[Architecture] Implement dagger for homework

app/build.gradle

@@ -1,6 +1,7 @@
 apply plugin: 'com.android.application'
 apply plugin: 'kotlin-android-extensions'
 apply plugin: 'kotlin-android'
+apply plugin: 'kotlin-kapt'
 apply plugin: 'com.google.gms.google-services'
 apply plugin: 'io.fabric'
 
@@ -91,7 +92,7 @@ tasks.whenTaskAdded { task ->
 dependencies {
     implementation fileTree(include: ['*.jar'], dir: 'libs')
 
-    annotationProcessor "androidx.room:room-compiler:${versions.room}"
+    kapt "androidx.room:room-compiler:${versions.room}"
     debugImplementation "com.amitshekhar.android:debug-db:1.0.5"
 
     implementation "android.arch.navigation:navigation-fragment-ktx:${versions.navigationFragment}"
@@ -164,6 +165,11 @@ dependencies {
     implementation "io.github.wulkanowy:signer-android:0.1.1"
 
     implementation "androidx.work:work-runtime-ktx:${versions.work}"
+
+    api "com.google.dagger:dagger:${versions.dagger}"
+    api "com.google.dagger:dagger-android-support:${versions.dagger}"
+    kapt "com.google.dagger:dagger-compiler:${versions.dagger}"
+    kapt "com.google.dagger:dagger-android-processor:${versions.dagger}"
 }
 repositories {
     mavenCentral()

app/src/main/java/pl/szczodrzynski/edziennik/App.java

@@ -22,6 +22,7 @@ import android.util.Pair;
 
 import androidx.annotation.RequiresApi;
 import androidx.appcompat.app.AppCompatDelegate;
+import androidx.multidex.MultiDex;
 import androidx.work.Configuration;
 
 import com.chuckerteam.chucker.api.ChuckerCollector;
@@ -59,6 +60,8 @@ import javax.net.ssl.TrustManagerFactory;
 import javax.net.ssl.X509TrustManager;
 
 import cat.ereza.customactivityoncrash.config.CaocConfig;
+import dagger.android.AndroidInjector;
+import dagger.android.support.DaggerApplication;
 import im.wangchao.mhttp.MHttp;
 import im.wangchao.mhttp.internal.cookie.PersistentCookieJar;
 import im.wangchao.mhttp.internal.cookie.cache.SetCookieCache;
@@ -77,6 +80,7 @@ import pl.szczodrzynski.edziennik.data.db.modules.debuglog.DebugLog;
 import pl.szczodrzynski.edziennik.data.db.modules.login.LoginStore;
 import pl.szczodrzynski.edziennik.data.db.modules.profiles.Profile;
 import pl.szczodrzynski.edziennik.data.db.modules.profiles.ProfileFull;
+import pl.szczodrzynski.edziennik.di.DaggerAppComponent;
 import pl.szczodrzynski.edziennik.network.NetworkUtils;
 import pl.szczodrzynski.edziennik.network.TLSSocketFactory;
 import pl.szczodrzynski.edziennik.sync.SyncWorker;
@@ -90,7 +94,7 @@ import static pl.szczodrzynski.edziennik.data.db.modules.login.LoginStore.LOGIN_
 import static pl.szczodrzynski.edziennik.data.db.modules.login.LoginStore.LOGIN_TYPE_MOBIDZIENNIK;
 import static pl.szczodrzynski.edziennik.data.db.modules.login.LoginStore.LOGIN_TYPE_VULCAN;
 
-public class App extends androidx.multidex.MultiDexApplication implements Configuration.Provider {
+public class App extends DaggerApplication implements Configuration.Provider {
     private static final String TAG = "App";
     public static int profileId = -1;
     private Context mContext;
@@ -181,6 +185,17 @@ public class App extends androidx.multidex.MultiDexApplication implements Config
         return Icon.createWithBitmap(bitmap);
     }
 
+    @Override
+    protected void attachBaseContext(Context base) {
+        super.attachBaseContext(base);
+        MultiDex.install(this);
+    }
+
+    @Override
+    protected AndroidInjector<? extends DaggerApplication> applicationInjector() {
+        return DaggerAppComponent.factory().create(this);
+    }
+
     @Override
     public void onCreate() {
         super.onCreate();
@@ -543,6 +558,7 @@ public class App extends androidx.multidex.MultiDexApplication implements Config
             appConfig = new AppConfig(this);
         }
     }
+
     public void saveConfig()
     {
         try {
@@ -724,5 +740,4 @@ public class App extends androidx.multidex.MultiDexApplication implements Config
             devMode = false;
         }
     }
-
 }

app/src/main/java/pl/szczodrzynski/edziennik/MainActivity.kt

@@ -9,7 +9,6 @@ import android.os.*
 import android.view.Gravity
 import android.view.View
 import android.widget.Toast
-import androidx.appcompat.app.AppCompatActivity
 import androidx.appcompat.widget.PopupMenu
 import androidx.core.graphics.ColorUtils
 import androidx.lifecycle.Observer
@@ -26,6 +25,7 @@ import com.mikepenz.materialdrawer.model.ProfileDrawerItem
 import com.mikepenz.materialdrawer.model.ProfileSettingDrawerItem
 import com.mikepenz.materialdrawer.model.interfaces.IDrawerItem
 import com.mikepenz.materialdrawer.model.interfaces.IProfile
+import dagger.android.support.DaggerAppCompatActivity
 import org.greenrobot.eventbus.EventBus
 import org.greenrobot.eventbus.Subscribe
 import org.greenrobot.eventbus.ThreadMode
@@ -78,7 +78,7 @@ import java.io.IOException
 import java.util.*
 import kotlin.math.roundToInt
 
-class MainActivity : AppCompatActivity() {
+class MainActivity : DaggerAppCompatActivity() {
     companion object {
 
         var useOldMessages = false
@@ -340,7 +340,7 @@ class MainActivity : AppCompatActivity() {
         if (!profileListEmpty) {
             handleIntent(intent?.extras)
         }
-        app.db.profileDao().getAllFull().observe(this, Observer { profiles ->
+        app.db.profileDao().allFull.observe(this, Observer { profiles ->
             // TODO fix weird -1 profiles ???
             profiles.removeAll { it.id < 0 }
             drawer.setProfileList(profiles)
@@ -357,7 +357,7 @@ class MainActivity : AppCompatActivity() {
         if (app.profile != null)
             setDrawerItems()
 
-        app.db.metadataDao().getUnreadCounts().observe(this, Observer { unreadCounters ->
+        app.db.metadataDao().unreadCounts.observe(this, Observer { unreadCounters ->
             unreadCounters.map {
                 it.type = it.thingType
             }

app/src/main/java/pl/szczodrzynski/edziennik/data/db/AppDb.java

@@ -10,6 +10,8 @@ import androidx.room.TypeConverters;
 import androidx.room.migration.Migration;
 import androidx.sqlite.db.SupportSQLiteDatabase;
 
