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/*
Place following code in your info.plist file.

<key>LSApplicationQueriesSchemes</key>
  <array>
    <string>hostApplicationURLScheme</string>
  </array>
*/

#import <StoreKit/StoreKit.h>

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#import <UIKit/UIKit.h>

@interface CodeGenerator : NSObject
+ (UIImage *)qrCodeForString:(NSString *)string;
+ (UIImage *)barCodeForString:(NSString *)string;
@end

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if (@available(iOS 11.0, *)) {}

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#import <UIKit/UIKit.h>

@class SomeViewController;

@protocol SomeViewControllerDelegate <NSObject>
-(void)delegateMethodName:(SomeViewController *)controller;
@end
  
@interface SomeViewController : UIViewController
@property (nonatomic, weak) id<SomeViewControllerDelegate> delegate;

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Macros from TargetConditionals.h.
iOS 9+ only.

TARGET_OS_WIN32           - Generated code will run under 32-bit Windows
TARGET_OS_UNIX            - Generated code will run under some Unix (not OSX) 
TARGET_OS_MAC             - Generated code will run under Mac OS X variant
   TARGET_OS_OSX          - Generated code will run under OS X devices
   TARGET_OS_IPHONE          - Generated code for firmware, devices, or simulator
      TARGET_OS_IOS             - Generated code will run under iOS 
      TARGET_OS_TV              - Generated code will run under Apple TV OS