Android 摇一摇监听实现

package com.loaderman.androiddemo;

import android.content.Context;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;



public class ShakeUtils implements SensorEventListener {
    public ShakeUtils(Context context) {
        mSensorManager = (SensorManager) context.getSystemService(Context.SENSOR_SERVICE);
    }

    public void setOnShakeListener(OnShakeListener onShakeListener) {
        mOnShakeListener = onShakeListener;
    }

    public void onResume() {
        mSensorManager.registerListener(this,
                mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER),
                SensorManager.SENSOR_DELAY_NORMAL);
    }

    public void onPause() {
        mSensorManager.unregisterListener(this);
    }

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

    }

    @Override
    public void onSensorChanged(SensorEvent event) {
        int sensorType = event.sensor.getType();
        //values[0]:X轴，values[1]：Y轴，values[2]：Z轴
        float[] values = event.values;
        if (sensorType == Sensor.TYPE_ACCELEROMETER) {
            //这里可以调节摇一摇的灵敏度
            if ((Math.abs(values[0]) > SENSOR_VALUE || Math.abs(values[1]) > SENSOR_VALUE || Math.abs(values[2]) > SENSOR_VALUE)) {
                System.out.println("sensor value == " + " " + values[0] + " " + values[1] + " " + values[2]);
                if (null != mOnShakeListener) {
                    mOnShakeListener.onShake();
                }
            }
        }
    }

    public interface OnShakeListener {
        public void onShake();
    }

    private SensorManager mSensorManager = null;
    private OnShakeListener mOnShakeListener = null;
    private static final int SENSOR_VALUE = 14;
}

package com.loaderman.androiddemo;

import android.app.Activity;
import android.os.Bundle;

public class MainActivity extends Activity {

    ShakeUtils mShakeUtils;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mShakeUtils = new ShakeUtils( this );
        mShakeUtils.setOnShakeListener(new ShakeUtils.OnShakeListener() {
            @Override
            public void onShake() {
                System.out.println("摇一摇");
            }
        });
    }

    @Override
    protected void onResume() {
        super.onResume();
        mShakeUtils.onResume();
    }
    @Override
    protected void onPause() {
        super.onPause();
        mShakeUtils.onPause( );
    }
}