Android MediaPlayer IllegalStateException -


i trying play audio file in eclipse using mediaplayer in android programming. need run audio file (.wav or .mp3) saved on computer hard-drive. have tried many things. tried copying file in res folder of project, nothing worked. below code. can see have tried many ways , commented some. first getting ioexception earlier. after using mediaplayer.create(), getting illegalstateexception. appreciated. 

public void playsound(mainactivity mainactivity){     system.out.println("in playsound");     mediaplayer mp = null;     fileinputstream fis = null;       try {          //fis = new fileinputstream("c:\\users\\anupam-pc\\downloads\\trailsoundfilerecordings\\jagmeet.wav");           //mp.setdatasource(fis.getfd());          system.out.println("inside try");          //mp.setdatasource("/res/raw/hai.wav");          //mp.setdatasource("c:\\users\\anupam-pc\\downloads\\trailsoundfilerecordings\\jagmeet.wav");          //mp.setdatasource("android.resource://com.example.texttospeech/agreji.mp3");          //mp.setdatasource("agreji.mp3");           mp = mediaplayer.create(mainactivity, r.raw.hai);          system.out.println("after ds");          mp.prepare();          system.out.println("after prepare");             mp.start();             // fis.close();         } catch (exception e) {             system.out.println(e);         } finally{             try{                 fis.close();             } catch (exception e){              }         }

you don't need implement mp.prepare();, have create(/**/)

this example works charm:

class vulcan implements mediaplayer.onpreparedlistener{  mediaplayer mediaplayer = null; ...  boolean isprepearedtoplayaudio = false;   mediaplayer=mediaplayer.create(context,r.raw.mini_vulcan_gun_1);  mediaplayer.setonpreparedlistener(this);   public void stop(){      mediaplayer.pause(); }   public void start(){      if(isprepearedtoplayaudio){                mediaplayer.start();        mediaplayer.setlooping( true );             }  }   @override public void onprepared(mediaplayer mp) {     isprepearedtoplayaudio = true; }

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