iOS UIButton 禁止连续点击问题/快速点击/重复点击

一.设置button 属性

- (void)buttonClicked:(UIButton *)sender {
    
    sender.enabled = NO;
    
    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(2.0 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
        sender.enabled = YES;
    });
}

二.通过NSObject的+cancelPreviousPerformRequestsWithTarget:selector:object:方法和-performSelector:withObject:afterDelay:方法
这个方法如果设置时间是2秒,每次点击间隔小于2秒的话,它会一直取消前一个事件,直到点击间隔大于2秒才会执行事件,造成延时

- (void)buttonClicked:(UIButton *)sender {
    
    [NSObject cancelPreviousPerformRequestsWithTarget:self selector:@selector(buttonClickedAction:) object:sender];
    [self performSelector:@selector(buttonClickedAction:) withObject:sender afterDelay:2.0];
}

三.用runtime 给button 添加 时间间隔属性
.h 文件

#import <UIKit/UIKit.h>

NS_ASSUME_NONNULL_BEGIN

@interface UIButton (YN_FixMultiClick)
@property (nonatomic, assign) NSTimeInterval yn_acceptEventInterval; // 重复点击的间隔
@end

NS_ASSUME_NONNULL_END

.m文件

#import "UIButton+YN_FixMultiClick.h"
#import <objc/runtime.h>
#define defaultInterval 0.0003  //默认时间间隔,不能太长，以免影响系统拍照等功能

@interface UIButton ()
/**
 *  bool YES 忽略点击事件   NO 允许点击事件
 */
@property (nonatomic, assign) BOOL isIgnoreEvent;
@end

@implementation UIButton (YN_FixMultiClick)
static const char *UIControl_acceptEventInterval   = "UIControl_acceptEventInterval";
static const char *UIControl_enventIsIgnoreEvent = "UIControl_enventIsIgnoreEvent";

+ (void)load {
    // Method Swizzling
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        //根据selector查找Method
        SEL selA = @selector(sendAction:to:forEvent:);
        SEL selB = @selector(new_sendAction:to:forEvent:);
        Method methodA = class_getInstanceMethod(self,selA);
        Method methodB = class_getInstanceMethod(self, selB);
        //添加自定义方法
        BOOL isAdd = class_addMethod(self, selA, method_getImplementation(methodB), method_getTypeEncoding(methodB));
        
        if (isAdd) {//添加成功->替换
            class_replaceMethod(self, selB, method_getImplementation(methodA), method_getTypeEncoding(methodA));
        }else{//添加不成功->交换
            //添加失败了 说明本类中有methodB的实现，此时只需要将methodA和methodB的IMP互换一下即可。
            method_exchangeImplementations(methodA, methodB);
        }
    });
}
- (void)new_sendAction:(SEL)action to:(id)target forEvent:(UIEvent *)event {
    self.yn_acceptEventInterval = self.yn_acceptEventInterval == 0 ? defaultInterval : self.yn_acceptEventInterval;
    if (self.isIgnoreEvent){//默认可以响应点击事件
        return;
    }else if (self.yn_acceptEventInterval > 0){//第一次点击，设定eventTimeInterval后，可以响应点击事件
//        dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(self.yn_acceptEventInterval * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
//            [self setIsIgnoreEvent:NO];
//        });
        [self performSelector:@selector(setIsIgnoreEvent:) withObject:@(NO) afterDelay:self.yn_acceptEventInterval];
    }
    self.isIgnoreEvent = YES;//设置不可以响应点击事件
    [self new_sendAction:action to:target forEvent:event];
}

// runtime 动态绑定 属性
- (BOOL)isIgnoreEvent{
    return [objc_getAssociatedObject(self, UIControl_enventIsIgnoreEvent) boolValue];
}

- (void)setIsIgnoreEvent:(BOOL)isIgnoreEvent {
    objc_setAssociatedObject(self, UIControl_enventIsIgnoreEvent, @(isIgnoreEvent), OBJC_ASSOCIATION_RETAIN_NONATOMIC);
}

-(void)setYn_acceptEventInterval:(NSTimeInterval)yn_acceptEventInterval{
    objc_setAssociatedObject(self, UIControl_acceptEventInterval, @(yn_acceptEventInterval), OBJC_ASSOCIATION_RETAIN_NONATOMIC);
}
-(NSTimeInterval)yn_acceptEventInterval{
    return [objc_getAssociatedObject(self, UIControl_acceptEventInterval) doubleValue];
}
@end

使用

- (void)viewDidLoad {
    [super viewDidLoad];
    
    UIButton * btn = [[UIButton alloc]init];
    [self.view addSubview:btn];
    [btn mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.offset = 100;
        make.left.offset = 100;
        make.width.height.offset = 100;
    }];
    btn.backgroundColor = UIColor.redColor;
    btn.yn_acceptEventInterval = 3;
    [btn addTarget:self action:@selector(clickBtn) forControlEvents:UIControlEventTouchUpInside];
 
    
}
-(void)clickBtn{
    NSLog(@"点击了Btn");
}

效果

连续点击的时候3秒一次响应