Button 连续点击事件

#import <UIKit/UIKit.h>
#define defaultInterval .5  //默认时间间隔
@interface UIButton (touch)
/**设置点击时间间隔*/
@property (nonatomic, assign) NSTimeInterval timeInterval;
@end

#import "UIButton+touch.h"
#import<objc/runtime.h>

@interface UIButton()
/**bool 类型   设置是否执行点UI方法*/
@property (nonatomic, assign) BOOL isIgnoreEvent;
@end
@implementation UIButton (touch)
+ (void)load{
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        SEL selA = @selector(sendAction:to:forEvent:);
        SEL selB = @selector(mySendAction:to:forEvent:);
        Method methodA =   class_getInstanceMethod(self,selA);
        Method methodB = class_getInstanceMethod(self, selB);
       BOOL isAdd = class_addMethod(self, selA, method_getImplementation(methodB), method_getTypeEncoding(methodB));
        if (isAdd) {
            class_replaceMethod(self, selB, method_getImplementation(methodA), method_getTypeEncoding(methodA));
        }else{
            method_exchangeImplementations(methodA, methodB);
        }
    });
}
- (NSTimeInterval)timeInterval
{
    return [objc_getAssociatedObject(self, _cmd) doubleValue];
}
- (void)setTimeInterval:(NSTimeInterval)timeInterval
{
    objc_setAssociatedObject(self, @selector(timeInterval), @(timeInterval), OBJC_ASSOCIATION_RETAIN_NONATOMIC);
    
}
- (void)mySendAction:(SEL)action to:(id)target forEvent:(UIEvent *)event
{
    if ([NSStringFromClass(self.class) isEqualToString:@"UIButton"]) {
        if (self.isIgnoreEvent == 0) {
            self.timeInterval = defaultInterval;
        };
        if (self.isIgnoreEvent) return;
        if (self.timeInterval > 0)
        {
            self.isIgnoreEvent = YES;
            [self performSelector:@selector(setIsIgnoreEvent:) withObject:@(NO) afterDelay:self.timeInterval];
        }
        
    }
    [self mySendAction:action to:target forEvent:event];
    
}
- (void)setIsIgnoreEvent:(BOOL)isIgnoreEvent{
    objc_setAssociatedObject(self, @selector(isIgnoreEvent), @(isIgnoreEvent), OBJC_ASSOCIATION_RETAIN_NONATOMIC);
}
- (BOOL)isIgnoreEvent{
    return [objc_getAssociatedObject(self, _cmd) boolValue];
}
@end

UIButton+touch.m