java仿微信摇一摇实现播放音乐

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public class ShakeActivity extends AppCompatActivity implements SensorEventListener {

  private ImageView ivUp;
  private ImageView ivDown;
  private SensorManager sensorManager;
  private Vibrator vibrator;
  private Sensor sensor;
  private MediaPlayer player;
  private ObjectAnimator upAnimator;
  private ObjectAnimator downAnimator;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_shake);
    ivUp = ((ImageView) findViewById(R.id.hand_up));
    ivDown = ((ImageView) findViewById(R.id.hand_down));
    //获取传感器管理者
    sensorManager = ((SensorManager) getSystemService(SENSOR_SERVICE));
    //实例化手机震动的对象
    vibrator = ((Vibrator) getSystemService(VIBRATOR_SERVICE));
    //获取加速度传感器
    sensor = sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
    /*实例化对象,参数:同时播放的流的最大数量,即同时播放的音乐数的上限;
      流的类型,一般都是使用AudioManager.STREAM_MUSIC表示可以重复播放
      采样率转化质量,但是现在该功能还不能生效,建议用0
    */
//    soundPool = new SoundPool(1, AudioManager.STREAM_MUSIC, 0);
    //参数三没有效果,建议用1
//    loadId = soundPool.load(ShakeActivity.this, R.raw.three, 1);
    player = MediaPlayer.create(this, R.raw.music);
    initAnimation();

  }

  private void initAnimation() {
    //上下两张图片的动画
    upAnimator = ObjectAnimator.ofFloat(ivUp, "translationY", 0, -200, 0);
    upAnimator.setInterpolator(new AccelerateDecelerateInterpolator());
    upAnimator.setDuration(2000);
    downAnimator = ObjectAnimator.ofFloat(ivDown, "translationY", 0, 200, 0);
    downAnimator.setInterpolator(new AccelerateDecelerateInterpolator());
    downAnimator.setDuration(2000);
  }

  @Override
  protected void onResume() {
    super.onResume();
    if (sensorManager != null) {
    //注册监听器,监听,传感器,获取传感器的频率
    sensorManager.registerListener(this, sensor, SensorManager.SENSOR_DELAY_NORMAL);
    }

  }

  @Override
  protected void onPause() {
    super.onPause();
    if (sensorManager != null) {
      //取消监听器
      sensorManager.unregisterListener(this);
      //释放音频资源
//    soundPool.unload(loadId);
    }
  }

  @Override
  protected void onDestroy() {
    super.onDestroy();
    player.release();

  }

  @Override
  public void onSensorChanged(SensorEvent event) {
    //获取传感器信息改变时的数据
    float[] values = event.values;
    //x轴方向的重力加速度,向右为正
    float x = values[0];
    //y轴方向的重力加速度,向左为正
    float y = values[1];
    //z轴方向的重力加速度,向上为正
    float z = values[2];
    //一般在这三个方向的重力加速度达到40就达到了摇晃手机的状态
    int value = 18;
    if (Math.abs(x) > value || Math.abs(y) > value || Math.abs(z) > 19) {
      long patter[] = {200, 1000};
      vibrator.vibrate(patter,1);
      upAnimator.start();
      downAnimator.start();
      /*
      1f:左声道音量
      1f:右声道音量
      1:音频的优先级,值越大优先级越高,
      0:循环播放的次数,0为播放一次,-1为无限循环,其他值为loop+1次数
      1f:播放速率,范围0.5-2.0(1为正常速率)
       */
//      soundPool.play(loadId, 1f, 1f, 1, 0, 1f);
      if (player.isPlaying()) {
        player.seekTo(0);
      }else{
        player.start();
      }
    }
  }

  @Override
  public void onAccuracyChanged(Sensor sensor, int accuracy) {

  }
}