iOS短信验证码

最新推荐文章于 2023-04-07 14:09:46 发布

Johnny Tong

最新推荐文章于 2023-04-07 14:09:46 发布

阅读量640

点赞数

CC 4.0 BY-SA版权

分类专栏： iOS 之旅文章标签： ios 短信验证码

本文链接：https://blog.youkuaiyun.com/tongwei117/article/details/52280972

iOS 之旅专栏收录该内容

170 篇文章

订阅专栏

本文介绍了一个简单的iOS应用中实现获取验证码按钮的方法。通过UIButton控件设置背景颜色、标题及响应点击事件来倒计时重新获取验证码的时间。文章还展示了如何使用Auto Layout进行布局。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

self.views = [UIButton new];
    self.views.backgroundColor = [UIColor redColor];
    [self.views addTarget:self action:@selector(viewsClick:) forControlEvents:UIControlEventTouchUpInside];
    [self.views setTitle:@"获取验证码" forState:UIControlStateNormal];
    [self.view addSubview:self.views];
    [self.views mas_makeConstraints:^(MASConstraintMaker *make) {
        make.center.equalTo(self.view);
        make.size.mas_equalTo(CGSizeMake(200, 40));
    }];

- (void)viewsClick:(UIButton*)button {
    timer = [NSTimer scheduledTimerWithTimeInterval:1 target:self selector:@selector(reduceTime:) userInfo:nil repeats:YES];
    timeCount = 30;
}

- (void)reduceTime:(NSTimer *)codeTimer {
    timeCount--;
    if (timeCount == 0) {
        [self.views setTitle:@"重新获取验证码" forState:UIControlStateNormal];
        [self.views setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
        UIButton *info = codeTimer.userInfo;
        info.enabled = YES;
        self.views.userInteractionEnabled = YES;
        [timer invalidate];
    } else {
        NSString *str = [NSString stringWithFormat:@"%lu秒后重新获取", (long)timeCount];
        [self.views setTitle:str forState:UIControlStateNormal];
        self.views.userInteractionEnabled = NO;

    }
}