/ 隐藏logo
View child = mMapView.getChildAt(1);
if (child != null && (child instanceof ImageView || child instanceof ZoomControls)){
child.setVisibility(View.INVISIBLE);
}
//图比例尺
mMapView.showScaleControl(false);
// 隐藏缩放控件
mMapView.showZoomControls(false);