Fixing "firebase + audio_service: application launched when it should not" by @yanivshaked hack

audio_service/android/src/main/java/com/ryanheise/audioservice/AudioServiceActivity.java

@@ -10,6 +10,7 @@
 public class AudioServiceActivity extends FlutterActivity {
     @Override
     public FlutterEngine provideFlutterEngine(@NonNull Context context) {
+        AudioServicePlugin.setArmStartup(true);
         return AudioServicePlugin.getFlutterEngine(context);
     }
 }

audio_service/android/src/main/java/com/ryanheise/audioservice/AudioServicePlugin.java

@@ -57,6 +57,10 @@
  * AudioservicePlugin
  */
 public class AudioServicePlugin implements FlutterPlugin, ActivityAware {
+    private static boolean armStartup = false;
+    public static synchronized void setArmStartup(boolean enabled) {
+        armStartup = enabled;
+    }
     private static String flutterEngineId = "audio_service_engine";
     /** Must be called BEFORE any FlutterEngine is created. e.g. in Application class. */
     public static void setFlutterEngineId(String id) {
@@ -65,7 +69,11 @@ public static void setFlutterEngineId(String id) {
     public static String getFlutterEngineId() {
         return flutterEngineId;
     }
+
     public static synchronized FlutterEngine getFlutterEngine(Context context) {
+        if (armStartup == false) {
+            return null;
+        }
         FlutterEngine flutterEngine = FlutterEngineCache.getInstance().get(flutterEngineId);
         if (flutterEngine == null) {
             // XXX: The constructor triggers onAttachedToEngine so this variable doesn't help us.

audio_service/pubspec.yaml

@@ -1,6 +1,6 @@
 name: audio_service
 description: Flutter plugin to play audio in the background while the screen is off.
-version: 0.18.9
+version: 0.18.12
 homepage: https://github.com/ryanheise/audio_service/tree/master/audio_service
 
 environment:
@@ -58,4 +58,4 @@ flutter:
       macos:
         pluginClass: AudioServicePlugin
       web:
-        default_package: audio_service_web
+        default_package: audio_service_web