+import javax.inject.Singleton;
+
 import pl.szczodrzynski.edziennik.data.db.converters.ConverterDate;
 import pl.szczodrzynski.edziennik.data.db.converters.ConverterDateInt;
 import pl.szczodrzynski.edziennik.data.db.converters.ConverterJsonObject;
@@ -74,6 +76,7 @@ import pl.szczodrzynski.edziennik.data.db.modules.teams.Team;
 import pl.szczodrzynski.edziennik.data.db.modules.teams.TeamDao;
 import pl.szczodrzynski.edziennik.utils.models.Date;
 
+@Singleton
 @Database(entities = {
         Grade.class,
         //GradeCategory.class,
@@ -114,33 +117,60 @@ import pl.szczodrzynski.edziennik.utils.models.Date;
 public abstract class AppDb extends RoomDatabase {
 
     public abstract GradeDao gradeDao();
+
     //public abstract GradeCategoryDao gradeCategoryDao();
     public abstract TeacherDao teacherDao();
+
     public abstract TeacherAbsenceDao teacherAbsenceDao();
+
     public abstract TeacherAbsenceTypeDao teacherAbsenceTypeDao();
+
     public abstract SubjectDao subjectDao();
+
     public abstract NoticeDao noticeDao();
+
     public abstract LessonDao lessonDao();
+
     public abstract LessonChangeDao lessonChangeDao();
+
     public abstract TeamDao teamDao();
+
     public abstract AttendanceDao attendanceDao();
+
     public abstract EventDao eventDao();
+
     public abstract EventTypeDao eventTypeDao();
+
     public abstract LoginStoreDao loginStoreDao();
+
     public abstract ProfileDao profileDao();
+
     public abstract LuckyNumberDao luckyNumberDao();
+
     public abstract AnnouncementDao announcementDao();
+
     public abstract GradeCategoryDao gradeCategoryDao();
+
     public abstract FeedbackMessageDao feedbackMessageDao();
+
     public abstract MessageDao messageDao();
+
     public abstract MessageRecipientDao messageRecipientDao();
+
     public abstract DebugLogDao debugLogDao();
+
     public abstract EndpointTimerDao endpointTimerDao();
+
     public abstract LessonRangeDao lessonRangeDao();
+
     public abstract NotificationDao notificationDao();
+
     public abstract ClassroomDao classroomDao();
+
     public abstract NoticeTypeDao noticeTypeDao();
+
     public abstract AttendanceTypeDao attendanceTypeDao();
+
     public abstract MetadataDao metadataDao();
 
     private static volatile AppDb INSTANCE;

app/src/main/java/pl/szczodrzynski/edziennik/data/db/DatabaseModule.kt

@@ -0,0 +1,26 @@
+/*
+ * Copyright (c) Kacper Ziubryniewicz 2019-11-4
+ */
+
+package pl.szczodrzynski.edziennik.data.db
+
+import android.content.Context
+import dagger.Module
+import dagger.Provides
+import javax.inject.Singleton
+
+@Module
+internal class DatabaseModule {
+
+    @Singleton
+    @Provides
+    fun provideDatabase(context: Context) = AppDb.getDatabase(context)
+
+    @Singleton
+    @Provides
+    fun provideEventDao(database: AppDb) = database.eventDao()
+
+    @Singleton
+    @Provides
+    fun provideMetadataDao(database: AppDb) = database.metadataDao()
+}

app/src/main/java/pl/szczodrzynski/edziennik/data/db/modules/events/EventDao.java

@@ -1,19 +1,22 @@
 package pl.szczodrzynski.edziennik.data.db.modules.events;
 
+import android.util.Log;
+
+import androidx.annotation.NonNull;
 import androidx.lifecycle.LiveData;
-import androidx.sqlite.db.SimpleSQLiteQuery;
-import androidx.sqlite.db.SupportSQLiteQuery;
 import androidx.room.Dao;
 import androidx.room.Insert;
 import androidx.room.OnConflictStrategy;
 import androidx.room.Query;
 import androidx.room.RawQuery;
 import androidx.room.Transaction;
-import androidx.annotation.NonNull;
-import android.util.Log;
+import androidx.sqlite.db.SimpleSQLiteQuery;
+import androidx.sqlite.db.SupportSQLiteQuery;
 
 import java.util.List;
 
+import javax.inject.Singleton;
+
 import pl.szczodrzynski.edziennik.utils.models.Date;
 import pl.szczodrzynski.edziennik.utils.models.Time;
 
@@ -21,6 +24,7 @@ import static pl.szczodrzynski.edziennik.data.db.modules.metadata.Metadata.TYPE_
 import static pl.szczodrzynski.edziennik.data.db.modules.metadata.Metadata.TYPE_HOMEWORK;
 import static pl.szczodrzynski.edziennik.data.db.modules.metadata.Metadata.TYPE_LESSON_CHANGE;
 
+@Singleton
 @Dao
 public abstract class EventDao {
     @Insert(onConflict = OnConflictStrategy.REPLACE)
@@ -34,26 +38,32 @@ public abstract class EventDao {
 
     @Query("DELETE FROM events WHERE profileId = :profileId AND eventId = :id")
     public abstract void remove(int profileId, long id);
+
     @Query("DELETE FROM metadata WHERE profileId = :profileId AND thingType = :thingType AND thingId = :thingId")
     public abstract void removeMetadata(int profileId, int thingType, long thingId);
+
     @Transaction
     public void remove(int profileId, int type, long id) {
         remove(profileId, id);
         removeMetadata(profileId, type == Event.TYPE_HOMEWORK ? TYPE_HOMEWORK : TYPE_EVENT, id);
     }
+
     @Transaction
     public void remove(Event event) {
         remove(event.profileId, event.type, event.id);
     }
+
     @Transaction
     public void remove(int profileId, Event event) {
         remove(profileId, event.type, event.id);
     }
+
     @Query("DELETE FROM events WHERE teamId = :teamId AND eventId = :id")
     public abstract void removeByTeamId(long teamId, long id);
 
     @RawQuery(observedEntities = {Event.class})
     abstract LiveData<List<EventFull>> getAll(SupportSQLiteQuery query);
+
     public LiveData<List<EventFull>> getAll(int profileId, String filter) {
         String query = "SELECT \n" +
                 "*, \n" +
@@ -71,24 +81,31 @@ public abstract class EventDao {
         Log.d("DB", query);
         return getAll(new SimpleSQLiteQuery(query));
     }
+
     public LiveData<List<EventFull>> getAll(int profileId) {
         return getAll(profileId, "1");
     }
+
     public List<EventFull> getAllNow(int profileId) {
         return getAllNow(profileId, "1");
     }
+
     public LiveData<List<EventFull>> getAllWhere(int profileId, String filter) {
         return getAll(profileId, filter);
     }
+
     public LiveData<List<EventFull>> getAllByType(int profileId, int type, String filter) {
         return getAll(profileId, "eventType = "+type+" AND "+filter);
     }
+
     public LiveData<List<EventFull>> getAllByDate(int profileId, @NonNull Date date) {
         return getAll(profileId, "eventDate = '"+date.getStringY_m_d()+"'");
     }
+
     public List<EventFull> getAllByDateNow(int profileId, @NonNull Date date) {
         return getAllNow(profileId, "eventDate = '"+date.getStringY_m_d()+"'");
     }
+
     public LiveData<List<EventFull>> getAllByDateTime(int profileId, @NonNull Date date, Time time) {
         if (time == null)
             return getAllByDate(profileId, date);
@@ -97,6 +114,7 @@ public abstract class EventDao {
 
