使用SensorEventListener改写的Shake类
抄了别人的一段代码，发现使用了SensorListener，在1.5上会有警告，于是改成SensorEventListener了。
摇6下就会触发onShake()事件了。

package com.test.android.shake;import android.content.Context;import android.hardware.Sensor;import android.hardware.SensorEvent;import android.hardware.SensorEventListener;import android.hardware.SensorManager;public class ShakeListener implements SensorEventListener {private static final int FORCE_THRESHOLD = 350;private static final int TIME_THRESHOLD = 100;private static final int SHAKE_TIMEOUT = 500;private static final int SHAKE_DURATION = 1000;private static final int SHAKE_COUNT = 6;private SensorManager mSensorMgr;private float mLastX = -1.0f, mLastY = -1.0f, mLastZ = -1.0f;private long mLastTime;private OnShakeListener mShakeListener;private Context mContext;private int mShakeCount = 0;private long mLastShake;private long mLastForce;public interface OnShakeListener {public void onShake();//public void onShakeHorizontal();//public void onShakeVertical();}public ShakeListener(Context context) {mContext = context;resume();}public void setOnShakeListener(OnShakeListener listener) {mShakeListener = listener;}public void resume() {mSensorMgr = (SensorManager) mContext.getSystemService(Context.SENSOR_SERVICE);if (mSensorMgr == null) {throw new UnsupportedOperationException("Sensors not supported");}boolean supported = mSensorMgr.registerListener(this, mSensorMgr.getDefaultSensor(Sensor.TYPE_ACCELEROMETER),SensorManager.SENSOR_DELAY_UI);if (!supported) {mSensorMgr.unregisterListener(this);throw new UnsupportedOperationException("Accelerometer not supported");}}public void pause() {if (mSensorMgr != null) {mSensorMgr.unregisterListener(this);mSensorMgr = null;}}@Overridepublic void onAccuracyChanged(Sensor sensor, int accuracy) {}@Overridepublic void onSensorChanged(SensorEvent event) {if (event.sensor.getType() != Sensor.TYPE_ACCELEROMETER) {return;}long now = System.currentTimeMillis();if ((now - mLastForce) > SHAKE_TIMEOUT) {mShakeCount = 0;}if ((now - mLastTime) > TIME_THRESHOLD) {long diff = now - mLastTime;float speed = Math.abs(event.values[SensorManager.DATA_X]+ event.values[SensorManager.DATA_Y]+ event.values[SensorManager.DATA_Z] - mLastX - mLastY - mLastZ)/ diff * 10000;if (speed > FORCE_THRESHOLD) {if ((++mShakeCount >= SHAKE_COUNT)&& (now - mLastShake > SHAKE_DURATION)) {mLastShake = now;mShakeCount = 0;if (mShakeListener != null) {mShakeListener.onShake();}}mLastForce = now;}mLastTime = now;mLastX = event.values[SensorManager.DATA_X];mLastY = event.values[SensorManager.DATA_Y];mLastZ = event.values[SensorManager.DATA_Z];}}}

使用的时候

ShakeListener mShaker = new ShakeListener(this);mShaker.setOnShakeListener(new ShakeListener.OnShakeListener() {public void onShake() {// action while shaking}});

需要注意的是，在Activity的onPause和onResume函数里需要调用ShakeListener实例的pause和resume过程，注册和注销事件监听。 1 楼 bestroy 2011-09-08 谢谢了　比原来的方法好