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一个倒计时的button

一个倒计时的button

作者: 大牛大神 | 来源:发表于2016-12-12 15:48 被阅读18次

    //在button的点击事件里

    -(void)MassageButton{

    if ([self validateMobile:self.TphoneNumer] ) {

    [self startTime];

    if (self.massagebutton.selected) {

    //根据电话号码发送请求

    if ([self validateMobile:self.TphoneNumer]) {

    [[ZQNetworkingTools shareInstance ]getlMassageSuccess:^(id responseObject) {

    [self jumpwith:@"短信验证码发送成功300秒可用"];

    } failure:^(NSError *error) {

    [self jumpwith:@"短信验证码发送失败"];

    } withMoboe:self.TphoneNumer];

    }

    }

    }else{

    zqShowAlert(@"账号", @"请确认为可用手机号码");

    }

    }

    -(void)startTime{

    __block int timeout= 59; //倒计时时间

    dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);

    dispatch_source_t _timer = dispatch_source_create(DISPATCH_SOURCE_TYPE_TIMER, 0, 0,queue);

    dispatch_source_set_timer(_timer,dispatch_walltime(NULL, 0),1.0*NSEC_PER_SEC, 0); //每秒执行

    dispatch_source_set_event_handler(_timer, ^{

    if(timeout<=0){ //倒计时结束,关闭

    dispatch_source_cancel(_timer);

    dispatch_async(dispatch_get_main_queue(), ^{

    //设置界面的按钮显示 根据自己需求设置

    [ self.massagebutton setTitle:@"获取" forState:UIControlStateNormal];

    self.massagebutton.backgroundColor = BLUE;

    self.massagebutton.userInteractionEnabled = YES;

    });

    }else{

    //            int minutes = timeout / 60;

    int seconds = timeout % 60;

    NSString *strTime = [NSString stringWithFormat:@"%.2d", seconds];

    dispatch_async(dispatch_get_main_queue(), ^{

    //设置界面的按钮显示 根据自己需求设置

    [UIView beginAnimations:nil context:nil];

    [UIView setAnimationDuration:1];

    self.massagebutton.backgroundColor = GRAY;

    [ self.massagebutton setTitle:[NSString stringWithFormat:@"%@秒重发",strTime] forState:UIControlStateNormal];

    [UIView commitAnimations];

    self.massagebutton.userInteractionEnabled = NO;

    });

    timeout--;

    }

    });

    dispatch_resume(_timer);

    }

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