewHolder>() {
+
+    override fun getLayoutRes() = R.layout.item_creator
+
+    override fun createViewHolder(view: View, adapter: FlexibleAdapter<IFlexible<*>>) = ViewHolder(view, adapter)
+
+    override fun bindViewHolder(adapter: FlexibleAdapter<IFlexible<*>>, holder: ViewHolder, position: Int, payloads: MutableList<Any>) {
+        with(holder) {
+            creatorItemName.text = creator.displayName
+
+            creatorItemAvatar.load("https://github.com/${creator.githubUsername}.png") {
+                transformations(RoundedCornersTransformation(8f))
+                crossfade(true)
+            }
+        }
+    }
+
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (javaClass != other?.javaClass) return false
+
+        other as CreatorItem
+
+        if (creator != other.creator) return false
+
+        return true
+    }
+
+    override fun hashCode() = creator.hashCode()
+
+    class ViewHolder(view: View, adapter: FlexibleAdapter<IFlexible<*>>) : FlexibleViewHolder(view, adapter),
+        LayoutContainer {
+
+        override val containerView: View? get() = contentView
+    }
+}
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/about/creator/CreatorPresenter.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/about/creator/CreatorPresenter.kt
@ -0,0 +1,43 @@
+package io.github.wulkanowy.ui.modules.about.creator
+
+import eu.davidea.flexibleadapter.items.AbstractFlexibleItem
+import io.github.wulkanowy.data.pojos.AppCreator
+import io.github.wulkanowy.data.repositories.appcreator.AppCreatorRepository
+import io.github.wulkanowy.data.repositories.student.StudentRepository
+import io.github.wulkanowy.ui.base.BasePresenter
+import io.github.wulkanowy.ui.base.ErrorHandler
+import io.github.wulkanowy.utils.SchedulersProvider
+import io.reactivex.Single
+import javax.inject.Inject
+
+class CreatorPresenter @Inject constructor(
+    schedulers: SchedulersProvider,
+    errorHandler: ErrorHandler,
+    studentRepository: StudentRepository,
+    private val appCreatorRepository: AppCreatorRepository
+) : BasePresenter<CreatorView>(errorHandler, studentRepository, schedulers) {
+
+    override fun onAttachView(view: CreatorView) {
+        super.onAttachView(view)
+        view.initView()
+        loadData()
+    }
+
+    fun onItemSelected(item: AbstractFlexibleItem<*>) {
+        if (item !is CreatorItem) return
+        view?.openUserGithubPage(item.creator.githubUsername)
+    }
+
+    fun onSeeMoreClick() {
+        view?.openGithubContributorsPage()
+    }
+
+    private fun loadData() {
+        disposable.add(appCreatorRepository.getAppCreators()
+            .map { it.map { creator -> CreatorItem(creator) } }
+            .subscribeOn(schedulers.backgroundThread)
+            .observeOn(schedulers.mainThread)
+            .doFinally { view?.showProgress(false) }
+            .subscribe({ view?.run { updateData(it) } }, { errorHandler.dispatch(it) }))
+    }
+}
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/about/creator/CreatorView.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/about/creator/CreatorView.kt
@ -0,0 +1,16 @@
+package io.github.wulkanowy.ui.modules.about.creator
+
+import io.github.wulkanowy.ui.base.BaseView
+
+interface CreatorView : BaseView {
+
+    fun initView()
+
+    fun updateData(data: List<CreatorItem>)
+
+    fun openUserGithubPage(username: String)
+
+    fun openGithubContributorsPage()
+
+    fun showProgress(show: Boolean)
+}
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/attendance/AttendanceAdapter.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/attendance/AttendanceAdapter.kt
@ -0,0 +1,12 @@
+package io.github.wulkanowy.ui.modules.attendance
+
+import eu.davidea.flexibleadapter.FlexibleAdapter
+import eu.davidea.flexibleadapter.items.IFlexible
+import io.github.wulkanowy.data.db.entities.Attendance
+
+class AttendanceAdapter<T : IFlexible<*>> : FlexibleAdapter<T>(null, null, true) {
+
+    var excuseActionMode: Boolean = false
+
+    var onExcuseCheckboxSelect: (attendanceItem: Attendance, checked: Boolean) -> Unit = { _, _ -> }
+}
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/attendance/AttendanceFragment.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/attendance/AttendanceFragment.kt
@ -1,5 +1,6 @@
 package io.github.wulkanowy.ui.modules.attendance

+import android.content.DialogInterface.BUTTON_POSITIVE
 import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.Menu
@ -10,8 +11,9 @@ import android.view.View.GONE
 import android.view.View.INVISIBLE
 import android.view.View.VISIBLE
 import android.view.ViewGroup
+import androidx.appcompat.app.AlertDialog
+import androidx.appcompat.view.ActionMode
 import com.wdullaer.materialdatetimepicker.date.DatePickerDialog
-import eu.davidea.flexibleadapter.FlexibleAdapter
 import eu.davidea.flexibleadapter.common.FlexibleItemDecoration
 import eu.davidea.flexibleadapter.common.SmoothScrollLinearLayoutManager
 import eu.davidea.flexibleadapter.items.AbstractFlexibleItem
@ -24,6 +26,7 @@ import io.github.wulkanowy.ui.modules.main.MainView
 import io.github.wulkanowy.utils.SchooldaysRangeLimiter
 import io.github.wulkanowy.utils.dpToPx
 import io.github.wulkanowy.utils.setOnItemClickListener
+import kotlinx.android.synthetic.main.dialog_excuse.*
 import kotlinx.android.synthetic.main.fragment_attendance.*
 import org.threeten.bp.LocalDate
 import javax.inject.Inject
@ -35,7 +38,13 @@ class AttendanceFragment : BaseFragment(), AttendanceView, MainView.MainChildVie
    lateinit var presenter: AttendancePresenter

    @Inject
-    lateinit var attendanceAdapter: FlexibleAdapter<AbstractFlexibleItem<*>>
+    lateinit var attendanceAdapter: AttendanceAdapter<AbstractFlexibleItem<*>>
+
+    override val excuseSuccessString: String
+        get() = getString(R.string.attendance_excuse_success)
+
+    override val excuseNoSelectionString: String
+        get() = getString(R.string.attendance_excuse_no_selection)

    companion object {
        private const val SAVED_DATE_KEY = "CURRENT_DATE"
@ -49,6 +58,34 @@ class AttendanceFragment : BaseFragment(), AttendanceView, MainView.MainChildVie

    override val currentStackSize get() = (activity as? MainActivity)?.currentStackSize

+    override val excuseActionMode: Boolean get() = attendanceAdapter.excuseActionMode
+
+    private var actionMode: ActionMode? = null
+    private val actionModeCallback = object : ActionMode.Callback {
+        override fun onCreateActionMode(mode: ActionMode, menu: Menu): Boolean {
+            val inflater = mode.menuInflater
+            inflater.inflate(R.menu.context_menu_excuse, menu)
+            return true
+        }
+
+        override fun onPrepareActionMode(mode: ActionMode, menu: Menu): Boolean {
+            mode.title = getString(R.string.attendance_excuse_title)
+            return presenter.onPrepareActionMode()
+        }
+
+        override fun onDestroyActionMode(mode: ActionMode) {
+            presenter.onDestroyActionMode()
+            actionMode = null
+        }
+
+        override fun onActionItemClicked(mode: ActionMode, menu: MenuItem): Boolean {
+            return when (menu.itemId) {
+                R.id.excuseMenuSubmit -> presenter.onExcuseSubmitButtonClick()
+                else -> false
+            }
+        }
+    }
+
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setHasOptionsMenu(true)
@ -66,6 +103,7 @@ class AttendanceFragment : BaseFragment(), AttendanceView, MainView.MainChildVie

    override fun initView() {
        attendanceAdapter.setOnItemClickListener(presenter::onAttendanceItemSelected)
+        attendanceAdapter.onExcuseCheckboxSelect = presenter::onExcuseCheckboxSelect

        with(attendanceRecycler) {
            layoutManager = SmoothScrollLinearLayoutManager(context)
@ -83,6 +121,8 @@ class AttendanceFragment : BaseFragment(), AttendanceView, MainView.MainChildVie
        attendanceNavDate.setOnClickListener { presenter.onPickDate() }
        attendanceNextButton.setOnClickListener { presenter.onNextDay() }

+        attendanceExcuseButton.setOnClickListener { presenter.onExcuseButtonClick() }
+
        attendanceNavContainer.setElevationCompat(requireContext().dpToPx(8f))
    }

@ -115,6 +155,10 @@ class AttendanceFragment : BaseFragment(), AttendanceView, MainView.MainChildVie
        if (::presenter.isInitialized) presenter.onViewReselected()
    }

+    override fun onFragmentChanged() {
+        if (::presenter.isInitialized) presenter.onMainViewChanged()
+    }
+
    override fun popView() {
        (activity as? MainActivity)?.popView()
    }
@ -155,6 +199,10 @@ class AttendanceFragment : BaseFragment(), AttendanceView, MainView.MainChildVie
        attendanceNextButton.visibility = if (show) VISIBLE else INVISIBLE
    }

+    override fun showExcuseButton(show: Boolean) {
+        attendanceExcuseButton.visibility = if (show) VISIBLE else GONE
+    }
+
    override fun showAttendanceDialog(lesson: Attendance) {
        (activity as? MainActivity)?.showDialogFragment(AttendanceDialog.newInstance(lesson))
    }
@ -174,10 +222,38 @@ class AttendanceFragment : BaseFragment(), AttendanceView, MainView.MainChildVie
        }
    }

+    override fun showExcuseDialog() {
+        AlertDialog.Builder(requireContext())
+            .setTitle(R.string.attendance_excuse_title)
+            .setView(R.layout.dialog_excuse)
+            .setNegativeButton(android.R.string.cancel) { _, _ -> }
+            .create()
+            .apply {
+                setButton(BUTTON_POSITIVE, getString(R.string.attendance_excuse_dialog_submit)) { _, _ ->
+                    presenter.onExcuseDialogSubmit(excuseReason.text?.toString().orEmpty())
+                }
+            }.show()
+    }
+
    override fun openSummaryView() {
        (activity as? MainActivity)?.pushView(AttendanceSummaryFragment.newInstance())
    }

