有关使用图形的高级建议（带有图标，平移和缩放支持的地图）

Question

I'm new to Android and Java. I want to be able to use an image as a background, let's pretend it's a map. Then I want to overlay icons (other graphics) on top of the map at specific coordinates and I want to know when the user clicks on these icons, so I can render text next to them. I also want pan & zoom support.

Is there a control that can handle all this automatically or do I need to be working with a canvas and implementing all this stuff msyelf.

Answer 1

It depends on how big your map is. Assuming that your map is not too big you could just use a canvas. All you would do just blit your map to the background, then draw your icons over it. If your map is a bit larger, you may have to chop it up into chunks, then do some range searching to get only the chunks and icons which are visible. If it is really big, then maybe you should look some of the standard map drawing APIs out there.