Android repetitive decode Bitmap from file

Question

To simulate an animation I decode a sequence of frame next to another and update it on a Bitmap at a fixed rate. The problem is everytime the BitmapFactory.decodeFile function get call it allocate new File and FileInputStream objects, this leads to the GC being called very frequently.

So is there a way to effectively decode file in this scenario for Android. Note that caching Bitmap is useless here 'cause the frames loop continuously one after another.

As long as you use files you have to create a new inputstream for every file. You cannot blame bitmap factory for that. — greenapps
– greenapps, Commented Oct 21, 2016 at 10:05
So there's no way to reuse the InputStream I guest? Or can you suggest an efficient way to decode bitmap from file repetitively? — ttson153
– ttson153, Commented Oct 21, 2016 at 10:38

Community · Accepted Answer · 2017-05-23 12:33:24Z

0

You'd better convert the bunch of image files into AGIF format and play it.

Check this post. https://stackoverflow.com/a/20277649/4518710

edited May 23, 2017 at 12:33

CommunityBot

11 silver badge

answered Oct 21, 2016 at 10:10

Suhyeon Lee

5695 silver badges18 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

ttson153 Over a year ago

Hello! GIF doesn't work for me because I need to draw these Bitmap with OpenGL. What I'm after here is to create animated stickers and overlay them on camera feed.

Collectives™ on Stack Overflow

Android repetitive decode Bitmap from file

1 Answer 1

1 Comment

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Linked

Related