+    override fun startActionMode() {
+        actionMode = (activity as MainActivity?)?.startSupportActionMode(actionModeCallback)
+    }
+
+    override fun showExcuseCheckboxes(show: Boolean) {
+        attendanceAdapter.apply {
+            excuseActionMode = show
+            notifyDataSetChanged()
+        }
+    }
+
+    override fun finishActionMode() {
+        actionMode?.finish()
+    }
+
    override fun onSaveInstanceState(outState: Bundle) {
        super.onSaveInstanceState(outState)
        outState.putLong(SAVED_DATE_KEY, presenter.currentDate.toEpochDay())
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/attendance/AttendanceItem.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/attendance/AttendanceItem.kt
@ -1,18 +1,22 @@
 package io.github.wulkanowy.ui.modules.attendance

 import android.view.View
+import android.view.View.GONE
 import android.view.View.INVISIBLE
 import android.view.View.VISIBLE
+import androidx.core.view.isVisible
 import eu.davidea.flexibleadapter.FlexibleAdapter
 import eu.davidea.flexibleadapter.items.AbstractFlexibleItem
 import eu.davidea.flexibleadapter.items.IFlexible
 import eu.davidea.viewholders.FlexibleViewHolder
 import io.github.wulkanowy.R
 import io.github.wulkanowy.data.db.entities.Attendance
+import io.github.wulkanowy.data.repositories.attendance.SentExcuseStatus
 import kotlinx.android.extensions.LayoutContainer
 import kotlinx.android.synthetic.main.item_attendance.*

-class AttendanceItem(val attendance: Attendance) : AbstractFlexibleItem<AttendanceItem.ViewHolder>() {
+class AttendanceItem(val attendance: Attendance) :
+    AbstractFlexibleItem<AttendanceItem.ViewHolder>() {

    override fun getLayoutRes() = R.layout.item_attendance

@ -26,6 +30,34 @@ class AttendanceItem(val attendance: Attendance) : AbstractFlexibleItem<Attendan
            attendanceItemSubject.text = attendance.subject
            attendanceItemDescription.text = attendance.name
            attendanceItemAlert.visibility = attendance.run { if (absence && !excused) VISIBLE else INVISIBLE }
+            attendanceItemNumber.visibility = GONE
+            attendanceItemExcuseInfo.visibility = GONE
+            attendanceItemExcuseCheckbox.visibility = GONE
+            attendanceItemExcuseCheckbox.isChecked = false
+            attendanceItemExcuseCheckbox.setOnCheckedChangeListener { _, checked ->
+                (adapter as AttendanceAdapter).onExcuseCheckboxSelect(attendance, checked)
+            }
+
+            when (if (attendance.excuseStatus != null) SentExcuseStatus.valueOf(attendance.excuseStatus) else null) {
+                SentExcuseStatus.WAITING -> {
+                    attendanceItemExcuseInfo.setImageResource(R.drawable.ic_excuse_waiting)
+                    attendanceItemExcuseInfo.visibility = VISIBLE
+                    attendanceItemAlert.visibility = INVISIBLE
+                }
+                SentExcuseStatus.DENIED -> {
+                    attendanceItemExcuseInfo.setImageResource(R.drawable.ic_excuse_denied)
+                    attendanceItemExcuseInfo.visibility = VISIBLE
+                }
+                else -> {
+                    if (attendance.excusable && (adapter as AttendanceAdapter).excuseActionMode) {
+                        attendanceItemNumber.visibility = GONE
+                        attendanceItemExcuseCheckbox.visibility = VISIBLE
+                    } else {
+                        attendanceItemNumber.visibility = VISIBLE
+                        attendanceItemExcuseCheckbox.visibility = GONE
+                    }
+                }
+            }
        }
    }

@ -46,8 +78,20 @@ class AttendanceItem(val attendance: Attendance) : AbstractFlexibleItem<Attendan
        return result
    }

-    class ViewHolder(view: View, adapter: FlexibleAdapter<*>) : FlexibleViewHolder(view, adapter), LayoutContainer {
+    class ViewHolder(view: View, val adapter: FlexibleAdapter<*>) :
+        FlexibleViewHolder(view, adapter),
+        LayoutContainer {
+
        override val containerView: View
            get() = contentView
+
+        override fun onClick(view: View?) {
+            super.onClick(view)
+            attendanceItemExcuseCheckbox.apply {
+                if ((adapter as AttendanceAdapter).excuseActionMode && isVisible) {
+                    isChecked = !isChecked
+                }
+            }
+        }
    }
 }
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/attendance/AttendanceModule.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/attendance/AttendanceModule.kt
@ -0,0 +1,12 @@
+package io.github.wulkanowy.ui.modules.attendance
+
+import dagger.Module
+import dagger.Provides
+import eu.davidea.flexibleadapter.items.AbstractFlexibleItem
+
+@Module
+class AttendanceModule {
+
+    @Provides
+    fun provideAttendanceFlexibleAdapter() = AttendanceAdapter<AbstractFlexibleItem<*>>()
+}
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/attendance/AttendancePresenter.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/attendance/AttendancePresenter.kt
@ -2,6 +2,7 @@ package io.github.wulkanowy.ui.modules.attendance

 import android.annotation.SuppressLint
 import eu.davidea.flexibleadapter.items.AbstractFlexibleItem
+import io.github.wulkanowy.data.db.entities.Attendance
 import io.github.wulkanowy.data.repositories.attendance.AttendanceRepository
 import io.github.wulkanowy.data.repositories.preferences.PreferencesRepository
 import io.github.wulkanowy.data.repositories.semester.SemesterRepository
@ -40,6 +41,8 @@ class AttendancePresenter @Inject constructor(

    private lateinit var lastError: Throwable

+    private val attendanceToExcuseList = mutableListOf<Attendance>()
+
    fun onAttachView(view: AttendanceView, date: Long?) {
        super.onAttachView(view)
        view.initView()
@ -51,11 +54,15 @@ class AttendancePresenter @Inject constructor(
    }

    fun onPreviousDay() {
+        view?.finishActionMode()
+        attendanceToExcuseList.clear()
        loadData(currentDate.previousSchoolDay)
        reloadView()
    }

    fun onNextDay() {
+        view?.finishActionMode()
+        attendanceToExcuseList.clear()
        loadData(currentDate.nextSchoolDay)
        reloadView()
    }
@ -100,10 +107,59 @@ class AttendancePresenter @Inject constructor(
        }
    }

+    fun onMainViewChanged() {
+        view?.finishActionMode()
+    }
+
    fun onAttendanceItemSelected(item: AbstractFlexibleItem<*>?) {
-        if (item is AttendanceItem) {
-            Timber.i("Select attendance item ${item.attendance.id}")
-            view?.showAttendanceDialog(item.attendance)
+        view?.apply {
+            if (item is AttendanceItem && !excuseActionMode) {
+                Timber.i("Select attendance item ${item.attendance.id}")
+                showAttendanceDialog(item.attendance)
+            }
+        }
+    }
+
+    fun onExcuseButtonClick() {
+        view?.startActionMode()
+    }
+
+    fun onExcuseCheckboxSelect(attendanceItem: Attendance, checked: Boolean) {
+        if (checked) attendanceToExcuseList.add(attendanceItem)
+        else attendanceToExcuseList.remove(attendanceItem)
+    }
+
+    fun onExcuseSubmitButtonClick(): Boolean {
+        view?.apply {
+            return if (attendanceToExcuseList.isNotEmpty()) {
+                showExcuseDialog()
+                true
+            } else {
+                showMessage(excuseNoSelectionString)
+                false
+            }
+        }
+        return false
+    }
+
+    fun onExcuseDialogSubmit(reason: String) {
+        view?.finishActionMode()
+        excuseAbsence(if (reason != "") reason else null, attendanceToExcuseList.toList())
+    }
+
+    fun onPrepareActionMode(): Boolean {
+        view?.apply {
+            showExcuseCheckboxes(true)
+            showExcuseButton(false)
+        }
+        attendanceToExcuseList.clear()
+        return true
+    }
+
+    fun onDestroyActionMode() {
+        view?.apply {
+            showExcuseCheckboxes(false)
+            showExcuseButton(true)
        }
    }

@ -157,6 +213,7 @@ class AttendancePresenter @Inject constructor(
                        showEmpty(it.isEmpty())
                        showErrorView(false)
                        showContent(it.isNotEmpty())
+                        showExcuseButton(it.any { item -> item.attendance.excusable })
                    }
                    analytics.logEvent("load_attendance", "items" to it.size, "force_refresh" to forceRefresh)
                }) {
@ -167,6 +224,39 @@ class AttendancePresenter @Inject constructor(
        }
    }

+    private fun excuseAbsence(reason: String?, toExcuseList: List<Attendance>) {
+        Timber.i("Excusing absence started")
+        disposable.apply {
+            add(studentRepository.getCurrentStudent()
+                .delay(200, MILLISECONDS)
+                .flatMap { semesterRepository.getCurrentSemester(it) }
+                .flatMap { attendanceRepository.excuseForAbsence(it, toExcuseList, reason) }
+                .subscribeOn(schedulers.backgroundThread)
+                .observeOn(schedulers.mainThread)
+                .doOnSubscribe {
+                    view?.apply {
+                        showProgress(true)
+                        showContent(false)
+                        showExcuseButton(false)
+                    }
+                }
+                .subscribe({
+                    Timber.i("Excusing for absence result: Success")
+                    analytics.logEvent("excuse_absence", "items" to attendanceToExcuseList.size)
+                    attendanceToExcuseList.clear()
+                    view?.apply {
+                        showExcuseButton(false)
+                        showMessage(excuseSuccessString)
+                    }
+                    loadData(currentDate, true)
+                }) {
+                    Timber.i("Excusing for absence result: An exception occurred")
+                    view?.showProgress(false)
+                    errorHandler.dispatch(it)
+                })
+        }
+    }
+
    private fun showErrorViewOnError(message: String, error: Throwable) {
        view?.run {
            if (isViewEmpty) {
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/attendance/AttendanceView.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/attendance/AttendanceView.kt
@ -10,6 +10,12 @@ interface AttendanceView : BaseView {

    val currentStackSize: Int?

