前言

• 需求介绍：很多时候我们不希望按钮多次连按，频繁触发，如果去写Enabled略显麻烦，这里提供一种控制按钮点击间隔时间的方法，我已封装方便使用

API

/* ******************这两个属性互斥********************/
/// 接受点击事件的时间间隔
@property (nonatomic, assign) NSTimeInterval kj_AcceptEventTime;
/// 接受点击事件执行处理之后的时间间隔
@property (nonatomic, assign) NSTimeInterval kj_AcceptDealTime;
/* ******************这两个属性互斥********************/

Runtime方法交换

内部以Category的方式实现，常规的基本都是放在load，这里我选择以委托的方式来处理，也方便选择是否交换，只需要再最初的地方调用即可

@protocol KJButtonTimeExchangeMethodProtocol <NSObject>
@required
/// 是否开启时间间隔的方法交换
+ (void)kj_openTimeExchangeMethod;
@end

实现

其实就是交换点击方法sendAction:to:forEvent:，在kj_sendAction:to:forEvent:当中判断时间间隔

#pragma mark - 时间相关方法交换
/// 是否开启时间间隔的方法交换
+ (void)kj_openTimeExchangeMethod{
    SEL originalSelector = @selector(sendAction:to:forEvent:);
    SEL swizzledSelector = @selector(kj_sendAction:to:forEvent:);
    Class clazz = [self class];
    Method originalMethod = class_getInstanceMethod(clazz, originalSelector);
    Method swizzledMethod = class_getInstanceMethod(clazz, swizzledSelector);
    BOOL boo = class_addMethod(clazz, originalSelector, method_getImplementation(swizzledMethod), method_getTypeEncoding(swizzledMethod));
    if (boo) {
        class_replaceMethod(clazz, swizzledSelector, method_getImplementation(originalMethod), method_getTypeEncoding(originalMethod));
    }else {
        method_exchangeImplementations(originalMethod, swizzledMethod);
    }
}
- (NSTimeInterval)kj_AcceptEventTime{
    return [objc_getAssociatedObject(self, @selector(kj_AcceptEventTime)) doubleValue];
}
- (void)setKj_AcceptEventTime:(NSTimeInterval)kj_AcceptEventTime{
    objc_setAssociatedObject(self, @selector(kj_AcceptEventTime), @(kj_AcceptEventTime), OBJC_ASSOCIATION_RETAIN_NONATOMIC);
}
- (NSTimeInterval)kj_AcceptDealTime{
    return [objc_getAssociatedObject(self, @selector(kj_AcceptDealTime)) doubleValue];
}
- (void)setKj_AcceptDealTime:(NSTimeInterval)kj_AcceptDealTime{
    objc_setAssociatedObject(self, @selector(kj_AcceptDealTime), @(kj_AcceptDealTime), OBJC_ASSOCIATION_RETAIN_NONATOMIC);
}
/// 上一次时间
- (NSTimeInterval)kLastTime{
    return [objc_getAssociatedObject(self, @selector(kLastTime)) doubleValue];
}
- (void)setKLastTime:(NSTimeInterval)kLastTime{
    objc_setAssociatedObject(self, @selector(kLastTime), @(kLastTime), OBJC_ASSOCIATION_RETAIN_NONATOMIC);
}
/// 交换方法后实现
- (void)kj_sendAction:(SEL)action to:(id)target forEvent:(UIEvent *)event{
    if (self.kj_AcceptEventTime <= 0 && self.kj_AcceptDealTime <= 0) {
        [self kj_sendAction:action to:target forEvent:event];
        return;
    }
    // 时间间隔判断
    NSTimeInterval time = self.kj_AcceptEventTime > 0 ? self.kj_AcceptEventTime : self.kj_AcceptDealTime;
    BOOL boo = (NSDate.date.timeIntervalSince1970 - self.kLastTime >= time);
    // 保存上次点击时间
    if (self.kj_AcceptEventTime > 0) self.kLastTime = NSDate.date.timeIntervalSince1970;
    if (boo) {
        if (self.kj_AcceptDealTime > 0) self.kLastTime = NSDate.date.timeIntervalSince1970;
        [self kj_sendAction:action to:target forEvent:event];
    }
}

备注：本文用到的部分函数方法和Demo，均来自三方库KJEmitterView，如有需要的朋友可自行pod 'KJEmitterView'引入即可

Button处理介绍就到此完毕，后面有相关再补充，写文章不容易，还请点个小星星传送门