java仿微信摇一摇实现播放音乐

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"  xmlns:tools="http://schemas.android.com/tools"  android:id="@+id/activity_shake"  android:layout_width="match_parent"  android:layout_height="match_parent"  tools:context="com.sq.dissertation.activity.ShakeActivity"  android:background="#1d1d1d"><ImageView  android:layout_width="wrap_content"  android:layout_height="wrap_content"  android:layout_centerInParent="true"  android:src="@mipmap/shakehideimg_man2"/>  <LinearLayout    android:layout_width="match_parent"    android:layout_height="match_parent"    android:gravity="center"    android:orientation="vertical">    <ImageView      android:id="@+id/hand_up"      android:layout_width="wrap_content"      android:layout_height="wrap_content"      android:src="@mipmap/shake_logo_up"/>    <ImageView      android:id="@+id/hand_down"      android:layout_width="wrap_content"      android:layout_height="wrap_content"      android:src="@mipmap/shake_logo_down"/>  </LinearLayout></RelativeLayout>

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) {  }}