+    val excuseSuccessString: String
+
+    val excuseNoSelectionString: String
+
+    val excuseActionMode: Boolean
+
    fun initView()

    fun updateData(data: List<AttendanceItem>)
@ -38,11 +44,21 @@ interface AttendanceView : BaseView {

    fun showNextButton(show: Boolean)

+    fun showExcuseButton(show: Boolean)
+
    fun showAttendanceDialog(lesson: Attendance)

    fun showDatePickerDialog(currentDate: LocalDate)

+    fun showExcuseDialog()
+
    fun openSummaryView()

+    fun startActionMode()
+
+    fun showExcuseCheckboxes(show: Boolean)
+
+    fun finishActionMode()
+
    fun popView()
 }
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/grade/GradeAverageProvider.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/grade/GradeAverageProvider.kt
@ -18,7 +18,11 @@ class GradeAverageProvider @Inject constructor(
    private val gradeSummaryRepository: GradeSummaryRepository
 ) {

-    fun getGradeAverage(student: Student, semesters: List<Semester>, selectedSemesterId: Int, forceRefresh: Boolean): Single<Map<String, Double>> {
+    private val plusModifier = preferencesRepository.gradePlusModifier
+
+    private val minusModifier = preferencesRepository.gradeMinusModifier
+
+    fun getGradeAverage(student: Student, semesters: List<Semester>, selectedSemesterId: Int, forceRefresh: Boolean): Single<List<Triple<String, Double, String>>> {
        return when (preferencesRepository.gradeAverageMode) {
            "all_year" -> getAllYearAverage(student, semesters, selectedSemesterId, forceRefresh)
            "only_one_semester" -> getOnlyOneSemesterAverage(student, semesters, selectedSemesterId, forceRefresh)
@ -26,11 +30,9 @@ class GradeAverageProvider @Inject constructor(
        }
    }

-    private fun getAllYearAverage(student: Student, semesters: List<Semester>, semesterId: Int, forceRefresh: Boolean): Single<Map<String, Double>> {
+    private fun getAllYearAverage(student: Student, semesters: List<Semester>, semesterId: Int, forceRefresh: Boolean): Single<List<Triple<String, Double, String>>> {
        val selectedSemester = semesters.single { it.semesterId == semesterId }
        val firstSemester = semesters.single { it.diaryId == selectedSemester.diaryId && it.semesterName == 1 }
-        val plusModifier = preferencesRepository.gradePlusModifier
-        val minusModifier = preferencesRepository.gradeMinusModifier

        return getAverageFromGradeSummary(selectedSemester, forceRefresh)
            .switchIfEmpty(gradeRepository.getGrades(student, selectedSemester, forceRefresh)
@ -43,30 +45,28 @@ class GradeAverageProvider @Inject constructor(
                }.map { grades ->
                    grades.map { if (student.loginMode == Sdk.Mode.SCRAPPER.name) it.changeModifier(plusModifier, minusModifier) else it }
                        .groupBy { it.subject }
-                        .mapValues { it.value.calcAverage() }
+                        .map { Triple(it.key, it.value.calcAverage(), "") }
                })
    }

-    private fun getOnlyOneSemesterAverage(student: Student, semesters: List<Semester>, semesterId: Int, forceRefresh: Boolean): Single<Map<String, Double>> {
+    private fun getOnlyOneSemesterAverage(student: Student, semesters: List<Semester>, semesterId: Int, forceRefresh: Boolean): Single<List<Triple<String, Double, String>>> {
        val selectedSemester = semesters.single { it.semesterId == semesterId }
-        val plusModifier = preferencesRepository.gradePlusModifier
-        val minusModifier = preferencesRepository.gradeMinusModifier

        return getAverageFromGradeSummary(selectedSemester, forceRefresh)
            .switchIfEmpty(gradeRepository.getGrades(student, selectedSemester, forceRefresh)
                .map { grades ->
                    grades.map { if (student.loginMode == Sdk.Mode.SCRAPPER.name) it.changeModifier(plusModifier, minusModifier) else it }
                        .groupBy { it.subject }
-                        .mapValues { it.value.calcAverage() }
+                        .map { Triple(it.key, it.value.calcAverage(), "") }
                })
    }

-    private fun getAverageFromGradeSummary(selectedSemester: Semester, forceRefresh: Boolean): Maybe<Map<String, Double>> {
+    private fun getAverageFromGradeSummary(selectedSemester: Semester, forceRefresh: Boolean): Maybe<List<Triple<String, Double, String>>> {
        return gradeSummaryRepository.getGradesSummary(selectedSemester, forceRefresh)
            .toMaybe()
            .flatMap {
                if (it.any { summary -> summary.average != .0 }) {
-                    Maybe.just(it.map { summary -> summary.subject to summary.average }.toMap())
+                    Maybe.just(it.map { summary -> Triple(summary.subject, summary.average, summary.pointsSum) })
                } else Maybe.empty()
            }.filter { !preferencesRepository.gradeAverageForceCalc }
    }
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsDialog.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsDialog.kt
@ -10,6 +10,7 @@ import io.github.wulkanowy.R
 import io.github.wulkanowy.data.db.entities.Grade
 import io.github.wulkanowy.utils.colorStringId
 import io.github.wulkanowy.utils.getBackgroundColor
+import io.github.wulkanowy.utils.getGradeColor
 import io.github.wulkanowy.utils.toFormattedString
 import kotlinx.android.synthetic.main.dialog_grade.*

@ -50,7 +51,12 @@ class GradeDetailsDialog : DialogFragment() {
        super.onActivityCreated(savedInstanceState)

        gradeDialogSubject.text = grade.subject
-        gradeDialogWeightValue.text = grade.weight
+
+        gradeDialogColorAndWeightValue.run {
+            text = context.getString(R.string.grade_weight_value, grade.weight)
+            setBackgroundResource(grade.getGradeColor())
+        }
+
        gradeDialogDateValue.text = grade.date.toFormattedString()
        gradeDialogColorValue.text = getString(grade.colorStringId)

--- a/app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsFragment.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsFragment.kt
@ -45,6 +45,9 @@ class GradeDetailsFragment : BaseFragment(), GradeDetailsView, GradeView.GradeCh
    override val averageString: String
        get() = getString(R.string.grade_average)

+    override val pointsSumString: String
+        get() = getString(R.string.grade_points_sum)
+
    override val weightString: String
        get() = getString(R.string.grade_weight)

--- a/app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsHeader.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsHeader.kt
@ -15,6 +15,7 @@ class GradeDetailsHeader(
    private val subject: String,
    private val number: String,
    private val average: String,
+    private val pointsSum: String,
    var newGrades: Int,
    private val isExpandable: Boolean
 ) : AbstractExpandableItem<GradeDetailsHeader.ViewHolder, GradeDetailsItem>() {
@ -36,6 +37,8 @@ class GradeDetailsHeader(
                maxLines = if (isExpanded) 2 else 1
            }
            gradeHeaderAverage.text = average
+            gradeHeaderPointsSum.text = pointsSum
+            gradeHeaderPointsSum.visibility = if (pointsSum.isNotEmpty()) VISIBLE else GONE
            gradeHeaderNumber.text = number
            gradeHeaderNote.visibility = if (newGrades > 0) VISIBLE else GONE
            if (newGrades > 0) gradeHeaderNote.text = newGrades.toString(10)
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsPresenter.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsPresenter.kt
@ -180,22 +180,24 @@ class GradeDetailsPresenter @Inject constructor(
        }
    }

-    private fun createGradeItems(items: Map<String, List<Grade>>, averages: Map<String, Double>): List<GradeDetailsHeader> {
+    private fun createGradeItems(items: Map<String, List<Grade>>, averages: List<Triple<String, Double, String>>): List<GradeDetailsHeader> {
        val isGradeExpandable = preferencesRepository.isGradeExpandable
        val gradeColorTheme = preferencesRepository.gradeColorTheme

        val noDescriptionString = view?.noDescriptionString.orEmpty()
        val weightString = view?.weightString.orEmpty()
+        val pointsSumString = view?.pointsSumString.orEmpty()

-        return items.map {
+        return items.map { subject ->
            GradeDetailsHeader(
-                subject = it.key,
-                average = formatAverage(averages[it.key]),
-                number = view?.getGradeNumberString(it.value.size).orEmpty(),
-                newGrades = it.value.filter { grade -> !grade.isRead }.size,
+                subject = subject.key,
+                average = formatAverage(averages.singleOrNull { subject.key == it.first }?.second),
+                pointsSum = averages.singleOrNull { subject.key == it.first }?.takeIf { it.third.isNotEmpty() }?.let { pointsSumString.format(it.third) }.orEmpty(),
+                number = view?.getGradeNumberString(subject.value.size).orEmpty(),
+                newGrades = subject.value.filter { grade -> !grade.isRead }.size,
                isExpandable = isGradeExpandable
            ).apply {
-                subItems = it.value.map { item ->
+                subItems = subject.value.map { item ->
                    GradeDetailsItem(
                        grade = item,
                        valueBgColor = item.getBackgroundColor(gradeColorTheme),
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsView.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsView.kt
@ -14,6 +14,8 @@ interface GradeDetailsView : BaseView {

    val averageString: String

+    val pointsSumString: String
+
    val weightString: String

    val noDescriptionString: String
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/grade/statistics/GradeStatisticsFragment.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/grade/statistics/GradeStatisticsFragment.kt
@ -108,6 +108,17 @@ class GradeStatisticsFragment : BaseFragment(), GradeStatisticsView, GradeView.G

            animateXY(1000, 1000)
            legend.textColor = context.getThemeAttrColor(android.R.attr.textColorPrimary)
+
+            with(axisLeft) {
+                axisMinimum = 0f
+                axisMaximum = 100f
+                labelCount = 11
+            }
+            with(axisRight) {
+                axisMinimum = 0f
+                axisMaximum = 100f
+                labelCount = 11
+            }
        }

        subjectsAdapter = ArrayAdapter(requireContext(), android.R.layout.simple_spinner_item, mutableListOf())
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/grade/statistics/GradeStatisticsPresenter.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/grade/statistics/GradeStatisticsPresenter.kt
@ -95,7 +95,7 @@ class GradeStatisticsPresenter @Inject constructor(
    }

    fun onTypeChange() {
-        val type = view?.let { it.currentType } ?: ViewType.POINTS
+        val type = view?.currentType ?: ViewType.POINTS
        Timber.i("Select grade stats semester: $type")
        disposable.clear()
        view?.run {
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/grade/summary/GradeSummaryPresenter.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/grade/summary/GradeSummaryPresenter.kt
@ -115,27 +115,26 @@ class GradeSummaryPresenter @Inject constructor(
        disposable.clear()
    }

