Memory issue in using UIImagePNGRepresentation

Question

Hi Guys I found this module to be troublesome. I import more than 100 images from Photolibrary, save them in documents directory with a different name. As expected I had a m

Answer 1

I mailed this issue to Apple and they asked me to introduce sleep cycles between every allocation. Add sleep before allocation.

Answer 2

I solve this issue by sending a 4 channels image (RGBA or RGBX) instead of a 3 channels image (RGB).

You can check if there's any chance to change parameters of your image.

Answer 3

The caching is coming from [UIImage imageNamed:], not UIImagePNGRepresentation(). Do this instead:

NSString *imageName = [NSString stringWithFormat:@"image%d.png", i];
NSString *imagePath = [[NSBundle mainBundle] pathForResource:imageName];
UIImage *image = [UIImage imageWithContentsOfFile:imagePath];

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