android-我的百度地图研究 - 随心

BMapManager mapManager = new BMapManager(getApplication());
//mStrKey为百度应用key
mapManager.init(mStrKey, null);
// 如果使用地图SDK，需要初始化地图Activity
super.initMapActivity(mapManager);
//开启百度地图API
mapManager.start();
//mapView为百度地图控件MapView
mapView.setBuiltInZoomControls(false);
mapView.setClickable(true);
mapView.setEnabled(true);
// 得到MapController实例,该实例可以对百度地图进行相关功能的设置，如设置百度地图的放大级别、定位等
mapController = mapView.getController();
//设置显示百度地图的缩放级别
mapController.setZoom(15);// 最大18级,(15)

// 添加定位图层  
MyLocationOverlay myLocationOverlay = new MyLocationOverlay(this, mapView);  
// 注册GPS位置更新的事件,让地图能实时显示当前位置  
myLocationOverlay.enableMyLocation();  
// 开启磁场感应传感器  
myLocationOverlay.enableCompass();  
mapView.getOverlays().add(myLocationOverlay); 

MKLocationManager locationManager = mapManager.getLocationManager();
locationManager.requestLocationUpdates(new LocationListener() {
	@Override
	public void onLocationChanged(Location location) {
		// TODO Auto-generated method stub
	     if (location != null) {  
		updateMyLoading(location.getLatitude(), location.getLongitude());
	     }
	}
});

private void updateMyLoading(double latitude, double longitude){
	List o = mapView.getOverlays();
	final GeoPoint pt = new GeoPoint((int) (location.getLatitude() * 1e6), (int) (location.getLongitude() * 1e6));  
	if (pt != null) {
		o.remove(myOverItemT);
		myOverItemT = getOverItemT(myLocation, pt);
		o.add(myOverItemT);
		mapView.invalidate();
	}
}
public OverItemT getOverItemT(Drawable scenicIcon, GeoPoint geo){
        //OverItemT该类我自个定义的，继承ItemizedOverlay，以来显示我的位置的点
	OverItemT overLay = new OverItemT(scenicIcon, MapSearchActivity.this, geo, view, mapView);
	return overLay;
}