-    private fun createGradeSummaryItemsAndHeader(gradesSummary: List<GradeSummary>, averages: Map<String, Double>)
-        : Pair<List<GradeSummaryItem>, GradeSummaryScrollableHeader> {
-        return averages.filterValues { value -> value != 0.0 }
+    private fun createGradeSummaryItemsAndHeader(gradesSummary: List<GradeSummary>, averages: List<Triple<String, Double, String>>): Pair<List<GradeSummaryItem>, GradeSummaryScrollableHeader> {
+        return averages.filter { value -> value.second != 0.0 }
            .let { filteredAverages ->
                gradesSummary.filter { !checkEmpty(it, filteredAverages) }
-                    .map {
+                    .map { gradeSummary ->
                        GradeSummaryItem(
-                            summary = it,
-                            average = formatAverage(filteredAverages.getOrElse(it.subject) { 0.0 }, "")
+                            summary = gradeSummary,
+                            average = formatAverage(filteredAverages.singleOrNull { gradeSummary.subject == it.first }?.second ?: .0, "")
                        )
                    }.let {
                        it to GradeSummaryScrollableHeader(
                            formatAverage(gradesSummary.calcAverage()),
-                            formatAverage(filteredAverages.values.average()))
+                            formatAverage(filteredAverages.map { values -> values.second }.average()))
                    }
            }
    }

-    private fun checkEmpty(gradeSummary: GradeSummary, averages: Map<String, Double>): Boolean {
+    private fun checkEmpty(gradeSummary: GradeSummary, averages: List<Triple<String, Double, String>>): Boolean {
        return gradeSummary.run {
-            finalGrade.isBlank() && predictedGrade.isBlank() && averages[subject] == null
+            finalGrade.isBlank() && predictedGrade.isBlank() && averages.singleOrNull { it.first == subject } == null
        }
    }

--- a/app/src/main/java/io/github/wulkanowy/ui/modules/main/MainActivity.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/main/MainActivity.kt
@ -36,6 +36,7 @@ import io.github.wulkanowy.utils.getThemeAttrColor
 import io.github.wulkanowy.utils.safelyPopFragments
 import io.github.wulkanowy.utils.setOnViewChangeListener
 import kotlinx.android.synthetic.main.activity_main.*
+import timber.log.Timber
 import javax.inject.Inject

 class MainActivity : BaseActivity<MainPresenter>(), MainView {
@ -167,6 +168,11 @@ class MainActivity : BaseActivity<MainPresenter>(), MainView {
        (navController.currentStack?.getOrNull(0) as? MainView.MainChildView)?.onFragmentReselected()
    }

+    override fun notifyMenuViewChanged() {
+        Timber.d("Menu view changed")
+        (navController.currentStack?.getOrNull(0) as? MainView.MainChildView)?.onFragmentChanged()
+    }
+
    fun showDialogFragment(dialog: DialogFragment) {
        navController.showDialogFragment(dialog)
    }
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/main/MainModule.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/main/MainModule.kt
@ -8,10 +8,12 @@ import dagger.android.ContributesAndroidInjector
 import io.github.wulkanowy.R
 import io.github.wulkanowy.di.scopes.PerFragment
 import io.github.wulkanowy.ui.modules.about.AboutFragment
+import io.github.wulkanowy.ui.modules.about.creator.CreatorFragment
 import io.github.wulkanowy.ui.modules.about.license.LicenseFragment
 import io.github.wulkanowy.ui.modules.about.license.LicenseModule
 import io.github.wulkanowy.ui.modules.account.AccountDialog
 import io.github.wulkanowy.ui.modules.attendance.AttendanceFragment
+import io.github.wulkanowy.ui.modules.attendance.AttendanceModule
 import io.github.wulkanowy.ui.modules.attendance.summary.AttendanceSummaryFragment
 import io.github.wulkanowy.ui.modules.exam.ExamFragment
 import io.github.wulkanowy.ui.modules.grade.GradeFragment
@ -50,7 +52,7 @@ abstract class MainModule {
    }

    @PerFragment
-    @ContributesAndroidInjector
+    @ContributesAndroidInjector(modules = [AttendanceModule::class])
    abstract fun bindAttendanceFragment(): AttendanceFragment

    @PerFragment
@ -121,6 +123,10 @@ abstract class MainModule {
    @ContributesAndroidInjector(modules = [LicenseModule::class])
    abstract fun bindLicenseFragment(): LicenseFragment

+    @PerFragment
+    @ContributesAndroidInjector()
+    abstract fun bindCreatorsFragment(): CreatorFragment
+
    @PerFragment
    @ContributesAndroidInjector(modules = [SchoolAndTeachersModule::class])
    abstract fun bindSchoolAndTeachersFragment(): SchoolAndTeachersFragment
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/main/MainPresenter.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/main/MainPresenter.kt
@ -75,6 +75,7 @@ class MainPresenter @Inject constructor(
                notifyMenuViewReselected()
                false
            } else {
+                notifyMenuViewChanged()
                switchMenuView(index)
                true
            }
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/main/MainView.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/main/MainView.kt
@ -26,6 +26,8 @@ interface MainView : BaseView {

    fun notifyMenuViewReselected()

+    fun notifyMenuViewChanged()
+
    fun setViewTitle(title: String)

    fun popView(depth: Int = 1)
@ -33,6 +35,8 @@ interface MainView : BaseView {
    interface MainChildView {

        fun onFragmentReselected()
+
+        fun onFragmentChanged() {}
    }

    interface TitledView {
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/timetable/TimetableItem.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/timetable/TimetableItem.kt
@ -15,11 +15,15 @@ import io.github.wulkanowy.utils.getThemeAttrColor
 import io.github.wulkanowy.utils.toFormattedString
 import kotlinx.android.extensions.LayoutContainer
 import kotlinx.android.synthetic.main.item_timetable.*
+import kotlinx.android.synthetic.main.item_timetable_small.*

-class TimetableItem(val lesson: Timetable) :
+class TimetableItem(val lesson: Timetable, private val showWholeClassPlan: String) :
    AbstractFlexibleItem<TimetableItem.ViewHolder>() {

-    override fun getLayoutRes() = R.layout.item_timetable
+    override fun getLayoutRes() = when {
+        showWholeClassPlan == "small" && !lesson.studentPlan -> R.layout.item_timetable_small
+        else -> R.layout.item_timetable
+    }

    override fun createViewHolder(view: View, adapter: FlexibleAdapter<IFlexible<*>>): ViewHolder {
        return ViewHolder(view, adapter)
@ -27,16 +31,29 @@ class TimetableItem(val lesson: Timetable) :

    @SuppressLint("SetTextI18n")
    override fun bindViewHolder(adapter: FlexibleAdapter<IFlexible<*>>, holder: ViewHolder, position: Int, payloads: MutableList<Any>?) {
-        updateFields(holder)
+        when (itemViewType) {
+            R.layout.item_timetable_small -> {
+                with(holder) {
+                    timetableSmallItemNumber.text = lesson.number.toString()
+                    timetableSmallItemSubject.text = lesson.subject
+                    timetableSmallItemTimeStart.text = lesson.start.toFormattedString("HH:mm")
+                    timetableSmallItemRoom.text = lesson.room
+                    timetableSmallItemTeacher.text = lesson.teacher
+                }
+            }
+            R.layout.item_timetable -> {
+                updateFields(holder)

-        with(holder) {
-            timetableItemSubject.paintFlags =
-                if (lesson.canceled) timetableItemSubject.paintFlags or Paint.STRIKE_THRU_TEXT_FLAG
-                else timetableItemSubject.paintFlags and Paint.STRIKE_THRU_TEXT_FLAG.inv()
+                with(holder) {
+                    timetableItemSubject.paintFlags =
+                        if (lesson.canceled) timetableItemSubject.paintFlags or Paint.STRIKE_THRU_TEXT_FLAG
+                        else timetableItemSubject.paintFlags and Paint.STRIKE_THRU_TEXT_FLAG.inv()
+                }
+
+                updateDescription(holder)
+                updateColors(holder)
+            }
        }
-
-        updateDescription(holder)
-        updateColors(holder)
    }

    private fun updateFields(holder: ViewHolder) {
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/timetable/TimetablePresenter.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/timetable/TimetablePresenter.kt
@ -2,6 +2,8 @@ package io.github.wulkanowy.ui.modules.timetable

 import android.annotation.SuppressLint
 import eu.davidea.flexibleadapter.items.AbstractFlexibleItem
+import io.github.wulkanowy.data.db.entities.Timetable
+import io.github.wulkanowy.data.repositories.preferences.PreferencesRepository
 import io.github.wulkanowy.data.repositories.semester.SemesterRepository
 import io.github.wulkanowy.data.repositories.student.StudentRepository
 import io.github.wulkanowy.data.repositories.timetable.TimetableRepository
@ -29,6 +31,7 @@ class TimetablePresenter @Inject constructor(
    studentRepository: StudentRepository,
    private val timetableRepository: TimetableRepository,
    private val semesterRepository: SemesterRepository,
+    private val prefRepository: PreferencesRepository,
    private val analytics: FirebaseAnalyticsHelper
 ) : BasePresenter<TimetableView>(errorHandler, studentRepository, schedulers) {

