百度地图 隐藏logo--隐藏缩放控件--隐藏地图上比例尺

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