performSelector的总结

线程无关方法123- (id)performSelector:(SEL)aSelector; - (id)performSelector:(SEL)aSelector withObject:(id)object; - (id)performSelector:(SEL)aSelector withObject:(id)object1 withObject:(id)object2; 这三个方法,均
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mac/ios开发小知识

in mac

mac开发中动画的使用12345[NSAnimationContext runAnimationGroup:^(NSAnimationContext *context) {//your code} completionHandler:^{}]; 与ios中的UIView动画类似还有第二种用法 123456[NSAnimationContext begin
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