@ -134,7 +137,7 @@ class TimetablePresenter @Inject constructor(
                .flatMap { semesterRepository.getCurrentSemester(it) }
                .delay(200, MILLISECONDS)
                .flatMap { timetableRepository.getTimetable(it, currentDate, currentDate, forceRefresh) }
-                .map { items -> items.map { TimetableItem(it) } }
+                .map { createTimetableItems(it) }
                .map { items -> items.sortedBy { it.lesson.number } }
                .subscribeOn(schedulers.backgroundThread)
                .observeOn(schedulers.mainThread)
@ -172,6 +175,12 @@ class TimetablePresenter @Inject constructor(
        }
    }

+    private fun createTimetableItems(items: List<Timetable>): List<TimetableItem> {
+        return items
+            .filter { if (prefRepository.showWholeClassPlan == "no") it.studentPlan else true }
+            .map { TimetableItem(it, prefRepository.showWholeClassPlan) }
+    }
+
    private fun reloadView() {
        Timber.i("Reload timetable view with the date ${currentDate.toFormattedString()}")
        view?.apply {
--- a/app/src/main/java/io/github/wulkanowy/utils/GradeExtension.kt
+++ b/app/src/main/java/io/github/wulkanowy/utils/GradeExtension.kt
@ -24,14 +24,7 @@ fun List<GradeSummary>.calcAverage(): Double {

 fun Grade.getBackgroundColor(theme: String): Int {
    return when (theme) {
-        "grade_color" -> when (color) {
-            "000000" -> R.color.grade_black
-            "F04C4C" -> R.color.grade_red
-            "20A4F7" -> R.color.grade_blue
-            "6ECD07" -> R.color.grade_green
-            "B16CF1" -> R.color.grade_purple
-            else -> R.color.grade_material_default
-        }
+        "grade_color" -> getGradeColor()
        "material" -> when (value.toInt()) {
            6 -> R.color.grade_material_six
            5 -> R.color.grade_material_five
@ -53,6 +46,17 @@ fun Grade.getBackgroundColor(theme: String): Int {
    }
 }

+fun Grade.getGradeColor(): Int {
+    return when (color) {
+        "000000" -> R.color.grade_black
+        "F04C4C" -> R.color.grade_red
+        "20A4F7" -> R.color.grade_blue
+        "6ECD07" -> R.color.grade_green
+        "B16CF1" -> R.color.grade_purple
+        else -> R.color.grade_material_default
+    }
+}
+
 inline val Grade.colorStringId: Int
    get() {
        return when (color) {
--- a/app/src/main/java/io/github/wulkanowy/utils/NumberExtension.kt
+++ b/app/src/main/java/io/github/wulkanowy/utils/NumberExtension.kt
@ -0,0 +1,7 @@
+package io.github.wulkanowy.utils
+
+import kotlin.math.round
+
+fun Double.roundToDecimalPlaces(places: Int = 2): Double {
+    return round(this * 10 * places) / (10 * places)
+}
--- a/app/src/main/play/release-notes/pl-PL/default.txt
+++ b/app/src/main/play/release-notes/pl-PL/default.txt
@ -1,6 +1,8 @@
-Wersja 0.14.2
+Wersja 0.15.0

- naprawiliśmy błąd powodujący zatrzymanie aplikacji na urządzeniach z Androidem poniżej 5.0
- zmieniliśmy mało mówiący komunikat o niedostępnym dzienniku na taki mówiący o przerwie technicznej dziennika
+- dodaliśmy funkcję usprawiedliwiania nieobecności
+- w trybie hybrydowym i mobilnym pokazują się teraz domyślnie tylko lekcje grupy ucznia
+- odświezyliśmy wygląd okienka ze szczegółami oceny
+- dokonaliśmy kilku poprawek dla systemu punktowego: suma punktów wyświetla się teraz w szczegółach ocen, a w widoku ucznia na tle klasy wykres jest w końcu poprawnie skalowany