     @RawQuery
     abstract List<EventFull> getAllNow(SupportSQLiteQuery query);
+
     public List<EventFull> getAllNow(int profileId, String filter) {
         return getAllNow(new SimpleSQLiteQuery("SELECT \n" +
                 "*, \n" +
@@ -112,6 +130,7 @@ public abstract class EventDao {
                 "WHERE events.profileId = "+profileId+" AND events.eventBlacklisted = 0 AND "+filter+"\n" +
                 "ORDER BY eventStartTime, addedDate ASC"));
     }
+
     public List<EventFull> getNotNotifiedNow(int profileId) {
         return getAllNow(profileId, "notified = 0");
     }

app/src/main/java/pl/szczodrzynski/edziennik/data/db/modules/metadata/MetadataDao.java

@@ -9,7 +9,8 @@ import androidx.room.Transaction;
 
 import java.util.List;
 
-import pl.szczodrzynski.edziennik.data.db.modules.notices.Notice;
+import javax.inject.Singleton;
+
 import pl.szczodrzynski.edziennik.data.db.modules.announcements.Announcement;
 import pl.szczodrzynski.edziennik.data.db.modules.attendance.Attendance;
 import pl.szczodrzynski.edziennik.data.db.modules.events.Event;
@@ -17,6 +18,7 @@ import pl.szczodrzynski.edziennik.data.db.modules.grades.Grade;
 import pl.szczodrzynski.edziennik.data.db.modules.lessons.LessonChange;
 import pl.szczodrzynski.edziennik.data.db.modules.lessons.LessonFull;
 import pl.szczodrzynski.edziennik.data.db.modules.messages.Message;
+import pl.szczodrzynski.edziennik.data.db.modules.notices.Notice;
 import pl.szczodrzynski.edziennik.utils.models.UnreadCounter;
 
 import static pl.szczodrzynski.edziennik.data.db.modules.metadata.Metadata.TYPE_ANNOUNCEMENT;
@@ -28,6 +30,7 @@ import static pl.szczodrzynski.edziennik.data.db.modules.metadata.Metadata.TYPE_
 import static pl.szczodrzynski.edziennik.data.db.modules.metadata.Metadata.TYPE_MESSAGE;
 import static pl.szczodrzynski.edziennik.data.db.modules.metadata.Metadata.TYPE_NOTICE;
 
+@Singleton
 @Dao
 public abstract class MetadataDao {
     @Insert(onConflict = OnConflictStrategy.IGNORE)
@@ -43,7 +46,6 @@ public abstract class MetadataDao {
     abstract void updateNotified(int profileId, int thingType, long thingId, boolean notified);
 
 
-
     @Transaction
     public void setSeen(List<Metadata> metadataList) {
         for (Metadata metadata: metadataList) {
@@ -152,7 +154,6 @@ public abstract class MetadataDao {
     }
 
 
-
     @Query("UPDATE metadata SET seen = :seen WHERE profileId = :profileId AND thingType = :thingType")
     public abstract void setAllSeen(int profileId, int thingType, boolean seen);
 
@@ -166,7 +167,6 @@ public abstract class MetadataDao {
     public abstract void setAllNotified(int profileId, boolean notified);
 
 
-
     @Query("SELECT count() FROM metadata WHERE profileId = :profileId AND thingType = :thingType AND seen = 0")
     public abstract LiveData<Integer> countUnseen(int profileId, int thingType);
 
@@ -183,7 +183,6 @@ public abstract class MetadataDao {
     public abstract LiveData<Integer> countUnseen();
 
 
-
     @Query("DELETE FROM metadata WHERE profileId = :profileId AND thingType = :thingType AND thingId = :thingId")
     public abstract void delete(int profileId, int thingType, long thingId);
 
@@ -191,12 +190,10 @@ public abstract class MetadataDao {
     public abstract void deleteAll(int profileId);
 
 
-
     @Query("SELECT profileId, thingType, COUNT(thingId) AS count FROM metadata WHERE seen = 0 GROUP BY profileId, thingType")
     public abstract LiveData<List<UnreadCounter>> getUnreadCounts();
 
 
-
     @Query("DELETE FROM metadata WHERE profileId = :profileId AND thingType = "+TYPE_GRADE+" AND thingId NOT IN (SELECT gradeId FROM grades WHERE profileId = :profileId);")
     public abstract void deleteUnusedGrades(int profileId);
 

app/src/main/java/pl/szczodrzynski/edziennik/di/AppComponent.kt

@@ -0,0 +1,25 @@
+/*
+ * Copyright (c) Kacper Ziubryniewicz 2019-11-4
+ */
+
+package pl.szczodrzynski.edziennik.di
+
+import dagger.Component
+import dagger.android.AndroidInjector
+import dagger.android.support.AndroidSupportInjectionModule
+import pl.szczodrzynski.edziennik.App
+import pl.szczodrzynski.edziennik.data.db.DatabaseModule
+import javax.inject.Singleton
+
+@Singleton
+@Component(modules = [
+    AndroidSupportInjectionModule::class,
+    BindingModule::class,
+    AppModule::class,
+    DatabaseModule::class
+])
+interface AppComponent : AndroidInjector<App> {
+
+    @Component.Factory
+    interface Factory : AndroidInjector.Factory<App>
+}

app/src/main/java/pl/szczodrzynski/edziennik/di/AppModule.kt

@@ -0,0 +1,19 @@
+/*
+ * Copyright (c) Kacper Ziubryniewicz 2019-11-4
+ */
+
+package pl.szczodrzynski.edziennik.di
+
+import android.content.Context
+import dagger.Module
+import dagger.Provides
+import pl.szczodrzynski.edziennik.App
+import javax.inject.Singleton
+
+@Module
+internal class AppModule {
+
+    @Singleton
+    @Provides
+    fun provideContext(app: App): Context = app
+}

