Android 百度 Map -----定位功能（工具类）
package com.liu.util;

import android.app.Application;
import android.util.Log;
import android.widget.Toast;

import com.baidu.mapapi.BMapManager;
import com.baidu.mapapi.MKEvent;
import com.baidu.mapapi.MKGeneralListener;

public final class MapApplication extends Application {

private static MapApplication instance;
BMapManager mBMapMan = null;
String mStrKey = "873544E597B06B687F74082479C1E4A78F7B286C";

public BMapManager getMapManager() {
return mBMapMan;
}

// 在初始化地图Activity时，注册一般事件监听，并实现MKGeneralListener的接口处理相应事件
public static class MyGeneralListener implements MKGeneralListener {
// 返回网络错误，通过错误代码判断原因，MKEvent中常量值。
public void onGetNetworkState(int arg0) {
Log.d("MyGeneralListener", "onGetNetworkState error is " + arg0);
Toast.makeText(MapApplication.getInstance(), "GetNetworkState",
Toast.LENGTH_LONG).show();
}

// 返回授权验证错误，通过错误代码判断原因，MKEvent中常量值。
public void onGetPermissionState(int iError) {
Log.d("MyGeneralListener", "onGetPermissionState error is " + iError);
if (iError == MKEvent.ERROR_PERMISSION_DENIED) {
Toast.makeText(MapApplication.getInstance(),
"permissionDenied", Toast.LENGTH_LONG).show();
}
}

}

@Override
public void onTerminate() {
// TODO Auto-generated method stub
if (mBMapMan != null) {
mBMapMan.destroy();
mBMapMan = null;
}
super.onTerminate();
}

@Override
public void onCreate() {
super.onCreate();
instance = this;
mBMapMan = new BMapManager(this);
mBMapMan.init(this.mStrKey, new MyGeneralListener());
}

public static MapApplication getInstance() {
return instance;
}

}