备忘录-账号,密码和短信倒计时相关

一.创建账号和密码控件

    -(void)createKit
    {
        self.view.backgroundColor = BGCOLOR;
        
        self.phoneTF = [[UITextField alloc]initWithFrame:CGRectMake(10, 100, WIDTH - 20, 40)];
        self.phoneTF.placeholder = @"    请输入手机号码";
        self.phoneTF.textColor = TEXTCOLOR;
        self.phoneTF.backgroundColor = [UIColor whiteColor];
        self.phoneTF.font = [UIFont systemFontOfSize:16];
        self.phoneTF.layer.cornerRadius = 3;
        self.phoneTF.clipsToBounds = YES;
        self.phoneTF.delegate = self;
        self.phoneTF.keyboardType = UIKeyboardTypeNumberPad;
        [self.view addSubview:self.phoneTF];
        self.identifyingTF = [[UITextField alloc]initWithFrame:CGRectMake(10, 150, WIDTH - 130, 40)];
        self.identifyingTF.placeholder = @"    请输入验证码";
        self.identifyingTF.textColor = TEXTCOLOR;
        self.identifyingTF.backgroundColor = [UIColor whiteColor];
        self.identifyingTF.font = [UIFont systemFontOfSize:16];
        self.identifyingTF.layer.cornerRadius = 3;
        self.identifyingTF.clipsToBounds = YES;
        self.identifyingTF.keyboardType = UIKeyboardTypeNumberPad;
        [self.view addSubview:self.identifyingTF];
        
        UIButton *identifyingBtn = [UIButton buttonWithType:UIButtonTypeCustom];
        identifyingBtn.frame = CGRectMake(WIDTH - 120, 150, 110, 40);
        identifyingBtn.layer.cornerRadius = 3;
        identifyingBtn.clipsToBounds = YES;
        [identifyingBtn setTitle:@"获取验证码" forState:UIControlStateNormal];
        identifyingBtn.titleLabel.font = [UIFont systemFontOfSize:16];
        [identifyingBtn setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
        [identifyingBtn addTarget:self action:@selector(identifyingBtnClick) forControlEvents:UIControlEventTouchUpInside];
        identifyingBtn.backgroundColor = GREENCOLOR;
        [self.view addSubview:identifyingBtn];
        
        UIButton *nextBtn = [UIButton buttonWithType:UIButtonTypeCustom];
        nextBtn.frame = CGRectMake(10, 240, WIDTH - 20, 40);
        [nextBtn setTitle:@"下一步" forState:UIControlStateNormal];
        [nextBtn addTarget:self action:@selector(nextBtnClick) forControlEvents:UIControlEventTouchUpInside];
        nextBtn.layer.cornerRadius = 3;
        nextBtn.clipsToBounds = YES;
        nextBtn.backgroundColor = GREENCOLOR;
        [self.view addSubview:nextBtn];
    }

二.点击验证按钮方法

    -(void)identifyingBtnClick
    {
        NSLog(@"获取验证码");
        self.timer = [NSTimer scheduledTimerWithTimeInterval:1 target:self selector:@selector(changeTime) userInfo:nil repeats:YES];
        self.identifingBg = [[UIView alloc]initWithFrame:CGRectMake(WIDTH - 120, 150, 110, 40)];
        self.identifingBg.layer.cornerRadius = 3;
        self.identifingBg.clipsToBounds = YES;
        self.identifingBg.backgroundColor = RGBCOLOR(95, 165, 50);
        [self.view addSubview:self.identifingBg];
        
        self.timeLabel = [[UILabel alloc]initWithFrame:CGRectMake(0, 0, 110, 40)];
        self.timeLabel.text = @"倒计时(60s)";
        self.timeLabel.textColor = [UIColor whiteColor];
        self.timeLabel.font = [UIFont systemFontOfSize:16];
        self.timeLabel.textAlignment = NSTextAlignmentCenter;
        [self.identifingBg addSubview:self.timeLabel];
        
        time = 0;
    }

三.NSTimer相关方法

    -(void)changeTime
    {
        time ++;
        int value = 60 - time;
        if (value >= 0) {
            self.timeLabel.text = [NSString stringWithFormat:@"倒计时(%ds)",value];
        }else
        {
            [self.timer invalidate];
            [self.identifingBg removeFromSuperview];
        }
    }

四.回收键盘方法

    -(void)textFieldDidEndEditing:(UITextField *)textField
    {
            [self checkTel:self.phoneTF.text];
    }
    
    -(void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event
    {
        [self.view endEditing:YES];
    }

五.检验号码方法

    - (BOOL)checkTel:(NSString *)str
    
    {
        
        if ([str length] == 0) {
            
            ALERTVIEW(@"手机号码不能为空");
            
            
            return NO;
            
        }
        
        //1[0-9]{10}
        
        //^((13[0-9])|(15[^4,\\D])|(18[0,5-9]))\\d{8}$
        
        //    NSString *regex = @"[0-9]{11}";
        
        NSString *regex = @"^((13[0-9])|(17[0-9])|(147)|(15[^4,\\D])|(18[0,1,5-9]))\\d{8}$";
        
        NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", regex];
        
        BOOL isMatch = [pred evaluateWithObject:str];
        
        if (!isMatch) {
            
            UIAlertView* alert = [[UIAlertView alloc] initWithTitle:@"提示" message:@"请输入正确的手机号码" delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];
            
            [alert show];
            
            return NO;
            
        }
        
        
        
        return YES;
        
    }