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第28月第5天 uibutton交換方法

1.

//交換系統的方法
 

1 @implementation UIControl (MYButton)
2 + (void)load
3 {
4     Method a = class_getInstanceMethod(self, @selector(sendAction:to:forEvent:));
5     Method b = class_getInstanceMethod(self, @selector(__my_sendAction:to:forEvent:));
6     method_exchangeImplementations(a, b);
7 } 8 @end //定義自己的點選事件 1 - (void)__my_sendAction:(SEL)action to:(id)target forEvent:(UIEvent *)event 2 { 3 if (self.my_ignoreEvent) return; 4 if (self.my_acceptEventInterval > 0) 5 { 6 self.my_ignoreEvent = YES; 7 [self performSelector:@selector(setMy_ignoreEvent:) withObject:@(NO) afterDelay:self.my_acceptEventInterval];
8 } 9 [self __my_sendAction:action to:target forEvent:event]; 10 }

 

 

https://www.cnblogs.com/ruihaha/p/5886304.html