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  1. ,
    via by Unknown author

    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 kasim1011
, 1 year ago
java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare()	at android.os.Handler.(	at android.os.AsyncTask$InternalHandler.(	at android.os.AsyncTask$InternalHandler.(	at android.os.AsyncTask.(	at android.content.ContentProvider.attachInfo(	at	at	at$ApplicationContentResolver.acquireProvider(	at android.content.ContentResolver.acquireProvider(	at android.content.ContentResolver.acquireContentProviderClient(	at android.content.AbstractThreadedSyncAdapter$