Android MediaPlayer play m3u8 only audio streamming not worked -

hi every 1 write code play fm radio waves. in code there progressbar , 2 buttons 1 of them play , stop. when click play button not happen. how can solve problem? or there suggest me play audio m3u8 files?
code i'm using is:

    public class main extends activity implements onclicklistener {      private progressbar playseekbar;      private button buttonplay;      private button buttonstopplay;      private mediaplayer player;      /** called when activity first created. */     @override     public void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         setcontentview(r.layout.main);          initializeuielements();          initializemediaplayer();      }      private void initializeuielements() {          playseekbar = (progressbar) findviewbyid(r.id.progressbar1);         playseekbar.setmax(100);         playseekbar.setvisibility(view.invisible);          buttonplay = (button) findviewbyid(r.id.buttonplay);         buttonplay.setonclicklistener(this);          buttonstopplay = (button) findviewbyid(r.id.buttonstopplay);         buttonstopplay.setenabled(false);         buttonstopplay.setonclicklistener(this);      }      public void onclick(view v) {         if (v == buttonplay) {             startplaying();         } else if (v == buttonstopplay) {             stopplaying();         }     }      private void startplaying() {         buttonstopplay.setenabled(true);         buttonplay.setenabled(false);          playseekbar.setvisibility(view.visible);          player.prepareasync();          player.setonpreparedlistener(new onpreparedlistener() {              public void onprepared(mediaplayer mp) {                 player.start();             }         });      }      private void stopplaying() {         if (player.isplaying()) {             player.stop();             player.release();             initializemediaplayer();         }          buttonplay.setenabled(true);         buttonstopplay.setenabled(false);         playseekbar.setvisibility(view.invisible);     }      private void initializemediaplayer() {         player = new mediaplayer();         try {              player.setdatasource("http://url.m3u8");         } catch (illegalargumentexception e) {             e.printstacktrace();         } catch (illegalstateexception e) {             e.printstacktrace();         } catch (ioexception e) {             e.printstacktrace();         }          player.setonbufferingupdatelistener(new onbufferingupdatelistener() {              public void onbufferingupdate(mediaplayer mp, int percent) {                 playseekbar.setsecondaryprogress(percent);                 log.i("buffering", "" + percent);             }         });     }      @override     protected void onpause() {         super.onpause();         if (player.isplaying()) {             player.stop();         }     } } 

i solve problem vitamio library. thanks