Android Sensor Shake(WeChat)

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

package com.buzz.shake;



import android.app.Activity;

import android.hardware.Sensor;

import android.hardware.SensorEvent;

import android.hardware.SensorEventListener;

import android.hardware.SensorManager;

import android.os.Bundle;

import android.os.Handler;

import android.os.Message;

import android.os.Vibrator;

import android.util.Log;

import android.widget.Toast;



/**

 * “摇一摇”

 * @author NickChung

 */

public class SensorActivity extends Activity {



	private SensorManager sensorManager;

	private Vibrator vibrator;



	private static final String TAG = "SensorActivity";

	private static final int SENSOR_SHAKE = 10;



	/** Called when the activity is first created. */

	@Override

	public void onCreate(Bundle savedInstanceState) {

		super.onCreate(savedInstanceState);

		setContentView(R.layout.main);

		sensorManager = (SensorManager) getSystemService(SENSOR_SERVICE);

		vibrator = (Vibrator) getSystemService(VIBRATOR_SERVICE);

	}



	@Override

	protected void onResume() {

		super.onResume();

		if (sensorManager != null) {// 注册监听器

			sensorManager.registerListener(sensorEventListener, sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER), SensorManager.SENSOR_DELAY_NORMAL);

			// 第一个参数是Listener，第二个参数是所得传感器类型，第三个参数值获取传感器信息的频率

		}

	}



	@Override

	protected void onPause() {

		super.onPause();

		if (sensorManager != null) {// 取消监听器

			sensorManager.unregisterListener(sensorEventListener);

		}

	}



	/**

	 * 重力感应监听

	 */

	private SensorEventListener sensorEventListener = new SensorEventListener() {



		@Override

		public void onSensorChanged(SensorEvent event) {

			// 传感器信息改变时执行该方法

			float[] values = event.values;

			float x = values[0]; // x轴方向的重力加速度，向右为正

			float y = values[1]; // y轴方向的重力加速度，向前为正

			float z = values[2]; // z轴方向的重力加速度，向上为正

			Log.i(TAG, "x轴方向的重力加速度" + x +  "；y轴方向的重力加速度" + y +  "；z轴方向的重力加速度" + z);

			// 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 mediumValue = 19;

			if (Math.abs(x) > mediumValue || Math.abs(y) > mediumValue || Math.abs(z) > mediumValue) {

				vibrator.vibrate(200);

				Message msg = new Message();

				msg.what = SENSOR_SHAKE;

				handler.sendMessage(msg);

			}

		}



		@Override

		public void onAccuracyChanged(Sensor sensor, int accuracy) {



		}

	};



	/**

	 * 动作执行

	 */

	Handler handler = new Handler() {



		@Override

		public void handleMessage(Message msg) {

			super.handleMessage(msg);

			switch (msg.what) {

			case SENSOR_SHAKE:

				Toast.makeText(TestSensorActivity.this, "检测到摇晃，执行操作！", Toast.LENGTH_SHORT).show();

				Log.i(TAG, "检测到摇晃，执行操作！");

				break;

			}

		}



	};

}

 Ref:仿微信摇一摇功能，android 重力感应开发

 Ref:Android重力感应开发

 Ref:Android游戏开发之小球重力感应实现（二十五）