Memory Warning UIImagepickerController IOS 7

Question

Could anybody help me with this issue I\'m a bit new to objective c and iOS. I\'ve been working on it but I can\'t figure out how to fix the problem, My app is really simpl

Answer 1

You're on the right track with your fixRotation method. However, you should also resize the image. Otherwise, the image will be huge, ~30 MB (depending on device).

Checkout this blog post on how to resize images correctly. Specifically, the UIImage category files you want are these:

UIImage+Resize.h

UIImage+Resize.m

It's also a good idea to do this on a background thread. Something like this

- (void)imagePickerController:(UIImagePickerController *)imagePicker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
    // Dismiss the image picker first to free its memory
    [self dismissViewControllerAnimated:YES completion:nil];

    UIImage *originalImage = info[UIImagePickerControllerOriginalImage];

    if (!originalImage)
        return;

    // Optionally set a placeholder image here while resizing happens in background

    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{

        // Set desired maximum height and calculate width
        CGFloat height = 640.0f;  // or whatever you need
        CGFloat width = (height / originalImage.size.height) * originalImage.size.width;

        // Resize the image
        UIImage * image = [originalImage resizedImage:CGSizeMake(width, height) interpolationQuality:kCGInterpolationDefault];

        // Optionally save the image here...

        dispatch_async(dispatch_get_main_queue(), ^{
            // ... Set / use the image here...
        });           
    });
}