Cocoadelica Cocoadelica - 22 hours ago 4
iOS Question

Convert a UIImage into NSData BUT stay as a GIF file

I have a UIImage which is a GIF file.

I need to make it make it into an NSData object.
But it needs to stay a GIF so I can't use UIImageJPEGRepresentation.

Any ideas?

Answer

I faced the same issue you mention and here is the code i used to save the animated gif to Photos without losing animation:

ALAssetsLibrary *library = [[ALAssetsLibrary alloc] init];

NSData *data = [NSData dataWithContentsOfURL:[self getCurrentGIFURL]];

[library writeImageDataToSavedPhotosAlbum:data metadata:nil completionBlock:^(NSURL *assetURL, NSError *error) {}

Basically, if you save the gif from URL or from file directly as an NSData object instead of making it a UIImage, it will keep the animation.

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