When I used Android profiler I noticed that graphics were Taking a lot of memory (169 mb) which was making the app extremely slow , and I though that it was caused by Bitmaps so I deleted all the bitmaps in the app and tried again..
and I noticed that graphics were still taking up 60 - 100 mb of RAM , and I would like to know what can cause Memory Drain other than Bitmaps? (My App uses google Maps if that helps)