Solve the problem of repeated clicking of button uibutton

1、 Set whether you can click Properties NO Do not click   YES You can click on the enabled / userInteractionEnabled

Initialize a UIButton

    UIButton *btn = [[UIButton alloc]init];

    [btn setTitle:@"Start" forState:UIControlStateNormal];

    [btn setTitleColor:[UIColor redColor] forState:UIControlStateNormal];

    [btn setTitleColor:[UIColor grayColor] forState:UIControlStateDisabled];  

    btn.frame = CGRectMake(150, 200, 100, 40);

    btn.layer.cornerRadius = 8.f;

    btn.backgroundColor = [UIColor groupTableViewBackgroundColor];

    [btn addTarget:self action:@selector(btnClick:) forControlEvents:UIControlEventTouchUpInside];

    [self.view addSubview:btn];

Click on the way

- (void)btnClick:(UIButton *)btn{

    btn.enabled = NO;

    dispatch_time_t t = dispatch_time(DISPATCH_TIME_NOW, (int64_t)(1.5 * NSEC_PER_SEC));

    dispatch_after(t, dispatch_get_main_queue(), ^{

        btn.enabled = YES;

    });

}

2、 Use runtime Exchange methods to achieve 2s You cannot click repeatedly in

Class implementation exchange method code

#import <UIKit/UIKit.h>

 

NS_ASSUME_NONNULL_BEGIN

 

@interface UIControl (Extension)

 

@end

 

NS_ASSUME_NONNULL_END

#import "UIControl+Extension.h"

#import <objc/runtime.h>

 

staticchar *const ExchangeInvalid = "exchangeInvalid";    // Can I click

 

@interface UIControl()

 

@property (nonatomic,assign)BOOL exchangeInvalid;  // Can I click

 

@end

 

@implementation UIControl (Extension)

 

#pragma mark Exchange method

+ (void)load {

    Method clickMethod = class_getInstanceMethod(self, @selector(sendAction:to:forEvent:));

    Method exchange_clickMethod = class_getInstanceMethod(self, @selector(exchange_sendAction:to:forEvent:));

    method_exchangeImplementations(clickMethod, exchange_clickMethod);

}

 

#pragma mark Method of realizing exchange

- (void)exchange_sendAction:(SEL)action to:(id)target forEvent:(UIEvent *)event {

    if (!self.exchangeInvalid) {

        self.exchangeInvalid = YES;

        [self exchange_sendAction:action to:target forEvent:event];

        [self performSelector:@selector(setExchangeInvalid:) withObject:@(NO) afterDelay:2]; // Set up 2 Seconds before clicking

    }

}

 

#pragma mark @property attribute set/get Method

- (BOOL)exchangeInvalid {

    return [objc_getAssociatedObject(self, ExchangeInvalid) boolValue];

}

 

- (void)setExchangeInvalid:(BOOL)exchangeInvalid {

    objc_setAssociatedObject(self, ExchangeInvalid, @(exchangeInvalid), OBJC_ASSOCIATION_RETAIN_NONATOMIC);

}

 

 

@end

viewDidLoad Implementation code

UIButton *btn = [[UIButton alloc]init];

    [btn setTitle:@"Start" forState:UIControlStateNormal];

    [btn setTitleColor:[UIColor redColor] forState:UIControlStateNormal];

    [btn setTitleColor:[UIColor grayColor] forState:UIControlStateDisabled];

    btn.frame = CGRectMake(150, 200, 100, 40);

    btn.layer.cornerRadius = 8.f;

    btn.backgroundColor = [UIColor groupTableViewBackgroundColor];

    [btn addTarget:self action:@selector(btnClick:) forControlEvents:UIControlEventTouchUpInside];

    btn.tag = 0;

    [self.view addSubview:btn];

- (void)btnClick:(UIButton *)btn{

    NSLog(@"%ld",btn.tag);

    btn.tag ++;

}

The print result shows