android - How to play, pause and stop a song with only one button? -

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i have tried make application in android play, pause , stop song 1 button only.

can show me how can make application?

final button bplay = (button)findviewbyid(r.id.bplay);             mediaplayer song1 = mediaplayer.create(tutorialfour.this, r.raw.fluet);         button bstop = (button)findviewbyid(r.id.bstop);         bplay.setwidth(10);         song1.setoncompletionlistener(new oncompletionlistener() {              public void oncompletion(mediaplayer mp) {                  bplay.settext("play");               }         });         bplay.setonclicklistener(new view.onclicklistener() {              public void onclick(view v) {                 // todo auto-generated method stub                 b=true;                  if(bplay.gettext().equals("play") && b==true)                 {                      song1.start();                      bplay.settext("pause");                     b=false;                 }                  else if(bplay.gettext().equals("pause"))                 {                     x=song1.getcurrentposition();                     song1.pause();                     bplay.settext("resume");                     log.v("log",""+x);                     b=false;                 }                 else if(bplay.gettext().equals("resume") && b==true)                 {                     song1.seekto(x);                     song1.start();                     bplay.settext("pause");                     b=false;                 }               }          });

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