[UI] Request notifications permission on API >= 33. (#143)

* Added requesting notifications permission on Android 13 devices

* Move permission check to PermissionManager

* Request permission on home screen

app/src/main/AndroidManifest.xml

@@ -12,7 +12,7 @@
     <uses-permission android:name="android.permission.VIBRATE" />
     <uses-permission android:name="android.permission.CAMERA" />
     <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
-
+    <uses-permission android:name="android.permission.POST_NOTIFICATIONS"/>
     <!-- PowerPermission uses minSdk 21, it's safe to override as it is used only in >= 23 -->
     <uses-sdk tools:overrideLibrary="com.qifan.powerpermission.coroutines, com.qifan.powerpermission.core" />
 

app/src/main/java/pl/szczodrzynski/edziennik/ui/home/HomeFragment.kt

@@ -81,7 +81,8 @@ class HomeFragment : Fragment(), CoroutineScope {
     private val job: Job = Job()
     override val coroutineContext: CoroutineContext
         get() = job + Dispatchers.Main
-
+    private val manager
+        get() = app.permissionManager
     override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
         activity = (getActivity() as MainActivity?) ?: return null
         context ?: return null
@@ -96,6 +97,10 @@ class HomeFragment : Fragment(), CoroutineScope {
         if (!isAdded)
             return
 
+        if (!manager.isNotificationPermissionGranted) {
+            manager.requestNotificationsPermission(activity, 0, false){}
+        }
+
         activity.bottomSheet.prependItems(
                 BottomSheetPrimaryItem(true)
                         .withTitle(R.string.menu_add_remove_cards)

app/src/main/java/pl/szczodrzynski/edziennik/ui/login/LoginChooserFragment.kt

@@ -23,8 +23,8 @@ import androidx.fragment.app.Fragment
 import androidx.recyclerview.widget.LinearLayoutManager
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import kotlinx.coroutines.*
-import pl.szczodrzynski.edziennik.*
-import pl.szczodrzynski.edziennik.data.api.*
+import pl.szczodrzynski.edziennik.App
+import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.databinding.LoginChooserFragmentBinding
 import pl.szczodrzynski.edziennik.ext.*
 import pl.szczodrzynski.edziennik.ui.dialogs.sync.RegisterUnavailableDialog
@@ -51,7 +51,8 @@ class LoginChooserFragment : Fragment(), CoroutineScope {
     private val job: Job = Job()
     override val coroutineContext: CoroutineContext
         get() = job + Dispatchers.Main
-
+    private val manager
+        get() = app.permissionManager
     // local/private variables go here
 
     override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
@@ -67,6 +68,9 @@ class LoginChooserFragment : Fragment(), CoroutineScope {
         if (!isAdded) return
 
         val adapter = LoginChooserAdapter(activity, this::onLoginModeClicked)
+        if (!manager.isNotificationPermissionGranted) {
+            manager.requestNotificationsPermission(activity, 0, false){}
+        }
 
         b.versionText.setText(
             R.string.login_chooser_version_format,

app/src/main/java/pl/szczodrzynski/edziennik/utils/managers/PermissionManager.kt

@@ -36,7 +36,13 @@ class PermissionManager(val app: App) : CoroutineScope {
             app.checkSelfPermission(name) == PackageManager.PERMISSION_GRANTED
         else
             true
-
+    val isNotificationPermissionGranted by lazy {
+        if (Build.VERSION.SDK_INT >= 33) {
+            app.checkSelfPermission(Manifest.permission.POST_NOTIFICATIONS) == PackageManager.PERMISSION_GRANTED
+        } else {
+            true
+        }
+    }
     private fun openPermissionSettings(activity: AppCompatActivity) {
         val intent = Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS)
         val uri = Uri.fromParts("package", app.packageName, null)
@@ -80,6 +86,10 @@ class PermissionManager(val app: App) : CoroutineScope {
                         .show()
                 }
                 result.hasPermanentDenied() -> {
+                    if (!isRequired) {
+                        onSuccess()
+                        return@launch
+                    }
                     MaterialAlertDialogBuilder(activity)
                         .setTitle(R.string.permissions_required)
                         .setMessage(R.string.permissions_denied)
@@ -92,6 +102,18 @@ class PermissionManager(val app: App) : CoroutineScope {
             }
         }
     }
+    fun requestNotificationsPermission(
+        activity: AppCompatActivity,
+        @StringRes permissionMessage: Int,
+        isRequired: Boolean = false,
+        onSuccess: suspend CoroutineScope.() -> Unit
+    ) = requestPermission(
+        activity,
+        permissionMessage,
+        isRequired,
+        Manifest.permission.POST_NOTIFICATIONS,
+        onSuccess
+    )
 
     fun requestStoragePermission(
         activity: AppCompatActivity,