java - How to make a toast in an onfailure method -


so use okhttp in separate service fetch data twitter api. have been trying alert user tweets cannot loaded without internet connection. when try this, application crashes.the error : java.lang.runtimeexception: can't create handler inside thread has not called looper.prepare(). here's code 

 private void gettweets(final string topic) {     final twitterservice twitterservice = new twitterservice();     twitterservice.findtweets(topic, new callback() {         @override         public void onfailure(request request, ioexception e) {             e.printstacktrace();             log.e("traffic activity", "failed make api call");             toast.maketext(getapplicationcontext(), "bigger fail", toast.length_long).show();          }

probably calling toast.maketext wrong thread. needs called ui thread. try instead

activity.runonuithread(new runnable() {     public void run() {         toast.maketext(activity, msg, toast.length_short).show();     } });

more informations here can't create handler inside thread has not called looper.prepare()


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