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

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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
, 10 months 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$2.call(AsyncTask.java:295)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
at java.lang.Thread.run(Thread.java:818)

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