iOS 限制按钮多次点击

代码如下：
.h文件

#import <UIKit/UIKit.h>

@interface UIControl (MultiClick)

- (NSTimeInterval)cs_acceptEventInterval;

- (void)setCs_acceptEventInterval:(NSTimeInterval)cs_acceptEventInterval;

- (void)cs_sendAction:(SEL)action to:(id)target forEvent:(UIEvent *)event;

- (BOOL)cs_acceptEventIntervalFlag;

- (void)setCs_acceptEventIntervalFlag:(BOOL)cs_acceptEventIntervalFlag;

@end

.m文件

#import "UIControl+MultiClick.h"
#import <objc/runtime.h>
@import Aspects;
@implementation UIControl (MultiClick)

// 因category不能添加属性，只能通过关联对象的方式。
static const char *UIControl_acceptEventInterval = "UIControl_acceptEventInterval";

- (NSTimeInterval)cs_acceptEventInterval {
    return  [objc_getAssociatedObject(self, UIControl_acceptEventInterval) doubleValue];
}

- (void)setCs_acceptEventInterval:(NSTimeInterval)cs_acceptEventInterval {
    objc_setAssociatedObject(self, UIControl_acceptEventInterval, @(cs_acceptEventInterval), OBJC_ASSOCIATION_RETAIN_NONATOMIC);
}

static const char *UIControl_acceptEventTime = "UIControl_acceptEventTime";

- (NSTimeInterval)cs_acceptEventTime {
    return  [objc_getAssociatedObject(self, UIControl_acceptEventTime) doubleValue];
}

- (void)setCs_acceptEventTime:(NSTimeInterval)cs_acceptEventTime {
    objc_setAssociatedObject(self, UIControl_acceptEventTime, @(cs_acceptEventTime), OBJC_ASSOCIATION_RETAIN_NONATOMIC);
}

// 是否需要设置延时
static const char *UIControl_acceptEventIntervalFlag = "UIControl_acceptEventIntervalFlag";

- (BOOL)cs_acceptEventIntervalFlag {
    
    return  [objc_getAssociatedObject(self, UIControl_acceptEventIntervalFlag) boolValue];
}

//YES 防止多次点击
- (void)setCs_acceptEventIntervalFlag:(BOOL)cs_acceptEventIntervalFlag {
    objc_setAssociatedObject(self, UIControl_acceptEventIntervalFlag, @(cs_acceptEventIntervalFlag), OBJC_ASSOCIATION_RETAIN_NONATOMIC);
}

// 在load时执行hook
+ (void)load {
    Method before = class_getInstanceMethod(self, @selector(sendAction:to:forEvent:));
    Method after = class_getInstanceMethod(self, @selector(cs_sendAction:to:forEvent:));
    method_exchangeImplementations(before, after);
    
    [UIControl aspect_hookSelector:@selector(cs_sendAction:to:forEvent:) withOptions:AspectPositionBefore usingBlock:^(id<AspectInfo> aspectInfo) {
        if ([aspectInfo.instance isKindOfClass:[UIControl class]]) {
            UIControl *instance = aspectInfo.instance;
            NSArray *arguments = aspectInfo.arguments;
            if (arguments.count == 3) {
                if ([arguments[1] isKindOfClass:[UITabBar class]] || [arguments[1] isKindOfClass:[UITextField class]] || [arguments[1] isKindOfClass:[UITextView class]] || instance.cs_acceptEventIntervalFlag || [instance isKindOfClass:NSClassFromString(@"HMSegmentedControl")] || [arguments[1] isKindOfClass:[UISearchBar class]] || [arguments[1] isKindOfClass:NSClassFromString(@"AVFullScreenPlaybackControlsViewController")] || [arguments[1] isKindOfClass:NSClassFromString(@"CAMViewfinderViewController")]) {
                    instance.cs_acceptEventInterval = 0;
                } else {//默认1秒内点击一次
                    instance.cs_acceptEventInterval = 1;
                }
            }
        }
    } error:nil];
}

- (void)cs_sendAction:(SEL)action to:(id)target forEvent:(UIEvent *)event {
    if ([NSDate date].timeIntervalSince1970  - self.cs_acceptEventTime < self.cs_acceptEventInterval) {
        return;
    }
    if (self.cs_acceptEventInterval > 0) {
        self.cs_acceptEventTime = [NSDate date].timeIntervalSince1970;
    }
    [self cs_sendAction:action to:target forEvent:event];
}

@end