java.lang.RuntimeException

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 afarra
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  • via Stack Overflow by SirHowy
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  • Stack trace

    • java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare() at android.os.Handler.<init>(Handler.java:121) at android.widget.Toast.<init>(Toast.java:68) at android.widget.Toast.makeText(Toast.java:231) at com.quran.labs.androidquran.service.QuranDataService$DownloadThread.resumeDownload(QuranDataService.java:344) at com.quran.labs.androidquran.service.QuranDataService$DownloadThread.run(QuranDataService.java:437)

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