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    via vogella.com 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.

Solutions on the web

via GitHub by muhammad-naderi
, 1 year ago
Can't create handler inside thread that has not called Looper.prepare()
via Stack Overflow by LDG
, 1 year ago
Can't create handler inside thread that has not called Looper.prepare()
via Stack Overflow by n.onyshko
, 1 year ago
Can't create handler inside thread that has not called Looper.prepare()
via Stack Overflow by Manuli
, 2 years ago
via GitHub by RoundSparrow
, 1 year ago
Can't create handler inside thread that has not called Looper.prepare()
java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare()	at android.os.Handler.(Handler.java:200)	at android.os.Handler.(Handler.java:114)	at com.permissioneverywhere.PermissionRequest.enqueue(PermissionRequest.java:61)	at com.shygunsys.pocketcyber.locationservice.TLocationManager.updateLocation(TLocationManager.java:153)	at com.shygunsys.pocketcyber.locationservice.TLocationManager.reset(TLocationManager.java:348)	at com.shygunsys.pocketcyber.syncService.ShygunLocationSyncServicePost.DoSync(ShygunLocationSyncServicePost.java:88)	at com.shygunsys.pocketcyber.syncService.TShygunSyncService.doInBackground(TShygunSyncService.java:139)	at com.shygunsys.pocketcyber.syncService.TShygunSyncService.doInBackground(TShygunSyncService.java:33)	at android.os.AsyncTask$2.call(AsyncTask.java:295)	at java.util.concurrent.FutureTask.run(FutureTask.java:237)	at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)	at java.lang.Thread.run(Thread.java:818)