MapView 显示在灰色瓷砖地图中未显示在 android google api 2.3.3 中

您好，我正在开发一个地图视图，我尝试遵循以下方式 我通过单击按钮创建了一个“意图”]。添加权限和库 。我创建了一个覆盖项目。 .我的模拟器的目标是GoogleApi 2.3.3 .我的MapView密钥已获取并分配到mapview.xml中

我看到底部带有谷歌徽标的地图和地图视图控制器：这是我的代码

地图视图.xml

<?xml version="1.0" encoding="utf-8"?>
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >
    <view android:id="@+id/mv"
    class="com.google.android.maps.MapView"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:layout_weight="1" 
    android:clickable="true"
    android:apiKey="046S_m5BQ43JIRtKiXQfldWwo2ddlU6dL6ca9SQ"
    />
    </LinearLayout>

MapViewActivity.java

    public class MapviewActivity extends MapActivity
   { private static double lat = 35.952967;   // Temporary test values for lat/long
    private static double lon = -83.929158 ;
    private int latE6;
   private int lonE6;
  private MapController mapControl;
private GeoPoint gp;
private MapView mapView; 
private LocationManager locationManager;
private MyOverlays itemizedoverlay;
private MyLocationOverlay myLocationOverlay;


    @Override
    public void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        //requestWindowFeature(Window.FEATURE_NO_TITLE);
        setContentView(R.layout.mapview);

        mapView = (MapView) findViewById(R.id.mv);
        mapView.setBuiltInZoomControls(true);
        mapView.setSatellite(true);
        mapControl = mapView.getController();
        mapControl.setZoom(12); // Zoon 1 is world view
        locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
        locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0,
                0, new GeoUpdateHandler());

        myLocationOverlay = new MyLocationOverlay(this, mapView);
        mapView.getOverlays().add(myLocationOverlay);

        myLocationOverlay.runOnFirstFix(new Runnable() {
            public void run() {
                mapView.getController().animateTo(
                        myLocationOverlay.getMyLocation());
            }
        });

        Drawable drawable = this.getResources().getDrawable(R.drawable.point);
        itemizedoverlay = new MyOverlays(this, drawable);
        createMarker();
    }



    public class GeoUpdateHandler implements LocationListener {

        @Override
        public void onLocationChanged(Location location) {
            int lat = (int) (location.getLatitude() * 1E6);
            int lng = (int) (location.getLongitude() * 1E6);
            GeoPoint point = new GeoPoint(lat, lng);
            createMarker();
            mapControl.animateTo(point); // mapController.setCenter(point);

        }

        @Override
        public void onProviderDisabled(String provider) {
        }

        @Override
        public void onProviderEnabled(String provider) {
        }

        @Override
        public void onStatusChanged(String provider, int status, Bundle extras) {
        }
    }

    private void createMarker() {
        GeoPoint p = mapView.getMapCenter();
        OverlayItem overlayitem = new OverlayItem(p, "", "");
        itemizedoverlay.addOverlay(overlayitem);
        if (itemizedoverlay.size() > 0) {
            mapView.getOverlays().add(itemizedoverlay);
        }
    }

    @Override
    protected void onResume() {
        super.onResume();
        myLocationOverlay.enableMyLocation();
        myLocationOverlay.enableCompass();
    }

    @Override
    protected void onPause() {
        super.onResume();
        myLocationOverlay.disableMyLocation();
        myLocationOverlay.disableCompass();
    }




    // to set the satellite and traffic view
    public boolean onKeyDown(int keyCode, KeyEvent e){
    if(keyCode == KeyEvent.KEYCODE_S){
        mapView.setSatellite(mapView.isSatellite());
        return true;
    } else if(keyCode == KeyEvent.KEYCODE_T){
        mapView.setTraffic(mapView.isTraffic());
        mapControl.animateTo(gp);  // To ensure change displays immediately
    }
    return(super.onKeyDown(keyCode, e));
}     
// Required method since class extends MapActivity
protected boolean isRouteDisplayed() {
    return true;  // display a route
}

这是我的 MyOverlays.java

 public class MyOverlays extends ItemizedOverlay<OverlayItem> {

        private static int maxNum = 5;
        private OverlayItem overlays[] = new OverlayItem[maxNum];
        private int index = 0;
        private boolean full = false;
        private Context context;
        private OverlayItem previousoverlay;

        public MyOverlays(Context context, Drawable defaultMarker) {
            super(boundCenterBottom(defaultMarker));
            this.context = context;
        }

        @Override
        protected OverlayItem createItem(int i) {
            return overlays[i];
        }

        @Override
        public int size() {
            if (full) {
                return overlays.length;
            } else {
                return index;
            }

        }

        public void addOverlay(OverlayItem overlay) {
            if (previousoverlay != null) {
                if (index < maxNum) {
                    overlays[index] = previousoverlay;
                } else {
                    index = 0;
                    full = true;
                    overlays[index] = previousoverlay;
                }
                index++;
                populate();
            }
            this.previousoverlay = overlay;
        }

        protected boolean onTap(int index) {
            OverlayItem overlayItem = overlays[index];
            Builder builder = new AlertDialog.Builder(context);
            builder.setMessage("This will end the activity");
            builder.setCancelable(true);
            builder.setPositiveButton("I agree", new OkOnClickListener());
            builder.setNegativeButton("No, no", new CancelOnClickListener());
            AlertDialog dialog = builder.create();
            dialog.show();
            return true;
        };

        private final class CancelOnClickListener implements
                DialogInterface.OnClickListener {
            public void onClick(DialogInterface dialog, int which) {
                Toast.makeText(context, "You clicked yes", Toast.LENGTH_LONG)
                        .show();
            }
        }

        private final class OkOnClickListener implements
                DialogInterface.OnClickListener {
            public void onClick(DialogInterface dialog, int which) {
                Toast.makeText(context, "You clicked no", Toast.LENGTH_LONG).show();
            }
        }
    }

我的 Android.manifest

<uses-sdk android:minSdkVersion="10" />
    <uses-permission android:name="android.permission.INTERNET" />
    <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_MOCK_LOCATION"/>

     <application
        android:icon="@drawable/drive_eat_icon"
        android:label="@string/app_name" android:allowClearUserData="true"        android:debuggable="true">
        <activity
            android:name=".MainScreen"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity android:name=".DriveatmapActivity"></activity>
        <activity android:name=".MapviewActivity"></activity>
        <activity android:name=".FoodjointListActivity"></activity>
        <activity android:name=".SubmitFormActivity"></activity>    
        <activity android:name=".MyOverlays"/>
            <uses-library android:required="true" android:name="com.google.android.maps"></uses-library>
</application>

请建议该怎么做。如果您需要任何代码，请告诉我。 我看到谷歌地图只有灰色瓷砖。

//而不是你的观点

//用这个

<com.google.android.maps.MapView
      xmlns:android="http://schemas.android.com/apk/res/android"
      android:id="@+id/map_view"
      android:layout_width="fill_parent"
      android:layout_height="fill_parent"
      android:clickable="true"
      android:enabled="true"
      android:apiKey="046S_m5BQ43JIRtKiXQfldWwo2ddlU6dL6ca9SQ" />