Is decreasing size of .png files have some effect to resulted Bitmap in memory

Question

I\'m writing game with a large amount of PNG pictures. All worked fine. Than I added new activity with WebView and got memory shortage. After that I made some e

Answer 1

Memory usage of a Bitmap object in Android is related to the image resolution, not the original format (jpg, png, etc...) or filesize. It needs about 3 bytes pr pixel (1 byte pr color channel).

Anyway, if you are using BitmapFactory to decode a image, a smaller source-file requires less memory when decoding the inputstream.

You can test this yourself by using the Dalvik debugger (ddms). Goto the Sysinfo tab an select Memory usage from the dropdown. You will see how much memory your app i using.