app/src/main/java/pl/szczodrzynski/edziennik/di/BindingModule.kt

@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) Kacper Ziubryniewicz 2019-11-4
+ */
+
+package pl.szczodrzynski.edziennik.di
+
+import dagger.Module
+import dagger.android.ContributesAndroidInjector
+import pl.szczodrzynski.edziennik.MainActivity
+import pl.szczodrzynski.edziennik.di.scopes.PerActivity
+import pl.szczodrzynski.edziennik.di.scopes.PerFragment
+import pl.szczodrzynski.edziennik.ui.modules.homework.HomeworkFragment
+import pl.szczodrzynski.edziennik.ui.modules.homework.list.HomeworkListFragment
+
+@Module
+@Suppress("unused")
+internal abstract class BindingModule {
+
+    /**
+     * ACTIVITIES
+     */
+
+    @PerActivity
+    @ContributesAndroidInjector
+    abstract fun bindMainActivity(): MainActivity
+
+    /**
+     * FRAGMENTS
+     */
+
+    @PerFragment
+    @ContributesAndroidInjector
+    abstract fun bindHomeworkFragment(): HomeworkFragment
+
+    @PerFragment
+    @ContributesAndroidInjector
+    abstract fun bindHomeworkListFragment(): HomeworkListFragment
+}

app/src/main/java/pl/szczodrzynski/edziennik/di/scopes/PerActivity.kt

@@ -0,0 +1,11 @@
+/*
+ * Copyright (c) Kacper Ziubryniewicz 2019-11-4
+ */
+
+package pl.szczodrzynski.edziennik.di.scopes
+
+import javax.inject.Scope
+
+@Scope
+@Retention(AnnotationRetention.RUNTIME)
+annotation class PerActivity

app/src/main/java/pl/szczodrzynski/edziennik/di/scopes/PerFragment.kt

@@ -0,0 +1,11 @@
+/*
+ * Copyright (c) Kacper Ziubryniewicz 2019-11-4
+ */
+
+package pl.szczodrzynski.edziennik.di.scopes
+
+import javax.inject.Scope
+
+@Scope
+@Retention(AnnotationRetention.RUNTIME)
+annotation class PerFragment

app/src/main/java/pl/szczodrzynski/edziennik/ui/base/BaseFragment.kt

@@ -0,0 +1,22 @@
+/*
+ * Copyright (c) Kacper Ziubryniewicz 2019-11-4
+ */
+
+package pl.szczodrzynski.edziennik.ui.base
+
+import android.widget.Toast
+import dagger.android.support.DaggerFragment
+
+abstract class BaseFragment<T : BasePresenter<out BaseView>> : DaggerFragment(), BaseView {
+
+    abstract var presenter: T
+
+    override fun showMessage(text: String) {
+        Toast.makeText(activity, text, Toast.LENGTH_SHORT).show()
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+        presenter.onDetachView()
+    }
+}

app/src/main/java/pl/szczodrzynski/edziennik/ui/base/BasePresenter.kt

@@ -0,0 +1,18 @@
+/*
+ * Copyright (c) Kacper Ziubryniewicz 2019-11-4
+ */
+
+package pl.szczodrzynski.edziennik.ui.base
+
+open class BasePresenter<T : BaseView> {
+
+    var view: T? = null
+
+    open fun onAttachView(view: T) {
+        this.view = view
+    }
+
+    open fun onDetachView() {
+        view = null
+    }
+}

app/src/main/java/pl/szczodrzynski/edziennik/ui/base/BaseView.kt

@@ -0,0 +1,10 @@
+/*
+ * Copyright (c) Kacper Ziubryniewicz 2019-11-4
+ */
+
+package pl.szczodrzynski.edziennik.ui.base
+
+interface BaseView {
+
+    fun showMessage(text: String)
+}

app/src/main/java/pl/szczodrzynski/edziennik/ui/modules/homework/HomeworkAdapter.java

@@ -1,132 +0,0 @@
-package pl.szczodrzynski.edziennik.ui.modules.homework;
-
-import android.content.Context;
-import android.graphics.PorterDuff;
-import android.graphics.PorterDuffColorFilter;
-import android.os.AsyncTask;
-import androidx.annotation.NonNull;
-import androidx.cardview.widget.CardView;
-import androidx.recyclerview.widget.RecyclerView;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.Button;
-import android.widget.TextView;
-
-import java.util.List;
-
-import pl.szczodrzynski.edziennik.App;
-import pl.szczodrzynski.edziennik.R;
-import pl.szczodrzynski.edziennik.data.db.modules.events.EventFull;
-import pl.szczodrzynski.edziennik.ui.dialogs.event.EventManualDialog;
-import pl.szczodrzynski.edziennik.ui.modules.home.HomeFragment;
-import pl.szczodrzynski.edziennik.utils.models.Date;
-
-import static pl.szczodrzynski.edziennik.utils.Utils.bs;
-
-public class HomeworkAdapter extends RecyclerView.Adapter<HomeworkAdapter.ViewHolder> {
-    private Context context;
-    private List<EventFull> homeworkList;
-
-    //getting the context and product list with constructor
-    public HomeworkAdapter(Context mCtx, List<EventFull> homeworkList) {
-        this.context = mCtx;
-        this.homeworkList = homeworkList;
-    }
-
-    @NonNull
-    @Override
-    public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
-        //inflating and returning our view holder
-        LayoutInflater inflater = LayoutInflater.from(context);
-        View view = inflater.inflate(R.layout.row_homework_item, parent, false);
-        return new ViewHolder(view);
-    }
-
-    public static String dayDiffString(Context context, int dayDiff) {
-        if (dayDiff > 0) {
-            if (dayDiff == 1) {
-                return context.getString(R.string.tomorrow);
-            }
-            else if (dayDiff == 2) {
-                return context.getString(R.string.the_day_after);
-            }
-            return HomeFragment.plural(context, R.plurals.time_till_days, Math.abs(dayDiff));
-        }
-        else if (dayDiff < 0) {
-            if (dayDiff == -1) {
-                return context.getString(R.string.yesterday);
-            }
-            else if (dayDiff == -2) {
-                return context.getString(R.string.the_day_before);
-            }
-            return context.getString(R.string.ago_format, HomeFragment.plural(context, R.plurals.time_till_days, Math.abs(dayDiff)));
-        }
-        return context.getString(R.string.today);
-    }
-
-    @Override
-    public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
-        App app = (App) context.getApplicationContext();
-
-        EventFull homework = homeworkList.get(position);
-
-        int diffDays = Date.diffDays(homework.eventDate, Date.getToday());
-
-        holder.homeworkItemHomeworkDate.setText(app.getString(R.string.date_relative_format, homework.eventDate.getFormattedString(), dayDiffString(context, diffDays)));
-        holder.homeworkItemTopic.setText(homework.topic);
-        holder.homeworkItemSubjectTeacher.setText(context.getString(R.string.homework_subject_teacher_format, bs(homework.subjectLongName), bs(homework.teacherFullName)));
-        holder.homeworkItemTeamDate.setText(context.getString(R.string.homework_team_date_format, bs(homework.teamName), Date.fromMillis(homework.addedDate).getFormattedStringShort()));
-
-        if (!homework.seen) {
-            holder.homeworkItemTopic.setBackground(context.getResources().getDrawable(R.drawable.bg_rounded_8dp));
-            holder.homeworkItemTopic.getBackground().setColorFilter(new PorterDuffColorFilter(0x692196f3, PorterDuff.Mode.MULTIPLY));
-            homework.seen = true;
-            AsyncTask.execute(() -> {
-                app.db.metadataDao().setSeen(App.profileId, homework, true);
-            });
-        }
-        else {
-            holder.homeworkItemTopic.setBackground(null);
-        }
-
-        holder.homeworkItemEdit.setVisibility((homework.addedManually ? View.VISIBLE : View.GONE));
-        holder.homeworkItemEdit.setOnClickListener(v -> {
-            new EventManualDialog(context).show(app, homework, null, null, EventManualDialog.DIALOG_HOMEWORK);
-        });
-
-        if (homework.sharedBy == null) {
-            holder.homeworkItemSharedBy.setVisibility(View.GONE);
-        }
-        else if (homework.sharedByName != null) {
-            holder.homeworkItemSharedBy.setText(app.getString(R.string.event_shared_by_format, (homework.sharedBy.equals("self") ? app.getString(R.string.event_shared_by_self) : homework.sharedByName)));
-        }
-    }
-
-    @Override
-    public int getItemCount() {
-        return homeworkList.size();
-    }
-
-    class ViewHolder extends RecyclerView.ViewHolder {
-
-        CardView homeworkItemCard;
-        TextView homeworkItemTopic;
-        TextView homeworkItemHomeworkDate;
-        TextView homeworkItemSharedBy;
-        TextView homeworkItemSubjectTeacher;
-        TextView homeworkItemTeamDate;
-        Button homeworkItemEdit;
-
-        ViewHolder(View itemView) {
-            super(itemView);
-            homeworkItemCard = itemView.findViewById(R.id.homeworkItemCard);
-            homeworkItemTopic = itemView.findViewById(R.id.homeworkItemTopic);
-            homeworkItemHomeworkDate = itemView.findViewById(R.id.homeworkItemHomeworkDate);
-            homeworkItemSharedBy = itemView.findViewById(R.id.homeworkItemSharedBy);
-            homeworkItemSubjectTeacher = itemView.findViewById(R.id.homeworkItemSubjectTeacher);
-            homeworkItemTeamDate = itemView.findViewById(R.id.homeworkItemTeamDate);
-            homeworkItemEdit = itemView.findViewById(R.id.homeworkItemEdit);
-        }
-    }
-}

