这是一个优雅简洁的密码/验证码输入框，你可以像使用UITextField一样去使用WLUnitField。
This is an elegant and concise password/verification code text field. You can use WLUnitField just like UITextField.
- 支持自动布局（Auto layout supports）
- 提供两种界面面样式：边框和下划线（Provide two UI styles: border-based and underline-based）
- 支持自动填充验证码，仅限 iOS 12 系统（Autofill One time code supports, only for iOS 12+）
WLUnitField的使用非常简单。它继承自UIControl，你可以给它添加以下 3 种UIControlEvents：
WLUnitField is very sample to use. You use the following 3 kinds of UIControlEvents:
- UIControlEventEditingDidBegin
- UIControlEventEditingChanged
- UIControlEventEditingDidEnd
其他一些非必须的 event 已被忽略。 Some other non-essential events have been ignored.
使用示例（Case）:
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
WLUnitField *uniField = [[WLUnitField alloc] initWithInputUnitCount:4];
uniField.frame = CGRectMake(40, 40, 240, 1);
uniField.delegate = self;
uniField.unitSpace = 12;
uniField.borderRadius = 4;
[uniField sizeToFit];
[uniField addTarget:self action:@selector(unitFieldEditingChanged:) forControlEvents:UIControlEventEditingChanged];
[self.view addSubview:uniField];
}
- (IBAction)unitFieldEditingChanged:(WLUnitField *)sender {
NSLog(@"%s, %@", __FUNCTION__, sender.text);
}MIT License
