android调用地图在2.4版本以后不再在init.mBMapMan.init（String apikey ， new MyGeneralListener()）；中给定apikey，变为init.mBMapMan.init（String apikey ， new MyGeneralListener()）；然后在manifest文件中application内添加<meta-data
android:name="com.baidu.lbsapi.API_KEY"
android:value="a7GS4tG6hRVAvmzXA4u5x5xn" />value的值是apikey，
<application android:allowBackup="true" android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" > <meta-data android:name="com.baidu.lbsapi.API_KEY" android:value="a7GS4tG6hRVAvmzXA4u5x5xn" /> <activity android:name="com.example.map.MainActivity" android:label="@string/app_name" android:screenOrientation="sensor" android:configChanges="orientation|keyboardHidden" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application>