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public class mapActivity extends MapActivity {
  	private MapView mMapView; 	private MapController mMapController; 	private GeoPoint mGeoPoint; 	/** Called when the activity is first created. */     @Override     public void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);         setContentView(R.layout.maplayout_1);         mMapView = (MapView)findViewById(R.id.mapView_1);         mMapController = mMapView.getController();         mMapView.setTraffic(false);			//traffic mode 		//mMapView.setSatellite(true); 		//satellite mode 		//mMapView.setStreetView(false);	//street mode         //mMapView.displayZoomControls(true);      //老版中用这个,新版中用下面的         mMapView.setBuiltInZoomControls(true);         //String coordinates[] = {"23.15345", "113.343329"};         //String coordinates[]={"1.352566007", "103.78921587"};         String coordinates[] = {"23.141126", "113.34528"};         double lat = Double.parseDouble(coordinates[0]);         double lng = Double.parseDouble(coordinates[1]); 		mGeoPoint = new GeoPoint((int) (lat * 1E6), (int) (lng * 1E6));         mMapController.animateTo(mGeoPoint);         mMapController.setZoom(17);         //---Add a location marker---         MapOverlay mapOverlay = new MapOverlay();         List
   
     listOfOverlays = mMapView.getOverlays();         listOfOverlays.clear();         listOfOverlays.add(mapOverlay);         mMapView.invalidate();     }     class MapOverlay extends Overlay     {
          @Override 		public boolean draw(Canvas canvas, MapView mapView, boolean shadow, 				long when)         {
  			super.draw(canvas, mapView, shadow); 			// ---translate the GeoPoint to screen pixels--- 			Point screenPts = new Point(); 			// 将经纬度转换成实际屏幕坐标 			mapView.getProjection().toPixels(mGeoPoint, screenPts); 			// ---add the marker--- 			Bitmap bmp = BitmapFactory.decodeResource(getResources(), 					R.drawable.set); 			canvas.drawBitmap(bmp, screenPts.x, screenPts.y - 50, null); 			return true;         } 		@Override 		public boolean onTouchEvent(MotionEvent event, MapView mapView) {
  			// 显示经纬度 			if (event.getAction() == 1) {
  				//System.out.println("touch"); 				GeoPoint p = mMapView.getProjection().fromPixels( 						(int) event.getX(), (int) event.getY()); 				Toast.makeText(getBaseContext(), 						p.getLatitudeE6() / 1E6 + "," + p.getLongitudeE6() / 1E6, 						Toast.LENGTH_SHORT).show(); 			} 			return super.onTouchEvent(event, mapView); 		}     } 	@Override 	public boolean onKeyDown(int keyCode, KeyEvent event) {
  		switch (keyCode) {
  		case KeyEvent.KEYCODE_DPAD_UP: 			mMapController.zoomIn(); 			break; 		case KeyEvent.KEYCODE_DPAD_DOWN: 			mMapController.zoomOut(); 			break; 		} 		return super.onKeyDown(keyCode, event); 	} 	@Override 	protected boolean isRouteDisplayed() {
  		// TODO Auto-generated method stub 		return false; 	} 	@Override 	public void onBackPressed() {
  		// TODO Auto-generated method stub 		super.onBackPressed(); 		finish(); 	} }
   

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