布局文文件：main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:gravity="center"
android:background="#ffffff">
<TextView
android:id="@+id/myTextView"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="请摇晃手机"
android:textSize="30dp"
android:textColor="#000000"
android:gravity="center"
/>
</LinearLayout>
java文件：ShakeListener.java
package com.example.myShake;
import android.content.Context;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.util.Log;
/**
* 一个检測手机摇晃的监听器
*/
public class ShakeListener implements SensorEventListener {
// 速度阈值，当摇晃速度达到这值后产生作用
private static final int SPEED_SHRESHOLD = 3000;
// 两次检測的时间间隔
private static final int UPTATE_INTERVAL_TIME = 70;
// 传感器管理器
private SensorManager sensorManager;
// 传感器
private Sensor sensor;
// 重力感应监听器
private OnShakeListener onShakeListener;
// 上下文
private Context mContext;
// 手机上一个位置时重力感应坐标
private float lastX;
private float lastY;
private float lastZ;
// 上次检測时间
private long lastUpdateTime;
// 构造器
public ShakeListener(Context c) {
// 获得监听对象
mContext = c;
start();
}
// 開始
public void start() {
// 获得传感器管理器
sensorManager = (SensorManager) mContext
.getSystemService(Context.SENSOR_SERVICE);
if (sensorManager != null) {
// 获得重力传感器
sensor = sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
}
// 注冊
if (sensor != null) {
sensorManager.registerListener(this, sensor,
SensorManager.SENSOR_DELAY_GAME);
}
}
// 停止检測
public void stop() {
sensorManager.unregisterListener(this);
}
// 设置重力感应监听器
public void setOnShakeListener(OnShakeListener listener) {
onShakeListener = listener;
}
// 重力感应器感应获得变化数据
public void onSensorChanged(SensorEvent event) {
// 如今检測时间
long currentUpdateTime = System.currentTimeMillis();
// 两次检測的时间间隔
long timeInterval = currentUpdateTime - lastUpdateTime;
// 推断是否达到了检測时间间隔
if (timeInterval < UPTATE_INTERVAL_TIME)
return;
// 如今的时间变成last时间
lastUpdateTime = currentUpdateTime;
// 获得x,y,z坐标
float x = event.values[0];
float y = event.values[1];
float z = event.values[2];
// 获得x,y,z的变化值
float deltaX = x - lastX;
float deltaY = y - lastY;
float deltaZ = z - lastZ;
// 将如今的坐标变成last坐标
lastX = x;
lastY = y;
lastZ = z;
double speed = Math.sqrt(deltaX * deltaX + deltaY * deltaY + deltaZ
* deltaZ)
/ timeInterval * 10000;
Log.v("thelog", "===========log===================");
// 达到速度阀值。发出提示
if (speed >= SPEED_SHRESHOLD) {
onShakeListener.onShake();
}
}
public void onAccuracyChanged(Sensor sensor, int accuracy) {
}
// 摇晃监听接口
public interface OnShakeListener {
public void onShake();
}
}
java文件：MyActivity.java
package com.example.myShake;
import android.app.Activity;
import android.app.Service;
import android.content.Context;
import android.media.AudioManager;
import android.media.SoundPool;
import android.os.Bundle;
import android.os.Vibrator;
import android.util.Log;
import android.widget.TextView;
public class MyActivity extends Activity {
private AudioManager audioManager;//管理音频的类
private SoundPool soundPool;//声明一个SoundPool
private int music, music2;//。来设置suondID
private ShakeListener mShakeListener=null;
public static long GrouplastUpdateTime;
private TextView MyTextView;
/**
* Called when the activity is first created.
*/
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
MyTextView=(TextView)findViewById(R.id.myTextView);
mShakeListener = new ShakeListener(this);
setListeners();
initState();
}
//加入摇一摇声音
private void initState() {
soundPool = new SoundPool(10, AudioManager.STREAM_SYSTEM, 5);//第一个參数为同一时候播放数据流的最大个数，第二数据流类型，第三为声音质量
music = soundPool.load(this, R.raw.shake_sound_male, 1);
//把你的声音素材放到res/raw里，第2个參数即为资源文件，第3个为音乐的优先级
music2 = soundPool.load(this, R.raw.shake_sound, 1);
}
//加入摇一摇监听
private void setListeners() {
mShakeListener.setOnShakeListener(new ShakeListener.OnShakeListener() {
public void onShake() {
System.out.println("<<<<<<"+"Group");
long currentUpdateTime = System.currentTimeMillis();
long timeInterval = currentUpdateTime - GrouplastUpdateTime;
//设置每三秒可摇一次
if (timeInterval < 3000)
return;
GrouplastUpdateTime = currentUpdateTime;
// 手机震动效果
// Vibrator vVi = (Vibrator) MyActivity.this
// .getSystemService(Service.VIBRATOR_SERVICE);
//此处报错。什么安全异常，小五也不知道为啥 。望高手指点
// vVi.vibrate(400);
//播放音频。能够对左右音量分别设置，能够设置优先级，循环次数以及速率
//速率最高2，最低0.5，正常为1
float volumeNum = (float)getVolume()/7;
int streamID = soundPool.play(music, 1, 1, 0, 0, (float)1.4);
soundPool.setVolume(streamID, volumeNum, volumeNum);
// soundPool.play(music, 1, 1, 0, 0, 1);//播放声音
Thread thread=new Thread(new Runnable() {
@Override
public void run() {
try {
Thread.sleep(2000);
float volumeNum = (float)getVolume()/7;
int streamID = soundPool.play(music2, 1, 1, 0, 0, (float)1.4);
soundPool.setVolume(streamID, volumeNum, volumeNum);//播放声音
} catch (InterruptedException e) {
e.printStackTrace();
}
}
});
thread.start();
MyTextView.setText("Hello World!!!");
}
});
}
//获得当前系统音量 0~7
private int getVolume(){
int volume = -1;
audioManager = (AudioManager)getSystemService(Context.AUDIO_SERVICE);
volume = audioManager.getStreamVolume(AudioManager.STREAM_RING);
Log.i("STREAM_RING", "" + volume);
return volume;
}
}