Received memory warning on setimage

Question

This problem has completely stumped me. This is for iOS 5.0 with Xcode 4.2

What\'s going on is that in my app I let user select images from their photo album and I s

Answer 1

This situation (memory warnings and application quitting while attempting to load multiple full resolution UIImages into a view) has attempted to burn me a couple times in my iOS programming career.

You need to make a shrinked down copy of your original image before doing the "setImage" call.

For my own code, I use the "UIImage+Resize" category, the details for which can be found here.

Resize your image to something smaller before inserting into your view, then make sure the full resolution image is released (or set to nil if on ARC) and you should have a happier time of things.

Here is how I do it in my own code:

CGSize buttonSize = CGSizeMake(width, height);
// it'd be nice if UIImage took a file URL, huh?
UIImage * newImage = [[UIImage alloc] initWithContentsOfFile: pathToImage];
if(newImage)
{
    // this "resizedimage" image is what you want to pass to setImage
    UIImage * resizedImage = [newImage resizedImage: buttonSize interpolationQuality: kCGInterpolationLow];
}