Add dialog with info about dropping support for android 4 (#1221)

app/src/main/java/io/github/wulkanowy/data/repositories/PreferencesRepository.kt

@@ -2,6 +2,7 @@ package io.github.wulkanowy.data.repositories
 
 import android.content.Context
 import android.content.SharedPreferences
+import androidx.core.content.edit
 import dagger.hilt.android.qualifiers.ApplicationContext
 import io.github.wulkanowy.R
 import io.github.wulkanowy.ui.modules.grade.GradeAverageMode
@@ -145,6 +146,10 @@ class PreferencesRepository @Inject constructor(
             R.bool.pref_default_subjects_without_grades
         )
 
+    var isKitkatDialogDisabled: Boolean
+        get() = sharedPref.getBoolean("kitkat_dialog_disabled", false)
+        set(value) = sharedPref.edit { putBoolean("kitkat_dialog_disabled", value) }
+
     private fun getString(id: Int, default: Int) = getString(context.getString(id), default)
 
     private fun getString(id: String, default: Int) =

app/src/main/java/io/github/wulkanowy/ui/modules/splash/SplashActivity.kt

@@ -3,17 +3,23 @@ package io.github.wulkanowy.ui.modules.splash
 import android.os.Bundle
 import android.widget.Toast
 import android.widget.Toast.LENGTH_LONG
+import androidx.appcompat.app.AlertDialog
 import androidx.viewbinding.ViewBinding
 import dagger.hilt.android.AndroidEntryPoint
+import io.github.wulkanowy.R
 import io.github.wulkanowy.ui.base.BaseActivity
 import io.github.wulkanowy.ui.modules.login.LoginActivity
 import io.github.wulkanowy.ui.modules.main.MainActivity
+import io.github.wulkanowy.utils.AppInfo
 import io.github.wulkanowy.utils.openInternetBrowser
 import javax.inject.Inject
 
 @AndroidEntryPoint
 class SplashActivity : BaseActivity<SplashPresenter, ViewBinding>(), SplashView {
 
+    @Inject
+    lateinit var appInfo: AppInfo
+
     @Inject
     override lateinit var presenter: SplashPresenter
 
@@ -40,4 +46,14 @@ class SplashActivity : BaseActivity<SplashPresenter, ViewBinding>(), SplashView
     override fun showError(text: String, error: Throwable) {
         Toast.makeText(this, text, LENGTH_LONG).show()
     }
+
+    override fun showKitkatView() {
+        AlertDialog.Builder(this)
+            .setTitle(R.string.drop_kitkat_title)
+            .setMessage(R.string.drop_kitkat_content)
+            .setPositiveButton(android.R.string.ok, null)
+            .setNeutralButton(R.string.drop_kitkat_again) { _, _ -> presenter.onNeutralButtonSelected() }
+            .setOnDismissListener { presenter.onKitkatViewDismissed() }
+            .show()
+    }
 }

app/src/main/java/io/github/wulkanowy/ui/modules/splash/SplashPresenter.kt

@@ -1,9 +1,12 @@
 package io.github.wulkanowy.ui.modules.splash
 
+import android.os.Build
 import io.github.wulkanowy.data.Status
+import io.github.wulkanowy.data.repositories.PreferencesRepository
 import io.github.wulkanowy.data.repositories.StudentRepository
 import io.github.wulkanowy.ui.base.BasePresenter
 import io.github.wulkanowy.ui.base.ErrorHandler
+import io.github.wulkanowy.utils.AppInfo
 import io.github.wulkanowy.utils.flowWithResource
 import kotlinx.coroutines.flow.onEach
 import timber.log.Timber
@@ -11,25 +14,47 @@ import javax.inject.Inject
 
 class SplashPresenter @Inject constructor(
     errorHandler: ErrorHandler,
-    studentRepository: StudentRepository
+    studentRepository: StudentRepository,
+    private val preferencesRepository: PreferencesRepository,
+    private val appInfo: AppInfo
 ) : BasePresenter<SplashView>(errorHandler, studentRepository) {
 
+    private var externalUrl: String? = null
+
     fun onAttachView(view: SplashView, externalUrl: String?) {
         super.onAttachView(view)
+        this.externalUrl = externalUrl
 
+        if (appInfo.systemVersion < Build.VERSION_CODES.LOLLIPOP && !preferencesRepository.isKitkatDialogDisabled) {
+            view.showKitkatView()
+        } else {
+            loadCorrectDataOrUser()
+        }
+    }
+
+    private fun loadCorrectDataOrUser() {
         if (!externalUrl.isNullOrBlank()) {
-            return view.openExternalUrlAndFinish(externalUrl)
+            view?.openExternalUrlAndFinish(externalUrl!!)
+            return
         }
 
         flowWithResource { studentRepository.isCurrentStudentSet() }.onEach {
             when (it.status) {
                 Status.LOADING -> Timber.d("Is current user set check started")
-                Status.SUCCESS -> with(view) {
-                    if (it.data!!) openMainView()
-                    else openLoginView()
+                Status.SUCCESS -> {
+                    if (it.data!!) view?.openMainView()
+                    else view?.openLoginView()
                 }
                 Status.ERROR -> errorHandler.dispatch(it.error!!)
             }
         }.launch()
     }
+
+    fun onKitkatViewDismissed() {
+        loadCorrectDataOrUser()
+    }
+
+    fun onNeutralButtonSelected() {
+        preferencesRepository.isKitkatDialogDisabled = true
+    }
 }

app/src/main/java/io/github/wulkanowy/ui/modules/splash/SplashView.kt

@@ -9,4 +9,6 @@ interface SplashView : BaseView {
     fun openMainView()
 
     fun openExternalUrlAndFinish(url: String)
+
+    fun showKitkatView()
 }