Services: Unable to start service Intent

Open Source Development Extension Development
1

Hi
I wanted to run a piece of code in a background service so today I tried to test Services in AI2.
(this extension will be open source and free)
Here is the code:

//Start method

       try {
            context.startService(new Intent(context,BgService.class)
            .putExtra("PROCEDURE_NAME",procedureName));
        } catch (Exception e) {
            e.printStackTrace();
            Toast.makeText(context,e.getMessage(),Toast.LENGTH_LONG);
        }

//BgService class

public class BgService extends Service {
        public Context mContext;
        public NotificationManagerCompat notificationManager;
        public BgService(){
            super();
        }

        @Override
        public IBinder onBind(Intent intent) {
            return null;
        }

        @Override
        public void onCreate() {
            super.onCreate();
            mContext = getApplicationContext();
            notificationManager = NotificationManagerCompat.from(mContext);
        }

        @Override
        public int onStartCommand(Intent intent, int flags, int startId) {
            NotificationCompat.Builder builder = new NotificationCompat.Builder(mContext,mContext.getApplicationInfo().name);
            //builder.setContentTitle(title);
            builder.setContentText("Service started by user");
            builder.setAutoCancel(false);
            builder.setVisibility(1);
            builder.setPriority(1);
            notificationManager.notify(12345,builder.build());
            //Toast.makeText(context, "Service started by user.", Toast.LENGTH_LONG).show();
            return super.onStartCommand(intent, flags, startId);
        }

        @Override
        public void onDestroy() {
            //Toast.makeText(context, "Service stopped by user.", Toast.LENGTH_LONG).show();
            //notificationManager.cancel(12345);
            NotificationCompat.Builder builder = new NotificationCompat.Builder(mContext,mContext.getApplicationInfo().name);
            //builder.setContentTitle(title);
            builder.setContentText("Service stopped by user");
            builder.setAutoCancel(false);
            builder.setVisibility(1);
            builder.setPriority(1);
            notificationManager.notify(12345,builder.build());
            super.onDestroy();
        }
    }

//Uses Services annotation

@UsesServices(services = {@ServiceElement(exported = "false",name = "com.sunny.BackgroundTask.BackgoundTask$BgService")})

I have also tried with 1) a period, and 2)without package

Here is the error I am getting:

Unable to start service Intent { cmp=appinventor.ai_vknow360.CustomWebView/com.sunny.BackgroundTask.BackgroundTask$BgService } U=0: not found

Thank you :slight_smile:

3 Likes
2

Kindly have a look here Sir @ewpatton

3

probably because an r is missing there?
Unbenannt

Taifun

Trying to push the limits! Snippets, Tutorials and Extensions from Pura Vida Apps by Taifun.

3 Likes
4

Thank you.
However I am sure that it should always work with period i.e. .BgService but actually it does not work.

5

My guess is that it's failing because your Service subclass is nested (based on the $ in the name) but the class isn't static. This implies that there is a constructor that takes the outer class as an implicit this, which means that Android can't construct it (the Service constructor must be nullary).

3 Likes
6

Thank you @Taifun and @ewpatton
Now it works fine after:-

  1. adding r to class name
  2. making the class static
2 Likes