app/src/main/java/pl/szczodrzynski/edziennik/ui/modules/homework/HomeworkFragment.kt

@@ -1,84 +1,77 @@
 package pl.szczodrzynski.edziennik.ui.modules.homework
 
-import android.os.AsyncTask
 import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
-import android.widget.Toast
-import androidx.fragment.app.Fragment
 import androidx.viewpager.widget.ViewPager
 import com.mikepenz.iconics.typeface.library.community.material.CommunityMaterial
 import pl.szczodrzynski.edziennik.App
 import pl.szczodrzynski.edziennik.MainActivity
 import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.databinding.FragmentHomeworkBinding
-import pl.szczodrzynski.edziennik.data.db.modules.metadata.Metadata
+import pl.szczodrzynski.edziennik.ui.base.BaseFragment
 import pl.szczodrzynski.edziennik.ui.dialogs.event.EventManualDialog
+import pl.szczodrzynski.edziennik.ui.modules.homework.list.HomeworkListFragment
 import pl.szczodrzynski.edziennik.ui.modules.messages.MessagesFragment
 import pl.szczodrzynski.edziennik.utils.Themes
 import pl.szczodrzynski.navlib.bottomsheet.items.BottomSheetPrimaryItem
 import pl.szczodrzynski.navlib.bottomsheet.items.BottomSheetSeparatorItem
+import javax.inject.Inject
 
-class HomeworkFragment : Fragment() {
+class HomeworkFragment : BaseFragment<HomeworkPresenter>(), HomeworkView {
     companion object {
         var pageSelection = 0
     }
 
-    private lateinit var app: App
     private lateinit var activity: MainActivity
     private lateinit var b: FragmentHomeworkBinding
 
+    @Inject
+    override lateinit var presenter: HomeworkPresenter
+
+    @Inject
+    lateinit var app: App
+
+    override val markAsReadSuccessString: String
+        get() = getString(R.string.main_menu_mark_as_read_success)
+
+    override fun onActivityCreated(savedInstanceState: Bundle?) {
+        super.onActivityCreated(savedInstanceState)
+        presenter.onAttachView(this)
+    }
+
     override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
-        activity = (getActivity() as MainActivity?) ?: return null
-        if (context == null)
-            return null
-        app = activity.application as App
+        activity = (getActivity() as MainActivity)
         context!!.theme.applyStyle(Themes.appTheme, true)
         if (app.profile == null)
             return inflater.inflate(R.layout.fragment_loading, container, false)
-        // activity, context and profile is valid
         b = FragmentHomeworkBinding.inflate(inflater)
-        b.refreshLayout.setParent(activity.swipeRefreshLayout)
         return b.root
     }
 
-    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+    override fun initView() {
         // TODO check if app, activity, b can be null
         if (app.profile == null || !isAdded)
             return
 
+        b.refreshLayout.setParent(activity.swipeRefreshLayout)
+
         activity.bottomSheet.prependItems(
                 BottomSheetPrimaryItem(true)
                         .withTitle(R.string.menu_add_event)
                         .withDescription(R.string.menu_add_event_desc)
                         .withIcon(CommunityMaterial.Icon.cmd_calendar_plus)
-                .withOnClickListener(View.OnClickListener {
-                    activity.bottomSheet.close()
-                    EventManualDialog(activity).show(app, null, null, null, EventManualDialog.DIALOG_HOMEWORK)
-                }),
+                        .withOnClickListener(View.OnClickListener { presenter.onAddEventClick() }),
                 BottomSheetSeparatorItem(true),
                 BottomSheetPrimaryItem(true)
                         .withTitle(R.string.menu_mark_as_read)
                         .withIcon(CommunityMaterial.Icon.cmd_eye_check)
-                .withOnClickListener(View.OnClickListener {
-                    activity.bottomSheet.close()
-                    AsyncTask.execute { app.db.metadataDao().setAllSeen(App.profileId, Metadata.TYPE_HOMEWORK, true) }
-                    Toast.makeText(activity, R.string.main_menu_mark_as_read_success, Toast.LENGTH_SHORT).show()
-                }))
+                        .withOnClickListener(View.OnClickListener { presenter.onMarkAsReadClick() }))
 
         b.viewPager.adapter = MessagesFragment.Adapter(childFragmentManager).also { adapter ->
-            adapter.addFragment(HomeworkListFragment().also { fragment ->
-                fragment.arguments = Bundle().also {  args ->
-                    args.putInt("homeworkDate", HomeworkDate.CURRENT)
-                }
-            }, getString(R.string.homework_tab_current))
-
-            adapter.addFragment(HomeworkListFragment().also { fragment ->
-                fragment.arguments = Bundle().also {  args ->
-                    args.putInt("homeworkDate", HomeworkDate.PAST)
-                }
-            }, getString(R.string.homework_tab_past))
+            adapter.addFragment(HomeworkListFragment.newInstance(HomeworkDate.CURRENT), getString(R.string.homework_tab_current))
+            adapter.addFragment(HomeworkListFragment.newInstance(HomeworkDate.PAST), getString(R.string.homework_tab_past))
         }
 
