Android开发之MediaPlayer基本使用方法详解

public class MediaPlayerStudy extends Activity {  private Button bplay,bpause,bstop;  private MediaPlayer mp = new MediaPlayer();  @Override  public void onCreate(BundlesavedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.main);    bplay =(Button)findViewById(R.id.play);    bpause =(Button)findViewById(R.id.pause);    bstop =(Button)findViewById(R.id.stop);    bplay.setOnClickListener(new OnClickListener(){      @Override      public void onClick(View v) {         try {           mp.setDataSource("/sdcard/test.mp3");           mp.prepare();           mp.start();         } catch (IllegalArgumentException e){           e.printStackTrace();         } catch (IllegalStateException e){           e.printStackTrace();         } catch (IOException e) {           e.printStackTrace();         }         mp.setOnCompletionListener(new OnCompletionListener(){           @Override           public void onCompletion(MediaPlayer mp){             mp.release();           }         });      }    });    bpause.setOnClickListener(new OnClickListener(){      @Override      public void onClick(View v) {         if(mp != null){           mp.pause();         }      }    });    bstop.setOnClickListener(new OnClickListener(){    @Override    public void onClick(View v) {       if(mp != null){        mp.stop();       }    }    });  }  @Override  protected void onDestroy() {    if(mp != null)      mp.release();    super.onDestroy();  }}