Android实现摇一摇功能

 package com.xs.test;  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;  /**  * 安卓晃动手机监听--“摇一摇”  *  * @author 单红宇  *  */ public class TestSensorActivity extends Activity {    private SensorManager sensorManager;   private Vibrator vibrator;    private static final String TAG = "TestSensorActivity";   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 medumValue = 19;// 三星 i9250怎么晃都不会超过20，没办法，只设置19了       if (Math.abs(x) > medumValue || Math.abs(y) > medumValue || Math.abs(z) > medumValue) {         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;       }     }    }; } 

package com.example.url;import java.io.IOException;import java.net.URL;import com.hahashijie.imageload.ImageLoader;import android.annotation.SuppressLint;import android.app.Activity;import android.graphics.Bitmap;import android.graphics.BitmapFactory;import android.graphics.drawable.Drawable;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.ImageView;@SuppressLint("HandlerLeak")public class MainActivity extends Activity {private ImageView image;private SensorManager sensorManager;private Sensor sensor;private Vibrator vibrator;private static final int UPTATE_INTERVAL_TIME = 50;private static final int SPEED_SHRESHOLD = 30;//这个值调节灵敏度private long lastUpdateTime;private float lastX;private float lastY;private float lastZ;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);sensorManager = (SensorManager) getSystemService(SENSOR_SERVICE);vibrator = (Vibrator) getSystemService(VIBRATOR_SERVICE);image = (ImageView) findViewById(R.id.image);}@Overrideprotected void onResume() {// TODO Auto-generated method stubsuper.onResume();if (sensorManager != null) {      sensor = sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);    }    if (sensor != null) {    sensorManager.registerListener(sensorEventListener,    sensor,SensorManager.SENSOR_DELAY_GAME);//这里选择感应频率    }}/*** 重力感应监听*/private SensorEventListener sensorEventListener = new SensorEventListener() {@Overridepublic void onSensorChanged(SensorEvent event) {long currentUpdateTime = System.currentTimeMillis();long timeInterval = currentUpdateTime - lastUpdateTime;if (timeInterval < UPTATE_INTERVAL_TIME) {return;}lastUpdateTime = currentUpdateTime;// 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float deltaX = x - lastX;float deltaY = y - lastY;float deltaZ = z - lastZ;lastX = x;lastY = y;lastZ = z;double speed = (Math.sqrt(deltaX * deltaX + deltaY * deltaY+ deltaZ * deltaZ) / timeInterval) * 100;if (speed >= SPEED_SHRESHOLD) {vibrator.vibrate(300);image.setImageResource(R.drawable.running01);}}@Overridepublic void onAccuracyChanged(Sensor sensor, int accuracy) {}};}