ios避免button多次连续点击跳转到多个页面

说明：这个代码我是网上找来的，忘记了出处了，抱歉

1、创建一个名称为Click的button分类

UIbutton+Click.h

#import <UIKit/UIKit.h>

@interface UIButton (WXD)

/**
*  为按钮添加点击间隔 eventTimeInterval秒
*/
@property (nonatomic, assign) NSTimeInterval eventTimeInterval;

@end

UIbutton+Click.m

#import "UIButton+WXD.h"
#import <objc/runtime.h>
#define defaultInterval 5  //默认时间间隔

@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 (WXD)

static const char *UIControl_eventTimeInterval = "UIControl_eventTimeInterval";
static const char *UIControl_enventIsIgnoreEvent = "UIControl_enventIsIgnoreEvent";

// runtime 动态绑定 属性
- (void)setIsIgnoreEvent:(BOOL)isIgnoreEvent {
objc_setAssociatedObject(self, UIControl_enventIsIgnoreEvent, @(isIgnoreEvent), OBJC_ASSOCIATION_RETAIN_NONATOMIC);
}

- (BOOL)isIgnoreEvent {
return [objc_getAssociatedObject(self, UIControl_enventIsIgnoreEvent) boolValue];
}

- (NSTimeInterval)eventTimeInterval {
return [objc_getAssociatedObject(self, UIControl_eventTimeInterval) doubleValue];
}

- (void)setEventTimeInterval:(NSTimeInterval)eventTimeInterval {
objc_setAssociatedObject(self, UIControl_eventTimeInterval, @(eventTimeInterval), OBJC_ASSOCIATION_RETAIN_NONATOMIC);
}

+ (void)load {
// Method Swizzling
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
SEL selA = @selector(sendAction:to:forEvent:);
SEL selB = @selector(_wxd_sendAction: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{
//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)_wxd_sendAction:(SEL)action to:(id)target forEvent:(UIEvent *)event {
self.eventTimeInterval = self.eventTimeInterval == 0 ? defaultInterval : self.eventTimeInterval;
if (self.isIgnoreEvent){
return;
}else if (self.eventTimeInterval > 0){
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(self.eventTimeInterval * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
[self setIsIgnoreEvent:NO];
});
}

self.isIgnoreEvent = YES;
// 这里看上去会陷入递归调用死循环，但在运行期此方法是和sendAction:to:forEvent:互换的，相当于执行sendAction:to:forEvent:方法，所以并不会陷入死循环。
[self _wxd_sendAction:action to:target forEvent:event];
}

2、然后把这个类别加入工程，此时button的点击间隔为1秒。

也可以这样：button.eventTimeInterval = 5;