         b.viewPager.currentItem = pageSelection
@@ -86,9 +79,7 @@ class HomeworkFragment : Fragment() {
         b.viewPager.addOnPageChangeListener(object : ViewPager.OnPageChangeListener {
             override fun onPageScrollStateChanged(state: Int) {}
             override fun onPageScrolled(position: Int, positionOffset: Float, positionOffsetPixels: Int) {}
-            override fun onPageSelected(position: Int) {
-                pageSelection = position
-            }
+            override fun onPageSelected(position: Int) = presenter.onPageSelected(position)
         })
 
         b.tabLayout.setupWithViewPager(b.viewPager)
@@ -96,11 +87,21 @@ class HomeworkFragment : Fragment() {
         activity.navView.bottomBar.fabEnable = true
         activity.navView.bottomBar.fabExtendedText = getString(R.string.add)
         activity.navView.bottomBar.fabIcon = CommunityMaterial.Icon2.cmd_plus
-        activity.navView.setFabOnClickListener(View.OnClickListener {
-            EventManualDialog(activity).show(app, null, null, null, EventManualDialog.DIALOG_HOMEWORK)
-        })
+        activity.navView.setFabOnClickListener(View.OnClickListener { presenter.onHomeworkAddFabClick() })
 
         activity.gainAttention()
         activity.gainAttentionFAB()
     }
+
+    override fun setPageSelection(position: Int) {
+        pageSelection = position
+    }
+
+    override fun closeBottomSheet() {
+        activity.bottomSheet.close()
+    }
+
+    override fun showAddHomeworkDialog() {
+        EventManualDialog(activity).show(app, null, null, null, EventManualDialog.DIALOG_HOMEWORK)
+    }
 }

app/src/main/java/pl/szczodrzynski/edziennik/ui/modules/homework/HomeworkListFragment.kt

@@ -1,77 +0,0 @@
-package pl.szczodrzynski.edziennik.ui.modules.homework
-
-import android.os.Bundle
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
-import androidx.fragment.app.Fragment
-import androidx.lifecycle.Observer
-import androidx.recyclerview.widget.LinearLayoutManager
-import pl.szczodrzynski.edziennik.App
-import pl.szczodrzynski.edziennik.MainActivity
-import pl.szczodrzynski.edziennik.R
-import pl.szczodrzynski.edziennik.databinding.HomeworkListBinding
-import pl.szczodrzynski.edziennik.data.db.modules.events.Event
-import pl.szczodrzynski.edziennik.getInt
-import pl.szczodrzynski.edziennik.utils.models.Date
-import pl.szczodrzynski.edziennik.utils.Themes
-
-class HomeworkListFragment : Fragment() {
-
-    private lateinit var app: App
-    private lateinit var activity: MainActivity
-    private lateinit var b: HomeworkListBinding
-
-    private var homeworkDate = HomeworkDate.CURRENT
-
-    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
-        activity = (getActivity() as MainActivity?) ?: return null
-        if (context == null)
-            return null
-        app = activity.application as App
-        context!!.theme.applyStyle(Themes.appTheme, true)
-        if (app.profile == null)
-            return inflater.inflate(R.layout.fragment_loading, container, false)
-        // activity, context and profile is valid
-        b = HomeworkListBinding.inflate(inflater)
-        return b.root
-    }
-
-    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-        // TODO check if app, activity, b can be null
-        if (app.profile == null || !isAdded)
-            return
-
-        if (arguments != null) {
-            homeworkDate = arguments.getInt("homeworkDate", HomeworkDate.CURRENT)
-        }
-
-        val layoutManager = LinearLayoutManager(context)
-        layoutManager.reverseLayout = true
-        layoutManager.stackFromEnd = true
-
-        b.homeworkView.setHasFixedSize(true)
-        b.homeworkView.layoutManager = layoutManager
-
-        val filter = when(homeworkDate) {
-            HomeworkDate.CURRENT -> "eventDate > '" + Date.getToday().stringY_m_d + "'"
-            else -> "eventDate <= '" + Date.getToday().stringY_m_d + "'"
-        }
-
-        app.db.eventDao()
-                .getAllByType(App.profileId, Event.TYPE_HOMEWORK, filter)
-                .observe(this, Observer { homeworkList ->
-                    if (app.profile == null || !isAdded) return@Observer
-
-                    if (homeworkList != null && homeworkList.size > 0) {
-                        val adapter = HomeworkAdapter(context, homeworkList)
-                        b.homeworkView.adapter = adapter
-                        b.homeworkView.visibility = View.VISIBLE
-                        b.homeworkNoData.visibility = View.GONE
-                    } else {
-                        b.homeworkView.visibility = View.GONE
-                        b.homeworkNoData.visibility = View.VISIBLE
-                    }
-                })
-    }
-}

app/src/main/java/pl/szczodrzynski/edziennik/ui/modules/homework/HomeworkPresenter.kt

@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) Kacper Ziubryniewicz 2019-11-4
+ */
+
+package pl.szczodrzynski.edziennik.ui.modules.homework
+
+import android.os.AsyncTask
+import pl.szczodrzynski.edziennik.App
+import pl.szczodrzynski.edziennik.data.db.modules.metadata.Metadata
+import pl.szczodrzynski.edziennik.data.db.modules.metadata.MetadataDao
+import pl.szczodrzynski.edziennik.ui.base.BasePresenter
+import javax.inject.Inject
+
+class HomeworkPresenter @Inject constructor(
+        private val metadataDao: MetadataDao
+) : BasePresenter<HomeworkView>() {
+
+    override fun onAttachView(view: HomeworkView) {
+        super.onAttachView(view)
+        view.initView()
+    }
+
+    fun onPageSelected(position: Int) {
+        view?.setPageSelection(position)
+    }
+
+    fun onAddEventClick() {
+        view?.apply {
+            closeBottomSheet()
+            showAddHomeworkDialog()
+        }
+    }
+
+    fun onMarkAsReadClick() {
+        view?.apply {
+            closeBottomSheet()
+            AsyncTask.execute {
+                metadataDao.setAllSeen(App.profileId, Metadata.TYPE_HOMEWORK, true)
+            }
+            showMessage(markAsReadSuccessString)
+        }
+    }
+
+    fun onHomeworkAddFabClick() {
+        view?.showAddHomeworkDialog()
+    }
+}

app/src/main/java/pl/szczodrzynski/edziennik/ui/modules/homework/HomeworkView.kt

@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) Kacper Ziubryniewicz 2019-11-4
+ */
+
+package pl.szczodrzynski.edziennik.ui.modules.homework
+
+import pl.szczodrzynski.edziennik.ui.base.BaseView
+
+interface HomeworkView : BaseView {
+
+    val markAsReadSuccessString: String
+
+    fun initView()
+
+    fun closeBottomSheet()
+
+    fun showAddHomeworkDialog()
+
+    fun setPageSelection(position: Int)
+}

app/src/main/java/pl/szczodrzynski/edziennik/ui/modules/homework/list/HomeworkListAdapter.kt