 Pełna lista zmian: https://github.com/wulkanowy/wulkanowy/releases
--- a/app/src/main/res/drawable-anydpi-v24/ic_stat_grade.xml
+++ b/app/src/main/res/drawable-anydpi-v24/ic_stat_grade.xml
@ -3,11 +3,7 @@
    android:height="24dp"
    android:viewportWidth="28.26087"
    android:viewportHeight="28.26087">
-    <group
-        android:translateX="1.1304348"
-        android:translateY="1.1304348">
-        <path
-            android:fillColor="#FFF"
-            android:pathData="M13 11h2v2h-2m0 2h2a2 2 0 0 0 2-2v-2a2 2 0 0 0-2-2h-2V7h4V5h-4a2 2 0 0 0-2 2v6c0 1.1 0.9 2 2 2m8 2H7V3h14m0-2H7a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2V3a2 2 0 0 0-2-2M3 5H1v16a2 2 0 0 0 2 2h16v-2H3V5z" />
-    </group>
+    <path
+        android:fillColor="#FFF"
+        android:pathData="M13 11h2v2h-2m0 2h2a2 2 0 0 0 2-2v-2a2 2 0 0 0-2-2h-2V7h4V5h-4a2 2 0 0 0-2 2v6c0 1.1 0.9 2 2 2m8 2H7V3h14m0-2H7a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2V3a2 2 0 0 0-2-2M3 5H1v16a2 2 0 0 0 2 2h16v-2H3V5z" />
 </vector>
--- a/app/src/main/res/drawable-anydpi-v24/ic_stat_luckynumber.xml
+++ b/app/src/main/res/drawable-anydpi-v24/ic_stat_luckynumber.xml
@ -3,11 +3,7 @@
    android:height="24dp"
    android:viewportWidth="26.086956"
    android:viewportHeight="26.086956">
-    <group
-        android:translateX="1.0434783"
-        android:translateY="1.0434783">
-        <path
-            android:fillColor="#FFF"
-            android:pathData="M12,11.18C15.3,8.18 17,6.64 17,4.69C17,3.19 15.75,2 14.25,2C13.39,2 12.57,2.36 12,3C11.43,2.36 10.61,2 9.69,2C8.19,2 7,3.25 7,4.75C7,6.64 8.7,8.18 12,11.18M11.18,12C8.18,8.7 6.64,7 4.69,7C3.19,7 2,8.25 2, 9.75C2,10.61 2.36,11.43 3,12C2.36,12.57 2,13.39 2,14.31C2,15.81 3.25,17 4.75,17C6.64,17 8.18,15.3 11.18,12M12.83, 12C15.82,15.3 17.36,17 19.31,17C20.81,17 22,15.75 22,14.25C22,13.39 21.64,12.57 21,12C21.64,11.43 22,10.61 22,9.69C22, 8.19 20.75,7 19.25,7C17.36,7 15.82,8.7 12.83,12M12,12.82C8.7,15.82 7,17.36 7,19.31C7,20.81 8.25,22 9.75,22C10.61,22 11.43,21.64 12,21C12.57,21.64 13.39,22 14.31,22C15.81,22 17,20.75 17,19.25C17,17.36 15.3,15.82 12,12.82Z" />
-    </group>
+    <path
+        android:fillColor="#FFF"
+        android:pathData="M12,11.18C15.3,8.18 17,6.64 17,4.69C17,3.19 15.75,2 14.25,2C13.39,2 12.57,2.36 12,3C11.43,2.36 10.61,2 9.69,2C8.19,2 7,3.25 7,4.75C7,6.64 8.7,8.18 12,11.18M11.18,12C8.18,8.7 6.64,7 4.69,7C3.19,7 2,8.25 2, 9.75C2,10.61 2.36,11.43 3,12C2.36,12.57 2,13.39 2,14.31C2,15.81 3.25,17 4.75,17C6.64,17 8.18,15.3 11.18,12M12.83, 12C15.82,15.3 17.36,17 19.31,17C20.81,17 22,15.75 22,14.25C22,13.39 21.64,12.57 21,12C21.64,11.43 22,10.61 22,9.69C22, 8.19 20.75,7 19.25,7C17.36,7 15.82,8.7 12.83,12M12,12.82C8.7,15.82 7,17.36 7,19.31C7,20.81 8.25,22 9.75,22C10.61,22 11.43,21.64 12,21C12.57,21.64 13.39,22 14.31,22C15.81,22 17,20.75 17,19.25C17,17.36 15.3,15.82 12,12.82Z" />
 </vector>
--- a/app/src/main/res/drawable-anydpi-v24/ic_stat_message.xml
+++ b/app/src/main/res/drawable-anydpi-v24/ic_stat_message.xml
@ -3,11 +3,7 @@
    android:height="24dp"
    android:viewportWidth="26.086956"
    android:viewportHeight="26.086956">
-    <group
-        android:translateX="1.0434783"
-        android:translateY="1.0434783">
-        <path
-            android:fillColor="#FFF"
-            android:pathData="M20,2L4,2c-1.1,0 -1.99,0.9 -1.99,2L2,22l4,-4h14c1.1,0 2,-0.9 2,-2L22,4c0,-1.1 -0.9,-2 -2,-2zM18,14L6,14v-2h12v2zM18,11L6,11L6,9h12v2zM18,8L6,8L6,6h12v2z" />
-    </group>
+    <path
+        android:fillColor="#FFF"
+        android:pathData="M20,2L4,2c-1.1,0 -1.99,0.9 -1.99,2L2,22l4,-4h14c1.1,0 2,-0.9 2,-2L22,4c0,-1.1 -0.9,-2 -2,-2zM18,14L6,14v-2h12v2zM18,11L6,11L6,9h12v2zM18,8L6,8L6,6h12v2z" />
 </vector>
--- a/app/src/main/res/drawable-anydpi-v24/ic_stat_note.xml
+++ b/app/src/main/res/drawable-anydpi-v24/ic_stat_note.xml
@ -3,11 +3,7 @@
    android:height="24dp"
    android:viewportWidth="26.086956"
    android:viewportHeight="26.086956">
-    <group
-        android:translateX="1.0434783"
-        android:translateY="1.0434783">
-        <path
-            android:fillColor="#FFF"
-            android:pathData="M20.2,2H19.5H18C17.1,2 16,3 16,4H8C8,3 6.9,2 6,2H4.5H3.8H2V11C2,12 3,13 4,13H6.2C6.6,15 7.9,16.7 11,17V19.1C8.8,19.3 8,20.4 8,21.7V22H16V21.7C16,20.4 15.2,19.3 13,19.1V17C16.1,16.7 17.4,15 17.8,13H20C21,13 22,12 22,11V2H20.2M4,11V4H6V6V11C5.1,11 4.3,11 4,11M20,11C19.7,11 18.9,11 18,11V6V4H20V11Z" />
-    </group>
+    <path
+        android:fillColor="#FFF"
+        android:pathData="M20.2,2H19.5H18C17.1,2 16,3 16,4H8C8,3 6.9,2 6,2H4.5H3.8H2V11C2,12 3,13 4,13H6.2C6.6,15 7.9,16.7 11,17V19.1C8.8,19.3 8,20.4 8,21.7V22H16V21.7C16,20.4 15.2,19.3 13,19.1V17C16.1,16.7 17.4,15 17.8,13H20C21,13 22,12 22,11V2H20.2M4,11V4H6V6V11C5.1,11 4.3,11 4,11M20,11C19.7,11 18.9,11 18,11V6V4H20V11Z" />
 </vector>
--- a/app/src/main/res/drawable-night/background_header_note.xml
+++ b/app/src/main/res/drawable-night/background_header_note.xml
@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <shape xmlns:android="http://schemas.android.com/apk/res/android">
-    <solid android:color="@color/colorPrimaryLight"/>
-    <corners android:radius="12dp"/>
+    <solid android:color="@color/colorPrimaryLight" />
+    <corners android:radius="12dp" />
 </shape>
--- a/app/src/main/res/drawable/background_header_note.xml
+++ b/app/src/main/res/drawable/background_header_note.xml
@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <shape xmlns:android="http://schemas.android.com/apk/res/android">
-    <solid android:color="@color/colorPrimary"/>
-    <corners android:radius="12dp"/>
-</shape>
+    <solid android:color="@color/colorPrimary" />
+    <corners android:radius="12dp" />
+</shape>
--- a/app/src/main/res/drawable/ic_about_creator.xml
+++ b/app/src/main/res/drawable/ic_about_creator.xml
@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+  <path
+      android:fillColor="#FFF"
+      android:pathData="M9,13.75c-2.34,0 -7,1.17 -7,3.5L2,19h14v-1.75c0,-2.33 -4.66,-3.5 -7,-3.5zM4.34,17c0.84,-0.58 2.87,-1.25 4.66,-1.25s3.82,0.67 4.66,1.25L4.34,17zM9,12c1.93,0 3.5,-1.57 3.5,-3.5S10.93,5 9,5 5.5,6.57 5.5,8.5 7.07,12 9,12zM9,7c0.83,0 1.5,0.67 1.5,1.5S9.83,10 9,10s-1.5,-0.67 -1.5,-1.5S8.17,7 9,7zM16.04,13.81c1.16,0.84 1.96,1.96 1.96,3.44L18,19h4v-1.75c0,-2.02 -3.5,-3.17 -5.96,-3.44zM15,12c1.93,0 3.5,-1.57 3.5,-3.5S16.93,5 15,5c-0.54,0 -1.04,0.13 -1.5,0.35 0.63,0.89 1,1.98 1,3.15s-0.37,2.26 -1,3.15c0.46,0.22 0.96,0.35 1.5,0.35z"/>
+</vector>
--- a/app/src/main/res/drawable/ic_all_done.xml
+++ b/app/src/main/res/drawable/ic_all_done.xml
@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:tint="#FFFFFF"
+    android:viewportWidth="24.0"
+    android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M9,16.2L4.8,12l-1.4,1.4L9,19 21,7l-1.4,-1.4L9,16.2z" />
+</vector>
--- a/app/src/main/res/drawable/ic_all_done_all.xml
+++ b/app/src/main/res/drawable/ic_all_done_all.xml
@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:tint="#FFFFFF"
+    android:viewportWidth="24.0"
+    android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M18,7l-1.41,-1.41 -6.34,6.34 1.41,1.41L18,7zM22.24,5.59L11.66,16.17 7.48,12l-1.41,1.41L11.66,19l12,-12 -1.42,-1.41zM0.41,13.41L6,19l1.41,-1.41L1.83,12 0.41,13.41z" />
+</vector>
--- a/app/src/main/res/drawable/ic_excuse_denied.xml
+++ b/app/src/main/res/drawable/ic_excuse_denied.xml
@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:tint="#FFFFFF"
+    android:viewportWidth="24.0"
+    android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M7,11v2h10v-2L7,11zM12,2C6.48,2 2,6.48 2,12s4.48,10 10,10 10,-4.48 10,-10S17.52,2 12,2zM12,20c-4.41,0 -8,-3.59 -8,-8s3.59,-8 8,-8 8,3.59 8,8 -3.59,8 -8,8z" />
+</vector>
--- a/app/src/main/res/drawable/ic_excuse_waiting.xml
+++ b/app/src/main/res/drawable/ic_excuse_waiting.xml
@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:tint="#FFFFFF"
+    android:viewportWidth="24.0"
+    android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M11.99,2C6.47,2 2,6.48 2,12s4.47,10 9.99,10C17.52,22 22,17.52 22,12S17.52,2 11.99,2zM12,20c-4.42,0 -8,-3.58 -8,-8s3.58,-8 8,-8 8,3.58 8,8 -3.58,8 -8,8zM12.5,7H11v6l5.25,3.15 0.75,-1.23 -4.5,-2.67z" />
+</vector>
--- a/app/src/main/res/drawable/ic_main_grade.xml
+++ b/app/src/main/res/drawable/ic_main_grade.xml
@ -1,7 +1,9 @@
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:height="24dp"
    android:width="24dp"
+    android:height="24dp"
    android:viewportWidth="24"
    android:viewportHeight="24">
-    <path android:fillColor="#FFF" android:pathData="M13,11H15V13H13M13,15H15A2,2 0 0,0 17,13V11C17,9.89 16.1,9 15,9H13V7H17V5H13A2,2 0 0,0 11,7V13C11,14.11 11.9,15 13,15M21,17H7V3H21M21,1H7A2,2 0 0,0 5,3V17A2,2 0 0,0 7,19H21A2,2 0 0,0 23,17V3A2,2 0 0,0 21,1M3,5H1V21A2,2 0 0,0 3,23H19V21H3V5Z" />
+    <path
+        android:fillColor="#FFF"
+        android:pathData="M13,11H15V13H13M13,15H15A2,2 0 0,0 17,13V11C17,9.89 16.1,9 15,9H13V7H17V5H13A2,2 0 0,0 11,7V13C11,14.11 11.9,15 13,15M21,17H7V3H21M21,1H7A2,2 0 0,0 5,3V17A2,2 0 0,0 7,19H21A2,2 0 0,0 23,17V3A2,2 0 0,0 21,1M3,5H1V21A2,2 0 0,0 3,23H19V21H3V5Z" />
 </vector>
--- a/app/src/main/res/drawable/ic_main_more.xml
+++ b/app/src/main/res/drawable/ic_main_more.xml
@ -1,7 +1,9 @@
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:height="24dp"
    android:width="24dp"
+    android:height="24dp"
    android:viewportWidth="24"
    android:viewportHeight="24">
-    <path android:fillColor="#FFF" android:pathData="M4,5H20V7H4V5M4,9H20V11H4V9M4,13H20V15H4V13M4,17H14V19H4V17Z" />
+    <path
+        android:fillColor="#FFF"
+        android:pathData="M4,5H20V7H4V5M4,9H20V11H4V9M4,13H20V15H4V13M4,17H14V19H4V17Z" />
 </vector>
--- a/app/src/main/res/layout/dialog_excuse.xml
+++ b/app/src/main/res/layout/dialog_excuse.xml
@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="vertical"
+    android:padding="20dp">
+
+    <com.google.android.material.textfield.TextInputLayout
+        style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content">
+
+        <com.google.android.material.textfield.TextInputEditText
+            android:id="@+id/excuseReason"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:hint="@string/attendance_excuse_dialog_reason" />
+
+        <requestFocus />
+    </com.google.android.material.textfield.TextInputLayout>
+</LinearLayout>
--- a/app/src/main/res/layout/dialog_grade.xml
+++ b/app/src/main/res/layout/dialog_grade.xml
@ -17,90 +17,84 @@
            android:padding="20dp"
            tools:ignore="UselessParent">

-            <TextView
-                android:id="@+id/gradeDialogValue"
-                android:layout_width="80dp"
-                android:layout_height="80dp"
+            <LinearLayout
+                android:id="@+id/gradeDialogValueLayout"
+                android:layout_width="86dp"
+                android:layout_height="match_parent"
                android:layout_alignParentTop="true"
                android:layout_alignParentEnd="true"
                android:layout_alignParentRight="true"
                android:layout_gravity="end"
-                android:background="@color/grade_material_default"
-                android:gravity="center"
-                android:textColor="@android:color/white"
-                android:textSize="30sp"
-                tools:text="6" />
+                android:orientation="vertical">

