Can't create handler inside thread that has not called Looper.prepare()

Samebug tips1

Any worker thread runs in background, since it is not intended to loop, is not connected to a Looper.for example doInBackground(). its implementation returns will be passed to onPostExecute() which runs on the UI thread.

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  • via GitHub by zosocanuck
  • via Stack Overflow by Mrugesh Thaker
  • Stack trace

    • java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare() at android.os.Handler.<init>( at android.os.Handler.<init>( at android.widget.Toast$TN.<init>( at android.widget.Toast.<init>( at android.widget.Toast.makeText( at at java.lang.reflect.Method.invoke(Native Method) at org.greenrobot.eventbus.EventBus.invokeSubscriber( at org.greenrobot.eventbus.EventBus.postToSubscription( at org.greenrobot.eventbus.EventBus.postSingleEventForEventType( at org.greenrobot.eventbus.EventBus.postSingleEvent( at

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