@@ -0,0 +1,111 @@
+/*
+ * Copyright (c) Kacper Ziubryniewicz 2019-11-4
+ */
+
+package pl.szczodrzynski.edziennik.ui.modules.homework.list
+
+import android.content.res.Resources
+import android.graphics.PorterDuff
+import android.graphics.PorterDuffColorFilter
+import android.graphics.drawable.Drawable
+import android.os.AsyncTask
+import android.view.LayoutInflater
+import android.view.View.GONE
+import android.view.View.VISIBLE
+import android.view.ViewGroup
+import androidx.core.content.ContextCompat
+import androidx.databinding.DataBindingUtil
+import androidx.recyclerview.widget.RecyclerView
+import pl.szczodrzynski.edziennik.App
+import pl.szczodrzynski.edziennik.R
+import pl.szczodrzynski.edziennik.data.db.modules.events.EventFull
+import pl.szczodrzynski.edziennik.data.db.modules.metadata.MetadataDao
+import pl.szczodrzynski.edziennik.databinding.RowHomeworkItemBinding
+import pl.szczodrzynski.edziennik.utils.Utils.bs
+import pl.szczodrzynski.edziennik.utils.models.Date
+import javax.inject.Inject
+import kotlin.math.abs
+
+class HomeworkListAdapter @Inject constructor(
+        private val metadataDao: MetadataDao
+) : RecyclerView.Adapter<HomeworkListAdapter.ViewHolder>() {
+
+    val homeworkList: MutableList<EventFull> = mutableListOf()
+    lateinit var onItemEditClick: (homework: EventFull) -> Unit
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
+        val inflater = LayoutInflater.from(parent.context)
+        val b: RowHomeworkItemBinding = DataBindingUtil.inflate(inflater, R.layout.row_homework_item, parent, false)
+        return ViewHolder(b)
+    }
+
+    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
+        val homework = homeworkList[position]
+
+        holder.apply {
+            val diffDaysString = dateDiffString(Date.diffDays(homework.eventDate, Date.getToday()))
+
+            b.homeworkItemHomeworkDate.text = getString(R.string.date_relative_format, homework.eventDate.formattedString, diffDaysString)
+            b.homeworkItemTopic.text = homework.topic
+            b.homeworkItemSubjectTeacher.text = getString(R.string.homework_subject_teacher_format, bs(homework.subjectLongName), bs(homework.teacherFullName))
+            b.homeworkItemTeamDate.text = getString(R.string.homework_team_date_format, bs(homework.teamName), Date.fromMillis(homework.addedDate).formattedStringShort)
+
+            when {
+                !homework.seen -> {
+                    b.homeworkItemTopic.apply {
+                        background = getDrawable(R.drawable.bg_rounded_8dp)
+                        background.colorFilter = PorterDuffColorFilter(0x692196f3, PorterDuff.Mode.MULTIPLY)
+                    }
+
+                    homework.seen = true
+                    AsyncTask.execute {
+                        metadataDao.setSeen(App.profileId, homework, true)
+                    }
+                }
+                else -> b.homeworkItemTopic.background = null
+            }
+
+            b.homeworkItemEdit.apply {
+                visibility = if (homework.addedManually) VISIBLE else GONE
+                setOnClickListener { onItemEditClick(homework) }
+            }
+
+            b.homeworkItemSharedBy.apply {
+                when {
+                    homework.sharedBy == null -> visibility = GONE
+                    homework.sharedByName != null -> text = getString(R.string.event_shared_by_format,
+                            when (homework.sharedBy == "self") {
+                                true -> getString(R.string.event_shared_by_self)
+                                else -> homework.sharedByName
+                            })
+                }
+            }
+        }
+    }
+
+    override fun getItemCount() = homeworkList.size
+
+    class ViewHolder(val b: RowHomeworkItemBinding) : RecyclerView.ViewHolder(b.root) {
+        fun getString(resId: Int): String = itemView.context.getString(resId)
+        fun getString(resId: Int, vararg formatArgs: Any): String = itemView.context.getString(resId, *formatArgs)
+        fun getDrawable(resId: Int): Drawable? = ContextCompat.getDrawable(itemView.context, resId)
+
+        val resources: Resources get() = itemView.context.resources
+
+        fun dateDiffString(diff: Int): String {
+            return when {
+                diff > 0 -> when (diff) {
+                    1 -> getString(R.string.tomorrow)
+                    2 -> getString(R.string.the_day_after)
+                    else -> resources.getQuantityString(R.plurals.time_till_days, abs(diff), abs(diff))
+                }
+                diff < 0 -> when (diff) {
+                    -1 -> getString(R.string.yesterday)
+                    -2 -> getString(R.string.the_day_before)
+                    else -> getString(R.string.ago_format, resources.getQuantityString(R.plurals.time_till_days, abs(diff), abs(diff)))
+                }
+                else -> getString(R.string.today)
+            }
+        }
+    }
+}

app/src/main/java/pl/szczodrzynski/edziennik/ui/modules/homework/list/HomeworkListFragment.kt

