<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="com.android.launcher.permission.READ_SETTINGS" />
<uses-permission android:name="android.permission.WAKE_LOCK"/>
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.GET_TASKS" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.WRITE_SETTINGS" />

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:tools="http://schemas.android.com/tools"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:orientation="vertical"
  tools:context="com.example.baidumap.MainActivity" >
  
  <com.baidu.mapapi.map.MapView 
    android:id="@+id/bmapView" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:clickable="true" />

</LinearLayout>

public class MainActivity extends Activity {
  private MapView mMapView = null;
  private BaiduMap mBaiduMap;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    //在使用SDK各组件之前初始化context信息，传入ApplicationContext 
    //注意该方法要再setContentView方法之前实现 
    SDKInitializer.initialize(getApplicationContext()); 
    setContentView(R.layout.activity_main);
    
    //初始化控件
    initView();
  }

  private void initView() {
    //获取地图控件引用 
    mMapView = (MapView) findViewById(R.id.bmapView);
    
    //获取百度地图
    mBaiduMap = mMapView.getMap();
    
    //普通地图 
    mBaiduMap.setMapType(BaiduMap.MAP_TYPE_NORMAL);
    
    //开启交通图  
    mBaiduMap.setTrafficEnabled(true);  
    
    //卫星地图 
    //mBaiduMap.setMapType(BaiduMap.MAP_TYPE_SATELLITE); 
    
  }
  
  @Override 
  protected void onDestroy() { 
    super.onDestroy(); 
    //在activity执行onDestroy时执行mMapView.onDestroy()，实现地图生命周期管理 
    mMapView.onDestroy(); 
  } 
  @Override 
  protected void onResume() { 
    super.onResume(); 
    //在activity执行onResume时执行mMapView. onResume ()，实现地图生命周期管理 
    mMapView.onResume(); 
    } 
  @Override 
  protected void onPause() { 
    super.onPause(); 
    //在activity执行onPause时执行mMapView. onPause ()，实现地图生命周期管理 
    mMapView.onPause(); 
  }

}