Get Rid of NSCachedURLResponse's Encoding Methods Warning

Before xcode 4.3 we can use this to encode and decode NSCachedURLResponse:

 

@ Implementation NSCachedURLResponse (NSCoder)

-(Void) encodeWithCoder :( NSCoder *) coder {

// TODO:

}

 

-(Id) initWithCoder :( NSCoder *) coder {

// TODO:

}

@ End

 

But in xcode 4.3, it will cause a warng.

There are two methods to avoid the warning.

One:

Ref, https://github.com/rs/SDURLCache/pull/29

Two:

 

@ Interface NSCachedURLResponse (ABC)

+ (Void) swapMethods;

-(Id) myInitWithCoder :( NSCoder *) ACO;

-(Void) myEncodeWithCoder :( NSCoder *) ACO;

@ End

 

 

# Include <objc/objc. h>

# Import <objc/runtime. h>

# Import <objc/message. h>

 

Void SwapMethods (Class cls, SEL originalSel, SEL newSel ){

Method originalMethod = class_getInstanceMethod (cls, originalSel );

Method newMethod = class_getInstanceMethod (cls, newSel );

Method_exchangeImplementations (originalMethod, newMethod );

}

 

 

 

@ Implementation NSCachedURLResponse (ABC)

+ (Void) swapMethods {

Class tempClass = [NSCachedURLResponse class];

SwapMethods (tempClass, @ selector (initWithCoder :), @ selector (myInitWithCoder :));

SwapMethods (tempClass, @ selector (encodeWithCoder :), @ selector (myEncodeWithCoder :));

}

-(Id) myInitWithCoder :( NSCoder *) ACO {

// TODO:

}

-(Void) myEncodeWithCoder :( NSCoder *) ACO {

// TODO:

}

@ End