iOS 仿写 支付宝 验证码输入

  简单原理就是 用textfeild 输入 ，隐藏掉textfeild；创建六个label 显示六个字符，再加上判断处理。把功能做好了没有做封装，有需要可以私密我。

代码如下：

    _strArr = [NSMutableArray array];
    _inputBgView = [[UIView alloc]initWithFrame:CGRectMake(40, 60, 145, 30)];
    [self.view addSubview:_inputBgView];
    
    _labArr = [NSMutableArray new];
    for (NSInteger index = 0; index < 6; index ++) {
        UILabel *label  = [[UILabel alloc]initWithFrame:CGRectMake( (5 + 20) * index, 0, 20, 20)];
        label.backgroundColor = [UIColor redColor];
        label.textColor = [UIColor yellowColor];
        label.textAlignment = NSTextAlignmentCenter;
        [self.inputBgView addSubview:label];
        [_labArr addObject:label];
    }
    

    _cyTextField  = [[CYTextField alloc]initWithFrame:_inputBgView.bounds];
    _cyTextField.isClosePaste = YES;
    // UITextField关闭系统自动联想和首字母大写功能
    [_cyTextField setAutocorrectionType:UITextAutocorrectionTypeNo];
    [_cyTextField setAutocapitalizationType:UITextAutocapitalizationTypeNone];
    _cyTextField.keyboardType = UIKeyboardTypeNumberPad;
    _cyTextField.clearButtonMode = UITextFieldViewModeNever;
    _cyTextField.font = [UIFont systemFontOfSize:14];
    _cyTextField.delegate = self;
    _cyTextField.tintColor = [UIColor clearColor];
    _cyTextField.backgroundColor = [UIColor clearColor];
    _cyTextField.placeholder = @"";
    _cyTextField.textColor = [UIColor clearColor];
    [_cyTextField addTarget:self action:@selector(valeChange:) forControlEvents:UIControlEventEditingChanged];
    [self.inputBgView addSubview:_cyTextField];
    

demo：https://github.com/MuRanJiangXia/inputpalyCyan