Android - Best Way To Convert .gif To .png

Im downloading lots of .gif files from a server and when I try to draw on them in a canvas it never works. Ive created the bitmaps from the gifs and have set them to be immutable u

Solution 1:

I figured out my problem. There was a system lock on the newly created file when I was trying to access it to make a png from it. When I moved the call elsewhere to make the png it worked fine.