android 心跳效果

public class MainActivity extends Activity {
Vibrator vibrator;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
    }
   
    @Override
    protected void onStop() {
    super.onStop();
    if(null!=vibrator){
    vibrator.cancel();
    }
    }
   
    @Override
    public boolean onTouchEvent(MotionEvent event) {
    if(event.getAction() == MotionEvent.ACTION_DOWN){
    vibrator = (Vibrator) getSystemService(VIBRATOR_SERVICE);
    long[] pattern = {800, 50, 400, 30}; // OFF/ON/OFF/ON...
    vibrator.vibrate(pattern, 2);//-1不重复，非-1为从pattern的指定下标开始重复
    }
    return super.onTouchEvent(event);
    }
}



权限：
    <uses-permission android:name="android.permission.VIBRATE"></uses-permission>