iOS封装一个优秀的倒计时按钮HLCountDownButton

在开发中经常会用到倒计时的按钮，常用在发送短信验证码中。最差的写法是把代码写在ViewController中。这样的话如果项目中存在多个倒计时按钮，代码就非常臃肿了。所以appstore封装一个倒计时按钮就火烧眉毛了。传送门HLCountDownButton，欢迎帮助点点小星星

• ✅ 支撑过xib、storyboard自定义款式
• ✅按钮开关怎么接 支撑切换前后台计时准确
• ✅ 多种款式切换
• ✅ 支撑CocoaPods导入pod "HLCountDownButton"
• ✅ 支撑大局设置款式

演示图

可选自定appear义特点

/// 款式，默许HLCountDownButtonTypeNormal
@property (nonatomic, assign) IBInspectable NSInteger hlType UI_APPEARANCE_SELECTOR;
/// 是否可用，默许YES
@property (nonatomic, assign) IBInspectable BOOL hlEnabled UI_APPEARANCE_SELECTOR;
/// 正常标题，默许“获取验证码”
@property (nonatomic, copy) IBInspectable NSString *normalTitle UI_APPEARANCE_SELECTOR;
/// 重新获取标题，默许“获取验证码”
@property (nonatomic, copy) IBInspectable NSString *againTitle UI_APPEARANCE_SELECTOR;
/// 发送中标题格式，默许“%ds 后获取”
@property (nonatomic, copy) IBInspectable NSString *sendingTitleFormat UI_APPEARANCE_SELECTOR;
/// 高亮颜色，默许0x4181FE
@property (nonatomic, strong) IBInspectable UIColor *highlightedColor UI_APPEARANCE_SELECTOR;
/// 非高亮颜色，默许0xd2d2d2
@property (nonatomic, strong) IBInspectable UIColor *disabledColor UI_APPEARANCE_SELECTOR;
/// 圆角半径，默许4
@property (nonatomic, assign) IBInspectable CGFloat cornerRadius UI_APPEARANCE_SELECTOR;
/// 边框宽度，默许0.5
@property (nonatomic, assign) IBInspectable CGFloat borderWidth UI_APPEARANCE_SELECTOR;
/// 倒计时长，默许60s
@property (nonatomic, assign) IBInspectable NSInteger countDownSize UI_APPEARANCE_SELECTOR;

3种款式挑appetite选

typedef NS_ENUM(NSInteger, HLCountDownButtonType) {
    HLCountDownButtonTypeNormal,            ///< 无布景，无边框
    HLCountDownButtonTypeOnlyLine,          ///< 无布景，有边框
    HLCountDownButtonTypeOnlyBackground,    ///< 有布景，无边框
};

回调说明

__weak typeof(self) weakSelf = self;
self.countDownButton.startBlock = ^(){
    // TODO 点击了倒计时按钮，这里可进行发送验证码操作
    // [weakSelf sendCodeMsg];
};

留意：点击了会有startBlock回调，就不要为HLappointmentCountDownButt按钮开关on增加点击Actionappreciate了

大局款式设置

如果您项目中多个当地使用到该组件，您可以大局设置款式，例在AppDelegate增加

[HLCountDownButton appearance].highlightedColor = [UIColor redColor];

留意：代码 > appearance > interface builder，所appreciate以appearance设置的会掩盖在xib或storyboard中设置的appetite特点，当然代码会掩盖appearance设置

如果你觉得封装的还行，帮助小星星支撑一下。传appstore送门HLCoappearuntDownButton