Android实现摇一摇简单功能

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

public class MainActivity extends BaseActivity implements SensorEventListener {
 
  private TextView tv_sensor;
  private SensorManager mSensorMgr;//声明一个传感管理器对象
  private Vibrator mVibrator;//声明一个震动器对象
 
  @Override
  protected MvcBaseModel getModelImp() {
    return null;
  }
 
  @Override
  protected int getContentLayoutId() {
    return R.layout.activity_main;
  }
 
  @Override
  protected void initWidget() {
    tv_sensor = findViewById(R.id.tv_sensor);
    //从系统服务中获取传感管理器对象
    mSensorMgr = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
    //从系统服务中获取振动器对象
    mVibrator = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
  }
 
  @Override
  protected void onPause() {
    super.onPause();
    mSensorMgr.unregisterListener(this);
  }
 
  @Override
  protected void onResume() {
    super.onResume();
    mSensorMgr.registerListener(this
        ,mSensorMgr.getDefaultSensor(Sensor.TYPE_ACCELEROMETER)
        ,SensorManager.SENSOR_DELAY_NORMAL);
  }
 
  @Override
  public void onSensorChanged(SensorEvent event) {
    if (event.sensor.getType() == Sensor.TYPE_ACCELEROMETER){//加速度变更事件
      //value[0]:X轴,value[1]:Y轴，values[2]:Z轴
      float[] values = event.values;
      if ((Math.abs(values[0])>15) || Math.abs(values[1])>15 || Math.abs(values[2])>15){
        tv_sensor.setText("恭喜您摇一摇了"+System.currentTimeMillis());
        //系统检测摇一摇事件后，震动手机提示用户
        mVibrator.vibrate(500);
      }
    }
  }
 
  //当传感器精度改变时回调该方法，一般无需处理
  @Override
  public void onAccuracyChanged(Sensor sensor, int accuracy) {
 
  }
}