draw is being constantly called in my android map overlay

Question

I\'m trying to draw a route onto my MapView. I\'ve extended Overlay and implemented the draw() method. The route is displayed properly, although while debugging, I added a b

Answer 1

After further review, the Overlay draw() does actually work as described in the documentation. One draw for shadow = true, and one for shadow = false.

The interesting thing is that the specific overlay draw() method responds as advertized for each element drawn in the MapView. For example, in my case, it seems to respond for each the google map, the Google logo drawn on the map, and then the particular overlay I have drawn myself. Obviously twice for each (shadow true|false).

This is probably the intended way to render the maps. I haven't found or spent enough time researching for this information.

Also, in my own case, I have a transparent panel rendered over my map with CheckBox(s) and TextView widgets. The TextView forces the draw() method to run non-stop since the textview is always listening for input and hence triggering the redrawn of the overlay.