-            <TextView
-                android:id="@+id/gradeDialogSubject"
-                android:layout_width="match_parent"
+                <TextView
+                    android:id="@+id/gradeDialogValue"
+                    android:layout_width="match_parent"
+                    android:layout_height="86dp"
+                    android:background="@color/grade_material_default"
+                    android:gravity="center"
+                    android:textColor="@android:color/white"
+                    android:textSize="30sp"
+                    tools:text="6" />
+
+                <TextView
+                    android:id="@+id/gradeDialogColorAndWeightValue"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_gravity="end"
+                    android:layout_marginTop="2dp"
+                    android:background="@color/grade_black"
+                    android:gravity="center"
+                    android:maxLines="2"
+                    android:minHeight="32dp"
+                    android:textColor="@android:color/white"
+                    android:textIsSelectable="true"
+                    android:textSize="14sp"
+                    tools:text="Waga: 1.00" />
+            </LinearLayout>
+
+            <LinearLayout
+                android:id="@+id/gradeDialogHeader"
+                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
+                android:layout_marginEnd="12dp"
+                android:layout_marginRight="12dp"
+                android:layout_toStartOf="@+id/gradeDialogValueLayout"
+                android:layout_toLeftOf="@+id/gradeDialogValueLayout"
                android:layout_alignParentStart="true"
                android:layout_alignParentLeft="true"
                android:layout_alignParentTop="true"
-                android:layout_gravity="start"
-                android:layout_marginEnd="90dp"
-                android:layout_marginRight="90dp"
-                android:layout_marginBottom="10dp"
                android:gravity="center_vertical"
-                android:maxLines="5"
-                android:minHeight="80dp"
-                android:minLines="2"
-                android:text="@string/grade_header"
-                android:textIsSelectable="true"
-                android:textSize="20sp" />
+                android:minHeight="120dp"
+                android:orientation="vertical">

-            <TextView
-                android:id="@+id/gradeDialogDescription"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:layout_below="@+id/gradeDialogSubject"
-                android:layout_alignParentStart="true"
-                android:layout_alignParentLeft="true"
-                android:text="@string/all_description"
-                android:textIsSelectable="true"
-                android:textSize="17sp" />
+                <TextView
+                    android:id="@+id/gradeDialogSubject"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_gravity="start"
+                    android:gravity="center_vertical"
+                    android:maxLines="2"
+                    android:text="@string/grade_header"
+                    android:textIsSelectable="true"
+                    android:textSize="20sp" />

-            <TextView
-                android:id="@+id/gradeDialogDescriptionValue"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:layout_below="@+id/gradeDialogDescription"
-                android:layout_alignParentStart="true"
-                android:layout_alignParentLeft="true"
-                android:layout_marginTop="3dp"
-                android:text="@string/all_no_description"
-                android:textIsSelectable="true"
-                android:textSize="12sp" />
-
-            <TextView
-                android:id="@+id/gradeDialogWeight"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:layout_below="@+id/gradeDialogDescriptionValue"
-                android:layout_alignParentStart="true"
-                android:layout_alignParentLeft="true"
-                android:layout_marginTop="10dp"
-                android:text="@string/grade_weight"
-                android:textSize="17sp" />
-
-            <TextView
-                android:id="@+id/gradeDialogWeightValue"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:layout_below="@+id/gradeDialogWeight"
-                android:layout_alignParentStart="true"
-                android:layout_alignParentLeft="true"
-                android:layout_marginTop="3dp"
-                android:text="@string/grade_weight"
-                android:textIsSelectable="true"
-                android:textSize="12sp" />
+                <TextView
+                    android:id="@+id/gradeDialogDescriptionValue"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_marginTop="4dp"
+                    android:text="@string/all_no_description"
+                    android:textColor="?android:textColorSecondary"
+                    android:textIsSelectable="true"
+                    android:textSize="16sp" />
+            </LinearLayout>

            <TextView
                android:id="@+id/gradeDialogComment"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
-                android:layout_below="@+id/gradeDialogWeightValue"
+                android:layout_below="@+id/gradeDialogHeader"
                android:layout_alignParentStart="true"
                android:layout_alignParentLeft="true"
                android:layout_marginTop="10dp"
--- a/app/src/main/res/layout/fragment_attendance.xml
+++ b/app/src/main/res/layout/fragment_attendance.xml
@ -56,6 +56,20 @@
                android:textSize="20sp" />
        </LinearLayout>

+        <com.google.android.material.floatingactionbutton.ExtendedFloatingActionButton
+            android:id="@+id/attendanceExcuseButton"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="bottom|end"
+            android:layout_margin="16dp"
+            android:clickable="true"
+            android:focusable="true"
+            android:text="@string/attendance_excuse_title"
+            android:tint="?colorOnSecondary"
+            android:visibility="gone"
+            app:icon="@drawable/ic_all_done_all"
+            tools:visibility="visible" />
+
        <LinearLayout
            android:id="@+id/attendanceError"
            android:layout_width="match_parent"
--- a/app/src/main/res/layout/fragment_creator.xml
+++ b/app/src/main/res/layout/fragment_creator.xml
@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+
+    <me.zhanghai.android.materialprogressbar.MaterialProgressBar
+        android:id="@+id/creatorProgress"
+        style="@style/Widget.MaterialProgressBar.ProgressBar"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center"
+        android:indeterminate="true" />
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:orientation="vertical">
+
+        <androidx.recyclerview.widget.RecyclerView
+            android:id="@+id/creatorRecycler"
+            android:layout_width="match_parent"
+            android:layout_height="0dp"
+            android:layout_weight="1" />
+
+        <com.google.android.material.button.MaterialButton
+            android:id="@+id/creatorSeeMore"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            style="@style/Widget.MaterialComponents.Button.OutlinedButton"
+            android:layout_marginTop="8dp"
+            android:layout_marginBottom="8dp"
+            android:layout_marginLeft="32dp"
+            android:layout_marginRight="32dp"
+            android:text="@string/creator_see_more" />
+    </LinearLayout>
+</FrameLayout>
--- a/app/src/main/res/layout/fragment_login_advanced.xml
+++ b/app/src/main/res/layout/fragment_login_advanced.xml
@ -101,7 +101,7 @@
                    android:id="@+id/loginFormName"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
-                    android:autofillHints="emailAddress"
+                    android:autofillHints="username|emailAddress"
                    android:inputType="textEmailAddress"
                    android:maxLines="1"
                    tools:targetApi="o" />
@ -121,6 +121,7 @@
                android:layout_marginRight="24dp"
                android:hint="@string/login_password_hint"
                app:errorEnabled="true"
+                app:errorIconDrawable="@null"
                app:layout_constraintBottom_toTopOf="@+id/loginFormHostLayout"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent"
@ -216,6 +217,7 @@
                    android:layout_height="wrap_content"
                    android:imeActionLabel="@string/login_sign_in"
                    android:imeOptions="actionDone"
+                    android:importantForAutofill="no"
                    android:inputType="textAutoComplete|textNoSuggestions"
                    android:maxLines="1"
                    tools:ignore="LabelFor" />
--- a/app/src/main/res/layout/fragment_login_form.xml
+++ b/app/src/main/res/layout/fragment_login_form.xml
@ -133,7 +133,7 @@
                    android:id="@+id/loginFormName"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
-                    android:autofillHints="emailAddress"
+                    android:autofillHints="username|emailAddress"
                    android:inputType="textEmailAddress"
                    android:maxLines="1"
                    tools:targetApi="o" />
@ -153,6 +153,7 @@
                android:layout_marginRight="24dp"
                android:hint="@string/login_password_hint"
                app:errorEnabled="true"
+                app:errorIconDrawable="@null"
                app:layout_constraintBottom_toTopOf="@+id/loginFormHostLayout"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent"
--- a/app/src/main/res/layout/header_grade_details.xml
+++ b/app/src/main/res/layout/header_grade_details.xml
@ -1,17 +1,16 @@
 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/gradeHeaderContainer"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="?selectableItemBackground"
+    android:paddingStart="16dp"
    android:paddingLeft="16dp"
    android:paddingTop="10dp"
+    android:paddingEnd="12dp"
    android:paddingRight="14dp"
    android:paddingBottom="10dp"
-    tools:context=".ui.modules.grade.details.GradeDetailsHeader"
-    android:paddingEnd="12dp"
-    android:paddingStart="16dp">
+    tools:context=".ui.modules.grade.details.GradeDetailsHeader">

    <TextView
        android:id="@+id/gradeHeaderSubject"
@ -37,10 +36,10 @@
        tools:text="Average: 6,00" />

    <TextView
-        android:id="@+id/gradeHeaderNumber"
+        android:id="@+id/gradeHeaderPointsSum"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
-        android:layout_below="@id/gradeHeaderSubject"
+        android:layout_below="@+id/gradeHeaderSubject"
        android:layout_marginStart="10dp"
        android:layout_marginLeft="10dp"
        android:layout_marginTop="5dp"
@ -48,20 +47,34 @@
        android:layout_toRightOf="@+id/gradeHeaderAverage"
        android:textColor="?android:textColorSecondary"
        android:textSize="12sp"
+        tools:text="Points: 123/200 (61,5%)" />
+
+    <TextView
+        android:id="@+id/gradeHeaderNumber"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_below="@id/gradeHeaderSubject"
+        android:layout_marginStart="10dp"
+        android:layout_marginLeft="10dp"
+        android:layout_marginTop="5dp"
+        android:layout_toEndOf="@+id/gradeHeaderPointsSum"
+        android:layout_toRightOf="@+id/gradeHeaderPointsSum"
+        android:textColor="?android:textColorSecondary"
+        android:textSize="12sp"
        tools:text="12 grades" />

    <TextView
        android:id="@+id/gradeHeaderNote"
        android:layout_width="wrap_content"
-        android:minWidth="20dp"
        android:layout_height="20dp"
-        android:paddingLeft="5dp"
-        android:paddingRight="5dp"
        android:layout_alignParentEnd="true"
        android:layout_alignParentRight="true"
-        android:gravity="center"
        android:layout_marginTop="10dp"
        android:background="@drawable/background_header_note"
+        android:gravity="center"
+        android:minWidth="20dp"
+        android:paddingLeft="5dp"
+        android:paddingRight="5dp"
        android:textColor="?colorOnPrimary"
        android:textSize="14sp"
        tools:text="255" />
--- a/app/src/main/res/layout/item_attendance.xml
+++ b/app/src/main/res/layout/item_attendance.xml
@ -13,16 +13,40 @@
    android:paddingBottom="7dp"
    tools:context=".ui.modules.attendance.AttendanceItem">

