Check permissions and display message on AAuto

Signed-off-by: Keith Conger <keith.conger@blackboxembedded.com>

Author: blackboxembedded

app/src/main/java/com/blackboxembedded/WunderLINQ/AAuto/AAutoScreen.java

@@ -37,6 +37,7 @@
 import android.content.Intent;
 import android.content.IntentFilter;
 import android.content.SharedPreferences;
+import android.content.pm.PackageManager;
 import android.graphics.drawable.Drawable;
 import android.preference.PreferenceManager;
 import android.util.Log;
@@ -85,6 +86,34 @@ public AAutoScreen(CarContext carContext) {
     @NonNull
     @Override
     public Template onGetTemplate() {
+        Context context = getCarContext();
+
+        // Check for critical permissions used by this screen
+        boolean hasLocation = ContextCompat.checkSelfPermission(
+                context, android.Manifest.permission.ACCESS_FINE_LOCATION)
+                == PackageManager.PERMISSION_GRANTED;
+
+        boolean hasBluetooth = ContextCompat.checkSelfPermission(
+                context, android.Manifest.permission.BLUETOOTH_CONNECT)
+                == PackageManager.PERMISSION_GRANTED;
+
+        // If either permission missing, show a friendly placeholder template
+        if (!hasLocation || !hasBluetooth) {
+            StringBuilder message = new StringBuilder(MyApplication.getContext().getString(R.string.permission_required_message));
+
+            return new androidx.car.app.model.MessageTemplate.Builder(message.toString())
+                    .setTitle(MyApplication.getContext().getString(R.string.permission_required))
+                    .setHeaderAction(Action.APP_ICON)
+                    .addAction(
+                            new Action.Builder()
+                                    .setTitle("Retry")
+                                    .setOnClickListener(this::invalidate)
+                                    .build()
+                    )
+                    .build();
+        }
+
+        // Safe to show real UI now
         return tabTemplate;
     }
 

app/src/main/java/com/blackboxembedded/WunderLINQ/Utils/Utils.java

@@ -21,6 +21,7 @@
 import android.graphics.Canvas;
 import android.graphics.drawable.Drawable;
 import android.os.Build;
+import android.util.Log;
 
 import com.blackboxembedded.WunderLINQ.MemCache;
 import com.blackboxembedded.WunderLINQ.MyApplication;
@@ -38,6 +39,8 @@
 
 public class Utils {
 
+    private static final String TAG = "Utils";
+
     public static final String LATITUDE_PATTERN="^(\\+|-)?(?:90(?:(?:\\.0{1,8})?)|(?:[0-9]|[1-8][0-9])(?:(?:\\.[0-9]{1,8})?))$";
     public static final String LONGITUDE_PATTERN="^(\\+|-)?(?:180(?:(?:\\.0{1,8})?)|(?:[0-9]|[1-9][0-9]|1[0-7][0-9])(?:(?:\\.[0-9]{1,8})?))$";
 
@@ -263,6 +266,12 @@ public static String bearingToCardinal(Integer bearingValue) {
     }
 
     public static Bitmap drawableToBitmap(Drawable drawable) {
+
+        if (drawable == null) {
+            Log.e(TAG, "drawableToBitmap: drawable is null!");
+            return null;
+        }
+
         // Determine the size of the Drawable
         int width = drawable.getIntrinsicWidth();
         int height = drawable.getIntrinsicHeight();

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

@@ -494,6 +494,9 @@
     <string name="systemvolume_title">System Volume</string>
     <!-- SettingsActivity -->
     <string name="title_activity_settings">Settings</string>
+    <!-- AAutoScreen -->
+    <string name="permission_required">Permissions Required</string>
+    <string name="permission_required_message">Please ensure all permissions are granted to the mobile device.</string>
     <!-- Preference strings -->
     <string name="info_title">Personal Information</string>
     <string name="pref_homeAddress_name">Home Address</string>