android - IllegalStateException in one of the handlers -


i having following exception, can't understand reason this. tried googling, failed find proper solution. can please let me know causing exception.

java.lang.illegalstateexception: specified message queue synchronization  barrier token has not been posted or has been removed. 09-09 15:28:53.967: w/system.err(20676):    @ android.os.messagequeue.removesyncbarrier(messagequeue.java:266) 09-09 15:28:53.967: w/system.err(20676):    @ android.os.looper.removesyncbarrier(looper.java:242) 09-09 15:28:53.967: w/system.err(20676):    @ android.view.viewrootimpl.dotraversal(viewrootimpl.java:1222) 09-09 15:28:53.967: w/system.err(20676):    @ android.view.viewrootimpl$traversalrunnable.run(viewrootimpl.java:5089) 09-09 15:28:53.967: w/system.err(20676):    @ android.view.choreographer$callbackrecord.run(choreographer.java:791) 09-09 15:28:53.967: w/system.err(20676):    @ android.view.choreographer.docallbacks(choreographer.java:591) 09-09 15:28:53.967: w/system.err(20676):    @ android.view.choreographer.doframe(choreographer.java:561) 09-09 15:28:53.967: w/system.err(20676):    @ android.view.choreographer$framedisplayeventreceiver.run(choreographer.java:777) 09-09 15:28:53.967: w/system.err(20676):    @ android.os.handler.handlecallback(handler.java:725) 09-09 15:28:53.967: w/system.err(20676):    @ android.os.handler.dispatchmessage(handler.java:92) 09-09 15:28:53.967: w/system.err(20676):    @ android.os.looper.loop(looper.java:137) 09-09 15:28:53.967: w/system.err(20676):    @ android.app.activitythread.main(activitythread.java:5283) 09-09 15:28:53.967: w/system.err(20676):    @ java.lang.reflect.method.invokenative(native method) 09-09 15:28:53.967: w/system.err(20676):    @ java.lang.reflect.method.invoke(method.java:511) 09-09 15:28:53.967: w/system.err(20676):    @ com.android.internal.os.zygoteinit$methodandargscaller.run(zygoteinit.java:1102) 09-09 15:28:53.967: w/system.err(20676):    @ com.android.internal.os.zygoteinit.main(zygoteinit.java:869) 09-09 15:28:53.967: w/system.err(20676):    @ dalvik.system.nativestart.main(native method)

i not paste code because huge code working on handler. written people on years.

thanks sash_kp link solved issue. had seen it, earlier not sure handler causing issue.

this issue solved changing calls handler's sendmessage method, dispatchmessage.


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