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iOS Build a Photo Browser iPhone App Gestures Refactoring Networking Code

thomas krueger
thomas krueger
3,465 Points
Posted by thomas krueger
thomas krueger
3,465 Points

Photo Bombers - Parse Issue UIImage

PhotoController.h

@interface PhotoController : NSObject

  • (void)imageForPhoto:(NSDictionary *)photo size:(NSString *)size completion:(void(^)(UIImage *image))completion;

@end

Generates error - Parse Issue Unknown type name 'UIImage'

which then triggers alert in implementation file - semantic issue, conflicting parameter types in implementation of imageForPhoto:size:completion:':'void(^strong)(int *)' vs 'void(^strong)(UIImage *__strong)'

3 Answers

thomas krueger
thomas krueger
3,465 Points
thomas krueger
thomas krueger
3,465 Points

OK - project did not have a PrefixHeader.pch, so UIKit was not automatically imported into Photocontroller, leading to UIImage not being recognized.

Trevor Duersch
Trevor Duersch
9,964 Points
Trevor Duersch
Trevor Duersch
9,964 Points

I get an error that says "Unknown type name 'UIImage'".

I'm using XCode 6.3.2

I tried importing the UIKit library and I'm still getting the error in the header file.

Alberto Huerdo
Alberto Huerdo
2,650 Points
Alberto Huerdo
Alberto Huerdo
2,650 Points

@Trevor, just add 

#import <UIKit/UIKit.h>

below

#import <Foundation/Foundation.h>
Trevor Duersch
Trevor Duersch
9,964 Points
Trevor Duersch
Trevor Duersch
9,964 Points

Thanks Alberto! That worked like a charm and I was able to finish the app! :)