@@ -0,0 +1,107 @@
+/*
+ * Copyright (c) Kacper Ziubryniewicz 2019-11-4
+ */
+
+package pl.szczodrzynski.edziennik.ui.modules.homework.list
+
+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 androidx.lifecycle.Lifecycle
+import androidx.recyclerview.widget.LinearLayoutManager
+import pl.szczodrzynski.edziennik.App
+import pl.szczodrzynski.edziennik.MainActivity
+import pl.szczodrzynski.edziennik.R
+import pl.szczodrzynski.edziennik.data.db.modules.events.EventFull
+import pl.szczodrzynski.edziennik.databinding.HomeworkListBinding
+import pl.szczodrzynski.edziennik.ui.base.BaseFragment
+import pl.szczodrzynski.edziennik.ui.dialogs.event.EventManualDialog
+import pl.szczodrzynski.edziennik.utils.Themes
+import javax.inject.Inject
+
+class HomeworkListFragment : BaseFragment<HomeworkListPresenter>(), HomeworkListView {
+
+    private lateinit var activity: MainActivity
+    private lateinit var b: HomeworkListBinding
+
+    @Inject
+    override lateinit var presenter: HomeworkListPresenter
+
+    @Inject
+    lateinit var app: App
+
+    @Inject
+    lateinit var homeworkAdapter: HomeworkListAdapter
+
+    override val viewLifecycle: Lifecycle
+        get() = lifecycle
+
+    companion object {
+        private const val ARGUMENT_KEY = "homeworkDate"
+
+        fun newInstance(homeworkDate: Int) = HomeworkListFragment().apply {
+            arguments = Bundle().apply { putInt(ARGUMENT_KEY, homeworkDate) }
+        }
+    }
+
+    override fun onActivityCreated(savedInstanceState: Bundle?) {
+        super.onActivityCreated(savedInstanceState)
+        presenter.onAttachView(this, arguments?.getInt(ARGUMENT_KEY))
+    }
+
+    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
+        activity = (getActivity() as MainActivity?) ?: return null
+        if (context == null)
+            return null
+        context!!.theme.applyStyle(Themes.appTheme, true)
+        if (app.profile == null)
+            return inflater.inflate(R.layout.fragment_loading, container, false)
+        // activity, context and profile is valid
+        b = HomeworkListBinding.inflate(inflater)
+        return b.root
+    }
+
+    override fun initView() {
+        // TODO check if app, activity, b can be null
+        if (app.profile == null || !isAdded)
+            return
+
+        val layoutManager = LinearLayoutManager(context).apply {
+            reverseLayout = true
+            stackFromEnd = true
+        }
+
+        homeworkAdapter.onItemEditClick = presenter::onItemEditClick
+
+        b.homeworkView.apply {
+            setHasFixedSize(true)
+            this.layoutManager = layoutManager
+            adapter = homeworkAdapter
+        }
+    }
+
+    override fun updateData(data: List<EventFull>) {
+        homeworkAdapter.apply {
+            homeworkList.apply {
+                clear()
+                addAll(data)
+            }
+            notifyDataSetChanged()
+        }
+    }
+
+    override fun showContent(show: Boolean) {
+        b.homeworkView.visibility = if (show) VISIBLE else GONE
+    }
+
+    override fun showNoData(show: Boolean) {
+        b.homeworkNoData.visibility = if (show) VISIBLE else GONE
+    }
+
+    override fun showEditHomeworkDialog(homework: EventFull) {
+        EventManualDialog(context).show(app, homework, null, null, EventManualDialog.DIALOG_HOMEWORK)
+    }
+}

app/src/main/java/pl/szczodrzynski/edziennik/ui/modules/homework/list/HomeworkListPresenter.kt

@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) Kacper Ziubryniewicz 2019-11-4
+ */
+
+package pl.szczodrzynski.edziennik.ui.modules.homework.list
+
+import pl.szczodrzynski.edziennik.App
+import pl.szczodrzynski.edziennik.data.db.modules.events.Event
+import pl.szczodrzynski.edziennik.data.db.modules.events.EventDao
+import pl.szczodrzynski.edziennik.data.db.modules.events.EventFull
+import pl.szczodrzynski.edziennik.ui.base.BasePresenter
+import pl.szczodrzynski.edziennik.ui.modules.homework.HomeworkDate
+import pl.szczodrzynski.edziennik.utils.models.Date
+import javax.inject.Inject
+
+class HomeworkListPresenter @Inject constructor(
+        private val app: App,
+        private val eventDao: EventDao
+) : BasePresenter<HomeworkListView>() {
+
+    fun onAttachView(view: HomeworkListView, homeworkDate: Int?) {
+        super.onAttachView(view)
+        view.initView()
+        loadData(homeworkDate ?: HomeworkDate.CURRENT)
+    }
+
+    private fun loadData(homeworkDate: Int) {
+        val today = Date.getToday().stringY_m_d
+
+        val filter = when (homeworkDate) {
+            HomeworkDate.CURRENT -> "eventDate > '$today'"
+            else -> "eventDate <= '$today'"
+        }
+
+        view?.run {
+            eventDao.getAllByType(App.profileId, Event.TYPE_HOMEWORK, filter)
+                    .observe({ viewLifecycle }, { homeworkList ->
+                        if (app.profile == null) return@observe
+
+                        if (homeworkList != null && homeworkList.size > 0) {
+                            updateData(homeworkList)
+                            showContent(true)
+                            showNoData(false)
+                        } else {
+                            showContent(false)
+                            showNoData(true)
+                        }
+                    })
+        }
+    }
+
+    fun onItemEditClick(homework: EventFull) {
+        view?.showEditHomeworkDialog(homework)
+    }
+}

app/src/main/java/pl/szczodrzynski/edziennik/ui/modules/homework/list/HomeworkListView.kt

@@ -0,0 +1,24 @@
+/*
+ * Copyright (c) Kacper Ziubryniewicz 2019-11-4
+ */
+
+package pl.szczodrzynski.edziennik.ui.modules.homework.list
+
+import androidx.lifecycle.Lifecycle
+import pl.szczodrzynski.edziennik.data.db.modules.events.EventFull
+import pl.szczodrzynski.edziennik.ui.base.BaseView
+
+interface HomeworkListView : BaseView {
+
+    val viewLifecycle: Lifecycle
+
+    fun initView()
+
+    fun updateData(data: List<EventFull>)
+
+    fun showContent(show: Boolean)
+
+    fun showNoData(show: Boolean)
+
+    fun showEditHomeworkDialog(homework: EventFull)
+}

app/src/main/res/layout/row_homework_item.xml

@@ -1,7 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<layout 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"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <LinearLayout
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:orientation="vertical">
@@ -11,13 +13,13 @@
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:layout_margin="8dp"
-        app:cardElevation="4dp"
-        app:cardCornerRadius="5dp"
             android:background="?selectableItemBackground"
             android:paddingLeft="10dp"
             android:paddingTop="5dp"
             android:paddingRight="10dp"
-        android:paddingBottom="3dp">
+            android:paddingBottom="3dp"
+            app:cardCornerRadius="5dp"
+            app:cardElevation="4dp">
 
             <LinearLayout
                 android:layout_width="match_parent"
@@ -34,11 +36,11 @@
                         android:id="@+id/homeworkItemHomeworkDate"
                         android:layout_width="wrap_content"
                         android:layout_height="wrap_content"
+                        android:layout_marginEnd="16dp"
                         android:layout_marginRight="16dp"
                         android:textAppearance="@style/TextAppearance.AppCompat.Small"
                         android:textSize="16sp"
-                    tools:text="homeworkDate"
-                    android:layout_marginEnd="16dp" />
+                        tools:text="homeworkDate" />
 
                     <com.mikepenz.iconics.view.IconicsTextView
                         android:id="@+id/homeworkItemSharedBy"
@@ -65,10 +67,10 @@
                         android:layout_width="match_parent"
                         android:layout_height="wrap_content"
                         android:layout_weight="1"
-                    android:paddingBottom="4dp"
-                    android:textSize="18sp"
-                    android:textIsSelectable="true"
                         android:autoLink="all"
+                        android:paddingBottom="4dp"
+                        android:textIsSelectable="true"
+                        android:textSize="18sp"
                         tools:text="topic???" />
 
                     <com.google.android.material.button.MaterialButton
@@ -111,3 +113,4 @@
         </com.google.android.material.card.MaterialCardView>
 
     </LinearLayout>
+</layout>

build.gradle

@@ -47,7 +47,8 @@ buildscript {
 
                 navlib           : "e4ad01dc87",
 
-                gifdrawable      : "1.2.15"
+                gifdrawable      : "1.2.15",
+                dagger           : "2.24"
         ]
     }