How to create toast from IntentService? It gets stuck on the screen

Question

I'm trying to have my IntentService show a Toast message, but when sending it from the onHandleIntent message, the toast shows but gets stuck and the screen and never leaved. I'm guessing its because the onHandleIntent method does not happen on the main service thread, but how can I move it?

Has anyone has this issue and solved it?

Answer 1

in onCreate() initialize a Handler and then post to it from your thread.

private class DisplayToast implements Runnable{   String mText;    public DisplayToast(String text){     mText = text;   }    public void run(){      Toast.makeText(mContext, mText, Toast.LENGTH_SHORT).show();   } } protected void onHandleIntent(Intent intent){     ...   mHandler.post(new DisplayToast("did something"));  } 

Answer 2

Here is the full IntentService Class code demonstrating Toasts that helped me:

package mypackage;  import android.app.IntentService; import android.content.Intent; import android.os.Handler; import android.os.Looper; import android.widget.Toast;  public class MyService extends IntentService {     public MyService() { super("MyService"); }      public void showToast(String message) {         final String msg = message;         new Handler(Looper.getMainLooper()).post(new Runnable() {             @Override             public void run() {                 Toast.makeText(getApplicationContext(), msg, Toast.LENGTH_LONG).show();             }         });     }      @Override     protected void onHandleIntent(Intent intent) {         showToast("MyService is handling intent.");     } }