处理 Android 手机的震动事件，android震动,拿着手机使用晃，程序就能

处理 Android 手机的震动事件，android震动,拿着手机使用晃，程序就能

拿着手机使用晃，程序就能收到震动事件

AccelerometerListener.java

package com.gedankentank.android.sensor;import java.util.List;import android.hardware.Sensor;import android.hardware.SensorEvent;import android.hardware.SensorEventListener;import android.hardware.SensorManager;import android.util.Log;public class AccelerometerListener implements SensorEventListener {    private SensorManager sensorManager;    private List<Sensor> sensors;    private Sensor sensor;    private long lastUpdate = -1;    private long currentTime = -1;    private float last_x, last_y, last_z;    private float current_x, current_y, current_z, currenForce;    private static final int FORCE_THRESHOLD = 900;    private final int DATA_X = SensorManager.DATA_X;    private final int DATA_Y = SensorManager.DATA_Y;    private final int DATA_Z = SensorManager.DATA_Z;    public AccelerometerListener(Activity parent) {        SensorManager sensorService = (SensorManager)             parent.getSystemService(Context.SENSOR_SERVICE);        this.sensorManager = sensorManager;        this.subscriber = subscriber;        this.sensors = sensorManager.getSensorList(Sensor.TYPE_ACCELEROMETER);        if (sensors.size() > 0) {            sensor = sensors.get(0);        }    }    public void start () {        if (sensor!=null)  {            sensorManager.registerListener(this, sensor, SensorManager.SENSOR_DELAY_GAME);        }    }    public void stop () {        sensorManager.unregisterListener(this);    }    public void onAccuracyChanged(Sensor s, int valu) {    }    public void onSensorChanged(SensorEvent event) {        if (event.sensor.getType() != Sensor.TYPE_ACCELEROMETER || event.values.length < 3)              return;        currentTime = System.currentTimeMillis();        if ((currentTime - lastUpdate) > 100) {            long diffTime = (currentTime - lastUpdate);            lastUpdate = currentTime;            current_x = event.values[DATA_X];            current_y = event.values[DATA_Y];            current_z = event.values[DATA_Z];            currenForce = Math.abs(current_x+current_y                 +current_z - last_x - last_y - last_z) / diffTime * 10000;            if (currenForce > FORCE_THRESHOLD) {                // Device has been shaken now go on and do something                // you could now inform the parent activity ...            }            last_x = current_x;            last_y = current_y;            last_z = current_z;        }    }}