可以使用 MapKit 在地图上添加叠加层吗？
是否可以在我的应用程序中添加的地图上添加叠加图像？我正在使用 MapKit 来显示某个区域的地图。我想在引脚显示之前在地图顶部添加覆盖图像
，即堆栈应该是地图->图像覆盖->引脚
是否可以不进入视图层次结构- 获取视图的所有子视图，然后在地图顶部添加图像？
谢谢。
Is it possible to add an overlay image on top of a map added in my app? I am using MapKit to show the map of an area. I would like to add an overlay image on top of the map before the pins show up
i.e. the stack should be map->image overlay->pins
Is it possible without going into the hierarchy of views - get all subviews of the view and then add an image just on top of the map?
Thanks.
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我知道您需要一种静态地图的解决方案，但这里有一个“可拖动”地图的解决方案，它也应该可以解决您的问题。
您应该子类
MKOverlayView，并覆盖它（默认为空）：- (void)drawMapRect:(MKMapRect)mapRect ZoomScale:(MKZoomScale)zoomScale inContext:(CGContextRef)context。该方法实际上应该执行
drawRect在视图中执行的操作。您还应该实现另一个“应该”方法，如果覆盖层应该在屏幕上可见（在您的情况下......总是？），则该方法应该返回 TRUE。
在重写方法中，您应该在地图顶部绘制图像（当然根据mapRect和zoomScale），并且中提琴！
更多参考：
http://developer.apple.com/library/ios/#documentation/UserExperience/Conceptual/LocationAwarenessPG/AnnotatingMaps/AnnotatingMaps.html#//apple_ref/doc/uid/TP40009497-CH6-SW15
I know that you need a solution for a static map , but here's one for a "draggable" one , which should also solve your problem.
You should subclass
MKOverlayView, and override its (empty by default):- (void)drawMapRect:(MKMapRect)mapRect zoomScale:(MKZoomScale)zoomScale inContext:(CGContextRef)context.The method should actually do what
drawRectdoes in views.You should also implement another "should" method , that should return TRUE if the overlay should be visible on screen (in your case.. always ?).
In the overriden method , you should draw your image on top of the map (according to the mapRect and zoomScale of course) , and viola!
Some more reference :
http://developer.apple.com/library/ios/#documentation/UserExperience/Conceptual/LocationAwarenessPG/AnnotatingMaps/AnnotatingMaps.html#//apple_ref/doc/uid/TP40009497-CH6-SW15
尝试查看
MKMapView文档中概述的MKOverlayView（请参阅 链接）。此外，可能值得回顾一下“Apple WWDC Session 127 - Customizing Maps with Overlays”。Try taking a look into the
MKOverlayViewoutlined in theMKMapViewdocumentation (see link). In addition, it may be worth reviewing "Apple WWDC Session 127 - Customizing Maps with Overlays".如果您观看“Apple WWDC Session 127 - 使用叠加层自定义地图”会议，其中有一部分是关于光栅图像作为叠加层的。如果您下载 2010 WWDC 示例代码，其中有一个名为“TileMap”的示例，其中包含执行此操作的代码。
If you watch that "Apple WWDC Session 127 - Customizing Maps with Overlays" session there is a part about about raster images as overlays. If you download the 2010 WWDC Sample Code there is an example named "TileMap" which has the code for doing that.