https://github.com/misterbooo/kvo-

KVO实现原理
https://github.com/misterbooo/kvo-

Last synced: 8 months ago
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KVO实现原理

• Host: GitHub
• URL: https://github.com/misterbooo/kvo-
• Owner: MisterBooo
• Created: 2017-12-18T07:02:57.000Z (almost 8 years ago)
• Default Branch: master
• Last Pushed: 2017-12-19T03:38:24.000Z (almost 8 years ago)
• Last Synced: 2025-01-11T13:47:56.579Z (9 months ago)
• Language: Objective-C
• Size: 35.2 KB
• Stars: 0
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# KVO-

KVO实现原理

```

- (void)yy_addObserver:(NSObject *)observer forKeyPath:(NSString *)keyPath options:(NSKeyValueObservingOptions)options context:(nullable void *)context{

    

    NSString *oldName = NSStringFromClass([self class]);

    NSString *newName = [@"YYKVO" stringByAppendingString:oldName];

    

    Class MyClass = objc_allocateClassPair([self class], newName.UTF8String, 0);

    class_addMethod(MyClass, @selector(setName:), (IMP)test, "v@:@");

    

    objc_registerClassPair(MyClass);

    

    object_setClass(self, MyClass);

}

void test(){

    NSLog(@"test");

}

```