view - Android AsyncTask accessing and updating VideoView -


i need monitor buffer percentage of videoview continuously while video playing on foreground. created asynctask class , passed videoview on class. however, when try access buffer percentage return 0. initialized , started video playback on oncreate method of main activity. code:

     public class mainactivity extends activity {  static mediacontroller mc; static videoview vw;  /** called when activity first created. */ @override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     requestwindowfeature(window.feature_no_title);     getwindow().setflags(windowmanager.layoutparams.flag_fullscreen,             windowmanager.layoutparams.flag_fullscreen);     setcontentview(r.layout.activity_main);      mc = new mediacontroller(this);      vw = (videoview) findviewbyid(r.id.videoview);      vw.setvideopath("http://173.45.164.105:1935/live/mystream/playlist.m3u8");     vw.requestfocus();     vw.start();      // execute async task stream error     conncheck cc = new conncheck();     cc.execute();      log.i("reached main", "started playing"); }

}

    class conncheck extends asynctask<void, void, void>{   @override protected void doinbackground(void... params) {     while (mainactivity.vw.isplaying() == true) {          log.i("hey", "doing stuff");     }     return null; }

you starting video in oncreate() method, @ instant has not started playing , execute asynctask after starting video. when doinbackground() exceuted, mainactivity.vw.isplaying() returns false , hence vm never enters loop have created. hope understand difference between started , playing.
, solution of problem implement method 

public abstract void onbufferingupdate (mediaplayer mp, int percent)

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