handle camera permission for profile pic upload

app/src/main/java/sh/sar/basedbank/ui/home/SettingsLoginsFragment.kt

@@ -1,7 +1,10 @@
 package sh.sar.basedbank.ui.home
 
+import android.Manifest
 import android.content.Context
 import android.content.Intent
+import android.content.pm.PackageManager
+import android.provider.Settings as AndroidSettings
 import android.graphics.Bitmap
 import android.graphics.BitmapFactory
 import android.net.Uri
@@ -15,6 +18,7 @@ import android.widget.ImageView
 import android.widget.LinearLayout
 import android.widget.TextView
 import androidx.activity.result.contract.ActivityResultContracts
+import androidx.core.content.ContextCompat
 import androidx.core.content.FileProvider
 import androidx.fragment.app.Fragment
 import androidx.fragment.app.activityViewModels
@@ -77,6 +81,29 @@ class SettingsLoginsFragment : Fragment() {
         handlePickedImage(bitmap)
     }
 
+    private val cameraPermissionLauncher = registerForActivityResult(
+        ActivityResultContracts.RequestPermission()
+    ) { granted ->
+        if (granted) cameraLauncher.launch(cameraPhotoUri ?: return@registerForActivityResult)
+        else showCameraPermissionRationale()
+    }
+
+    private fun showCameraPermissionRationale() {
+        val ctx = requireContext()
+        MaterialAlertDialogBuilder(ctx)
+            .setTitle(R.string.qr_camera_permission_title)
+            .setMessage(R.string.camera_permission_profile_message)
+            .setNegativeButton(R.string.cancel) { dialog, _ -> dialog.dismiss() }
+            .setPositiveButton(R.string.go_to_settings) { _, _ ->
+                startActivity(
+                    Intent(AndroidSettings.ACTION_APPLICATION_DETAILS_SETTINGS).apply {
+                        data = Uri.fromParts("package", ctx.packageName, null)
+                    }
+                )
+            }
+            .show()
+    }
+
     private fun loadAndScaleBitmap(uri: Uri): Bitmap? {
         return try {
             val ctx = requireContext()
@@ -159,7 +186,11 @@ class SettingsLoginsFragment : Fragment() {
             val photoFile = File(ctx.cacheDir, "profile_photo_tmp.jpg")
             val uri = FileProvider.getUriForFile(ctx, "${ctx.packageName}.fileprovider", photoFile)
             cameraPhotoUri = uri
-            cameraLauncher.launch(uri)
+            if (ContextCompat.checkSelfPermission(ctx, Manifest.permission.CAMERA) == PackageManager.PERMISSION_GRANTED) {
+                cameraLauncher.launch(uri)
+            } else {
+                cameraPermissionLauncher.launch(Manifest.permission.CAMERA)
+            }
         }
         if (target is PendingImageTarget.Mib || currentBitmap != null || hasSavedImage(ctx, target)) {
             items += Triple(R.drawable.ic_delete, getString(R.string.profile_image_remove)) {

app/src/main/res/values/strings.xml

@@ -243,6 +243,7 @@
     <string name="transfer_qr_invalid">Invalid or unsupported QR code</string>
     <string name="qr_camera_permission_title">Camera permission required</string>
     <string name="qr_camera_permission_message">Camera access is needed to scan QR codes. Please grant the permission in Settings.</string>
+    <string name="camera_permission_profile_message">Camera access is needed to take a photo. Please grant the permission in Settings.</string>
     <string name="go_to_settings">Go to Settings</string>
     <string name="transfer_select_source_first">Select a source account first</string>
     <string name="transfer_enter_account_first">Enter an account number first</string>