java - my soundpool project won't play properly? -

i've been trying implement soundpool class (with tutorial) when try run on virtual device, sound won't play... main_activity xml file loads fine, expected on loading, sound played.

here source code.

public class mainactivity extends activity {  private soundpool soundpool; private boolean soundpoolloaded = false;  @override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_main);      // create new soundpool instance.     // 2 = number of sounds can simultaneously played     // audiomanager.stream_music = type of sound stream. stream_music common 1     // 0 = sound quality, default 0.     // setonloadcompletelistener loads file      soundpool = new soundpool(2, audiomanager.stream_music, 0);     soundpool.setonloadcompletelistener(new onloadcompletelistener() {         @override         public void onloadcomplete(soundpool soundpool, int sampleid, int status) {             soundpoolloaded = true;         }     });      playsound("car_phonic"); }   // method load sound resource res/raw folder input name given string (soundname). // if sound resource found name, attempt play sound // soundpoolloaded value becomes true when file loaded public void playsound(string soundname) {     if(soundpoolloaded == true)     {         // current context resources , find correct sound resource playing sound         resources res = this.getresources();         int soundid = 0;         soundid = res.getidentifier(soundname, "raw", this.getpackagename());          if(soundid != 0){            soundpool.play(soundid, 1, 1, 0, 0, 1);         }           systemclock.sleep(500);         playsound(soundname);      }     } } 

any appreciated!

• play() takes soundid returned soundpools load(), not generic android resource id
• onloadcomplete called sound file finishes loading, notice sampleid argument

so, in it's basic form:

soundpool.setonloadcompletelistener(new onloadcompletelistener() {     @override     public void onloadcomplete(soundpool soundpool, int sampleid, int status) {         soundpool.play(sampleid, 1, 1, 0, 0, 1);     } });  soundpool.load(this, r.raw.car_phonic, 0); 

note soundpool loads data in background samples not available.