android - The correct way of using Mediaplayer to show Streaming Videos -

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i've been looking best way of playing videos. tried many ways, in someway couldn't see video , heard audio. , showed video stop playing in 5 seconds. tried understand lifecycle , everytime try make work happens.

here code i've been struggling past 6 days. don't know wrong make app crash. can give me best implementation of media player streaming videos using media player?

package playingpackage;  import android.app.fragment; import android.app.progressdialog; import android.media.audiomanager; import android.media.mediaplayer; import android.os.asynctask; import android.os.bundle; import android.support.annotation.nullable; import android.view.layoutinflater; import android.view.surfaceholder; import android.view.surfaceview; import android.view.view; import android.view.viewgroup;  import com.example.ptivi.ptivi.r;  import java.io.ioexception;  /**  * created peyam on 2015-07-22.  */ public class playvideo extends fragment implements mediaplayer.onpreparedlistener, surfaceholder.callback {     private surfaceview surfaceview;     private mediaplayer mediaplayer = new mediaplayer();     private string uri;     private progressdialog pdialog;     private surfaceholder surfaceholder;      @nullable     @override     public view oncreateview(layoutinflater inflater, viewgroup container, bundle savedinstancestate) {         view v = inflater.inflate(r.layout.playvideo, container, false);         uri = getarguments().getstring("url", "http://176.28.44.168:1935/live/_definst_/livestream/playlist.m3u8");         surfaceview = (surfaceview) v.findviewbyid(r.id.surfaceview);         new asynctask<void, void, void>() {             @override             protected void doinbackground(void... params) {                 play();                 return null;             }         }.execute();           return v;      }      private void play() {         surfaceholder = surfaceview.getholder();         surfaceholder.addcallback(this);         surfaceholder.settype(surfaceholder.surface_type_push_buffers);          mediaplayer.setaudiostreamtype(audiomanager.stream_music);         mediaplayer.setaudiostreamtype(audiomanager.stream_notification);         mediaplayer.setdisplay(surfaceholder);          // create pdialog         pdialog = new progressdialog(getactivity());         //setting title         pdialog.settitle("loading...");         // set progressbar message         pdialog.setmessage("please wait");         pdialog.setindeterminate(false);         pdialog.setcancelable(false);         // show progressbar         pdialog.show();           try {             mediaplayer.setdatasource(uri);         } catch (illegalargumentexception | illegalstateexception | ioexception | securityexception e) {             e.printstacktrace();         }         try {             mediaplayer.setonpreparedlistener(this);             mediaplayer.prepareasync();         } catch (illegalstateexception e) {             e.printstacktrace();         }     }       @override     public void onprepared(mediaplayer mp) {         mp.start();      }      @override     public void onpause() {         super.onpause();         mediaplayer.release();     }      @override     public void ondestroy() {         super.ondestroy();         mediaplayer.stop();     }      @override     public void surfacecreated(surfaceholder holder) {      }      @override     public void surfacechanged(surfaceholder holder, int format, int width, int height) {      }      @override     public void surfacedestroyed(surfaceholder holder) {      } }

i used exoplayer demo in order play videos. don't use emulator doesn't encode lots of videos


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