Android 百度 Map -----定位功能（工具類）

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;
    }
 
    // 在初始化地圖Activity時，注冊一般事件監聽，並實現MKGeneralListener的接口處理相應事件
    public static class MyGeneralListener implements MKGeneralListener {
        // 返回網絡錯誤，通過錯誤代碼判斷原因，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();
        }
 
        // 返回授權驗證錯誤，通過錯誤代碼判斷原因，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;
    }
 
}