Attempt to request notification permissions

codeguru42 · Aug 8, 2023 · e498249 · e498249
1 parent 7bfaae9
commit e498249
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Showing 2 changed files with 39 additions and 16 deletions.
diff --git a/app/src/main/java/codeguru/gocapture/MainActivity.kt b/app/src/main/java/codeguru/gocapture/MainActivity.kt
@@ -1,42 +1,39 @@
 package codeguru.gocapture
 
+import android.Manifest
 import android.app.NotificationChannel
 import android.app.NotificationManager
 import android.content.Context
+import android.content.pm.PackageManager
 import android.os.Build
 import android.os.Bundle
 import android.util.Log
-import androidx.activity.compose.rememberLauncherForActivityResult
 import androidx.activity.compose.setContent
 import androidx.activity.result.contract.ActivityResultContracts
 import androidx.appcompat.app.AppCompatActivity
-import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxSize
-import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.filled.Image
-import androidx.compose.material.icons.filled.PhotoCamera
-import androidx.compose.material3.Button
-import androidx.compose.material3.Icon
-import androidx.compose.material3.MaterialTheme
-import androidx.compose.material3.Surface
 import androidx.compose.runtime.Composable
-import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
-import androidx.compose.ui.platform.LocalContext
-import androidx.compose.ui.res.stringResource
-import androidx.core.content.FileProvider
-import androidx.navigation.NavController
+import androidx.core.content.ContextCompat
 import androidx.navigation.compose.rememberNavController
 import codeguru.gocapture.ui.theme.GoCaptureTheme
 import com.google.android.gms.tasks.OnCompleteListener
 import com.google.firebase.messaging.FirebaseMessaging
-import java.io.File
 
 class MainActivity : AppCompatActivity() {
     private val TAG: String = javaClass.name
     private val CHANNEL_ID: String = "Go Capture"
 
+    private val requestPermissionLauncher = registerForActivityResult(
+        ActivityResultContracts.RequestPermission(),
+    ) { isGranted: Boolean ->
+        if (isGranted) {
+            // FCM SDK (and your app) can post notifications.
+        } else {
+            // TODO: Inform user that that your app will not show notifications.
+        }
+    }
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContent {
@@ -81,6 +78,29 @@ class MainActivity : AppCompatActivity() {
             notificationManager.createNotificationChannel(channel)
         }
     }
+
+    fun requestNotificationPermission() {
+        // This is only necessary for API level >= 33 (TIRAMISU)
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+            if (
+                ContextCompat.checkSelfPermission(
+                    this,
+                    Manifest.permission.POST_NOTIFICATIONS
+                ) ==
+                PackageManager.PERMISSION_GRANTED
+            ) {
+                // FCM SDK (and your app) can post notifications.
+            } else if (shouldShowRequestPermissionRationale(Manifest.permission.POST_NOTIFICATIONS)) {
+                // TODO: display an educational UI explaining to the user the features that will be enabled
+                //       by them granting the POST_NOTIFICATION permission. This UI should provide the user
+                //       "OK" and "No thanks" buttons. If the user selects "OK," directly request the permission.
+                //       If the user selects "No thanks," allow the user to continue without notifications.
+            } else {
+                // Directly ask for the permission
+                requestPermissionLauncher.launch(Manifest.permission.POST_NOTIFICATIONS)
+            }
+        }
+    }
 }
 
 @Composable

diff --git a/app/src/main/java/codeguru/gocapture/ui/ImageScreen.kt b/app/src/main/java/codeguru/gocapture/ui/ImageScreen.kt
@@ -21,6 +21,7 @@ import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.stringResource
 import androidx.navigation.NavHostController
 import codeguru.gocapture.GoCaptureRepository
+import codeguru.gocapture.MainActivity
 import codeguru.gocapture.R
 import coil.compose.AsyncImage
 import kotlinx.coroutines.CoroutineScope
@@ -54,8 +55,10 @@ private fun UploadButton(
     repository: GoCaptureRepository,
     imageUri: String?
 ) {
+    val activity = LocalContext.current as MainActivity
     FloatingActionButton(
         onClick = {
+            activity.requestNotificationPermission()
             setIsProcessing(true)
             CoroutineScope(Dispatchers.IO).launch {
                 repository.processImage(Uri.parse(imageUri))