-    <TextView
-        android:id="@+id/attendanceItemNumber"
+    <LinearLayout
+        android:id="@+id/attendanceItemNumberContainer"
        android:layout_width="40dp"
        android:layout_height="40dp"
-        android:layout_centerVertical="true"
        android:gravity="center"
-        android:includeFontPadding="false"
-        android:maxLength="2"
-        android:textSize="32sp"
-        tools:text="5" />
+        android:orientation="vertical">
+
+        <TextView
+            android:id="@+id/attendanceItemNumber"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:gravity="center"
+            android:includeFontPadding="false"
+            android:maxLength="2"
+            android:textSize="32sp"
+            android:visibility="gone"
+            tools:visibility="visible"
+            tools:text="5" />
+
+        <com.google.android.material.checkbox.MaterialCheckBox
+            android:id="@+id/attendanceItemExcuseCheckbox"
+            android:layout_width="32dp"
+            android:layout_height="32dp"
+            android:text="@null"
+            android:visibility="gone" />
+
+        <ImageView
+            android:id="@+id/attendanceItemExcuseInfo"
+            android:layout_width="32dp"
+            android:layout_height="32dp"
+            android:visibility="gone"
+            app:srcCompat="@drawable/ic_excuse_waiting"
+            app:tint="?attr/colorOnSurface" />
+    </LinearLayout>

    <TextView
        android:id="@+id/attendanceItemSubject"
@ -35,8 +59,8 @@
        android:layout_marginRight="40dp"
        android:layout_toStartOf="@id/attendanceItemAlert"
        android:layout_toLeftOf="@id/attendanceItemAlert"
-        android:layout_toEndOf="@+id/attendanceItemNumber"
-        android:layout_toRightOf="@+id/attendanceItemNumber"
+        android:layout_toEndOf="@+id/attendanceItemNumberContainer"
+        android:layout_toRightOf="@+id/attendanceItemNumberContainer"
        android:ellipsize="end"
        android:maxLines="1"
        android:textSize="17sp"
@ -48,7 +72,7 @@
        android:layout_height="wrap_content"
        android:layout_alignStart="@id/attendanceItemSubject"
        android:layout_alignLeft="@id/attendanceItemSubject"
-        android:layout_alignBottom="@+id/attendanceItemNumber"
+        android:layout_alignBottom="@+id/attendanceItemNumberContainer"
        android:maxLines="1"
        android:textColor="?android:textColorSecondary"
        android:textSize="12sp"
--- a/app/src/main/res/layout/item_creator.xml
+++ b/app/src/main/res/layout/item_creator.xml
@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:minHeight="56dp"
+    android:background="?selectableItemBackground"
+    android:orientation="vertical">
+
+    <ImageView
+        android:id="@+id/creatorItemAvatar"
+        android:layout_width="40dp"
+        android:layout_height="40dp"
+        android:contentDescription="@string/creator_avatar_description"
+        android:layout_marginLeft="16dp"
+        android:layout_marginStart="16dp"
+        android:layout_marginTop="8dp"
+        android:layout_marginBottom="8dp"/>
+
+    <TextView
+        android:id="@+id/creatorItemName"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:gravity="bottom"
+        android:textSize="16sp"
+        tools:text="@tools:sample/lorem"
+        android:layout_centerVertical="true"
+        android:layout_toEndOf="@id/creatorItemAvatar"
+        android:layout_toRightOf="@id/creatorItemAvatar"
+        android:layout_marginLeft="16dp"
+        android:layout_marginStart="16dp"
+        android:layout_marginRight="16dp"
+        android:layout_marginEnd="16dp" />
+</RelativeLayout>
--- a/app/src/main/res/layout/item_timetable_small.xml
+++ b/app/src/main/res/layout/item_timetable_small.xml
@ -0,0 +1,81 @@
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:background="?selectableItemBackground"
+    tools:context=".ui.modules.timetable.TimetableItem">
+
+    <TextView
+        android:id="@+id/timetableSmallItemNumber"
+        android:layout_width="40dp"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="8dp"
+        android:layout_marginLeft="8dp"
+        android:gravity="center"
+        android:maxLength="2"
+        android:textColor="?android:textColorPrimary"
+        android:textSize="15sp"
+        tools:text="5" />
+
+    <TextView
+        android:id="@+id/timetableSmallItemTimeStart"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_alignTop="@id/timetableSmallItemNumber"
+        android:layout_marginStart="8dp"
+        android:layout_marginLeft="8dp"
+        android:layout_toEndOf="@id/timetableSmallItemNumber"
+        android:layout_toRightOf="@id/timetableSmallItemNumber"
+        android:maxLines="1"
+        android:textColor="?android:textColorSecondary"
+        android:textSize="15sp"
+        tools:text="11:11" />
+
+    <TextView
+        android:id="@+id/timetableSmallItemSubject"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_alignParentTop="true"
+        android:layout_marginStart="10dp"
+        android:layout_marginLeft="10dp"
+        android:layout_marginEnd="10dp"
+        android:layout_marginRight="10dp"
+        android:layout_toEndOf="@+id/timetableSmallItemTimeStart"
+        android:layout_toRightOf="@+id/timetableSmallItemTimeStart"
+        android:ellipsize="end"
+        android:maxLines="1"
+        android:textColor="?android:textColorPrimary"
+        android:textSize="15sp"
+        tools:text="Sieci komputerowe" />
+
+
+    <TextView
+        android:id="@+id/timetableSmallItemRoom"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="10dp"
+        android:layout_marginLeft="10dp"
+        android:layout_toEndOf="@+id/timetableSmallItemSubject"
+        android:layout_toRightOf="@+id/timetableSmallItemSubject"
+        android:maxLines="1"
+        android:textColor="?android:textColorSecondary"
+        android:textSize="15sp"
+        tools:text="22" />
+
+    <TextView
+        android:id="@+id/timetableSmallItemTeacher"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="10dp"
+        android:layout_marginLeft="10dp"
+        android:layout_marginEnd="16dp"
+        android:layout_marginRight="16dp"
+        android:layout_toEndOf="@id/timetableSmallItemRoom"
+        android:layout_toRightOf="@id/timetableSmallItemRoom"
+        android:ellipsize="end"
+        android:maxLines="1"
+        android:textColor="?android:textColorSecondary"
+        android:textSize="15sp"
+        tools:text="Agata Kowalska - Błaszczyk" />
+
+</RelativeLayout>
--- a/app/src/main/res/menu/context_menu_excuse.xml
+++ b/app/src/main/res/menu/context_menu_excuse.xml
@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+
+    <item
+        android:id="@+id/excuseMenuSubmit"
+        android:icon="@drawable/ic_all_done"
+        android:title="@string/attendance_excuse_dialog_submit"
+        app:iconTint="@color/material_on_surface_emphasis_medium"
+        app:showAsAction="always" />
+</menu>
--- a/app/src/main/res/values-pl/preferences_values.xml
+++ b/app/src/main/res/values-pl/preferences_values.xml
@ -41,4 +41,10 @@
        <item>Średnia ocen z 2 semestru</item>
        <item>Średnia ocen z całego roku</item>
    </string-array>
+
+    <string-array name="timetable_show_whole_class_entries">
+        <item>Nie pokazuj</item>
+        <item>Pokazuj wszystkie</item>
+        <item>Pokazuj pomniejszone</item>
+    </string-array>
 </resources>
--- a/app/src/main/res/values-pl/strings.xml
+++ b/app/src/main/res/values-pl/strings.xml
@ -12,6 +12,7 @@
    <string name="settings_title">Ustawienia</string>
    <string name="more_title">Więcej</string>
    <string name="about_title">O aplikacji</string>
+    <string name="creators_title">Twórcy</string>
    <string name="license_title">Licencje</string>
    <string name="message_title">Wiadomości</string>
    <string name="send_message_title">Nowa wiadomość</string>
@ -66,10 +67,12 @@
    <string name="grade_switch_semester">Zmień semestr</string>
    <string name="grade_no_items">Brak ocen</string>
    <string name="grade_weight">Waga</string>
+    <string name="grade_weight_value">Waga: %s</string>
    <string name="grade_comment">Komentarz</string>
    <string name="grade_no_new_items">Brak nowych ocen</string>
    <string name="grade_number_new_items">Ilość nowych ocen: %1$d</string>
    <string name="grade_average">Średnia: %1$.2f</string>
+    <string name="grade_points_sum">Punkty: %s</string>
    <string name="grade_no_average">Brak średniej</string>
    <string name="grade_predicted">Przewidywana: %1$s</string>
    <string name="grade_final">Końcowa: %1$s</string>
@ -139,6 +142,11 @@
        <item quantity="many">%1$d nieobecności</item>
        <item quantity="other">%1$d nieobecności</item>
    </plurals>
+    <string name="attendance_excuse_dialog_reason">Powód nieobecności (opcjonalny)</string>
+    <string name="attendance_excuse_dialog_submit">Wyślij</string>
+    <string name="attendance_excuse_success">Usprawiedliwiono pomyślnie!</string>
+    <string name="attendance_excuse_no_selection">Musisz wybrać co najmniej jedną nieobecność!</string>
+    <string name="attendance_excuse_title">Usprawiedliw</string>


    <!--Attendance summary-->
@ -268,6 +276,8 @@

    <!--About-->
    <string name="about_version">Wersja aplikacji</string>
+    <string name="about_creator">Twórcy</string>
+    <string name="about_creator_summary">Lista programistów Wulkanowego</string>
    <string name="about_feedback">Zgłoś błąd</string>
    <string name="about_feedback_summary">Wyślij zgłoszenie o błędzie poprzez e-maila</string>
    <string name="about_faq">FAQ</string>
@ -286,6 +296,11 @@
    <string name="license_dialog_title">Licencja</string>


+    <!--Creators-->
+    <string name="creator_avatar_description">Awatar</string>
+    <string name="creator_see_more">Zobacz więcej na GitHub</string>
+
+
    <!--Generic-->
    <string name="all_content">Treść</string>
    <string name="all_retry">Ponów</string>
@ -365,4 +380,5 @@
    <string name="error_unknown">Wystąpił nieoczekiwany błąd</string>
    <string name="error_feature_disabled">Funkcja wyłączona przez szkołę</string>
    <string name="error_feature_not_available">Funkcja niedostępna w tym trybie</string>
+    <string name="pref_view_timetable_show_whole_class">Pokazuj lekcje całej klasy</string>
 </resources>
--- a/Show More
+++ b/Show More