OpenStreetMap地图显示问题

[lp09160206]

按照网上的教程进行编写，结果只显示网格，是为什么呢，一下是代码：
activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" >
 
    <org.osmdroid.views.MapView
        android:id="@+id/map"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:clickable="true"
        android:enabled="true"
        tilesource="MapquestOSM" />
 
</RelativeLayout>

权限说明：

 <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

MainActivity.class：

public class MainActivity extends Activity {
	MapView mMapView=null;
	MapController mController=null;
	ResourceProxy mResourceProxy=null;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		
		mMapView = (MapView) findViewById(R.id.map);
		mController = mMapView.getController();
		//ResourceProxy init
		mResourceProxy = new DefaultResourceProxyImpl(this);
		mMapView.setTileSource(TileSourceFactory.MAPNIK);
		mMapView.setBuiltInZoomControls(true);
		mMapView.setMultiTouchControls(true);
		//定位当前位置，北京市西长安街复兴路
		GeoPoint center = new GeoPoint(39.901873, 116.326655);
		mController.setCenter(center);
		mController.setZoom(14);  
		
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		// Inflate the menu; this adds items to the action bar if it is present.
		getMenuInflater().inflate(R.menu.main, menu);
		return true;
	}

}

[huahua453182]

该问题解决了吗？同求

[h825503721]

一样的问题，求大神

[jsonyue]

问题解决了吗！qq 1013990075

[distwangbl]

楼主，通过下载omsdroid源码（http://download.csdn.net/detail/sun19890716/8636285），在ADT跑起来，发现有地图，然后我尝试将BD_OSMmaper的src考到自己工程中，再跑起来，发现有地图了

[xiaosongaspnet]

楼主解决了吗？

[朕要睡了]

参照一下OpenStreetMapViewer中checkpermission()函数即可，再次进行WRITE_EXTERNAL_STORAGE许可，具体可以看一下http://blog.csdn.net/u010933982/article/details/51260468