Question

I have two view controllers, in one I pick the image from the photo library and assign it to an image property. With this picker:

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)img editingInfo:(NSDictionary *)editInfo

But instead I would like to just get the address/data of the image from the picker in the first controller, push the next view controller and then open the image with that address there. So then I do the following:

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info

When I print info of the photo it looks something like this:

assets-library://asset/asset.JPG?id=52219875-C221-4F60-B9D4-984AAADB6E63&ext=JPG

The problem is that UIImage has methods initWithData or imageWithData but these accept NSData and not NSDictionary.

How can I open an image from a photo library using its data?

Answer 1

This method:

- (void)imagePickerController:(UIImagePickerController *)picker 
        didFinishPickingImage:(UIImage *)img 
                  editingInfo:(NSDictionary *)editInfo

shouldn’t be used, it’s been deprecated since ios3

This method:

  - (void)imagePickerController:(UIImagePickerController *)picker 
  didFinishPickingMediaWithInfo:(NSDictionary *)info

returns a dictionary, as you report.

The image pointer is one of the objects in this dictionary. You obtain it as such:

  UIImage* image = [info objectForKey:UIImagePickerControllerOriginalImage];