package cn.teachcourse.utils;
import android.app.Activity;
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.location.Location;
import android.location.LocationManager;
import android.os.IBinder;
import android.provider.Settings;
import android.widget.Toast;
/*
@author postmaster@teachcourse.cn
@date 创建于：2016-1-22
*/
public class LocationService extends Service {
private LocationTool mGPSTool = null;
private boolean threadDisable = false;
private final static String TAG = LocationService.class.getSimpleName();
@Override
public void onCreate() {
// TODO Auto-generated method stub
super.onCreate();
mGPSTool = new LocationTool(this);
startThread();
}
private void startThread() {
new Thread(new Runnable() {
@Override
public void run() {
while (!threadDisable) {
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
if (mGPSTool != null) { // 当结束服务时gps为空
// 获取经纬度
Location location = mGPSTool.getLocation();
// 发送广播
Intent intent = new Intent();
intent.putExtra("lat",
location == null ? "" : location.getLatitude()
+ "");
intent.putExtra("lon",
location == null ? "" : location.getLongitude()
+ "");
intent.setAction("cn.teachcourse.utils.GPSService");
sendBroadcast(intent);
}
}
}
}).start();
}
@Override
public void onDestroy() {
super.onDestroy();
threadDisable = true;
if (mGPSTool != null) {
mGPSTool.closeLocation();
mGPSTool = null;
}
}
@Override
public IBinder onBind(Intent intent) {
return null;
}
}
MainActivity启动服务、注册广播、显示位置信息
在MainActivity需要做的事情有：第一启动LocationService服务，调用startService()方法；第二注册广播接收器（BroadcastReceiver），创建了一个内部类MyBroadcastReceiver，继承BroadcastReceiver，重写onReceive方法；第三获取经纬度数据，更新UI界面，显示当前位置信息，具体代码如下：
//启动服务
startService(new Intent(this, LocationService.class));
//注册广播
private class MyReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
Bundle bundle = intent.getExtras();
String lon = bundle.getString("lon");
String lat = bundle.getString("lat");
if (!TextUtils.isEmpty(lon) && !TextUtils.isEmpty(lat)) {
mLatitude = lat;
mLongitude = lon;
isObtainLoc = true;
new Thread(new Runnable() {
@Override
public void run() {
Message msg = new Message();
msg.what = REFRESH_UI;// 发送消息，通知刷新界面
mHandler.sendMessage(msg);
}
}).start();
}
}
}
//更新UI界面
private Handler mHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
// TODO Auto-generated method stub
super.handleMessage(msg);
switch (msg.what) {
case REFRESH_UI:
reFreshUI();
break;
default:
break;
}
}
};
private void reFreshUI() {
if (isObtainLoc) {
mTextView.setText("目前经纬度n经度：" + mLongitude + "n纬度：" + mLatitude);
mDialog.dismiss();
}
}
