引言
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，代码就十分臃肿了。所以封装一个倒计时按钮就迫在眉睫了。传送门HLCountDownButton，欢迎帮忙点点小星星🌟🌟
- ✅ 支持过
xib、storyboard自定义样式 - ✅ 支持切换前后台计时准确
- ✅ 多种样式切换
- ✅ 支持
CocoaPods导入pod "HLCountDownButton" - ✅ 支持全局设置样式
演示图
可选自定义属性
/// 样式，默认HLCountDownButtonTypeNormal @property (nonatomic, assign) IBInspectable NSInteger hlType UI_APPEARANCE_SELECTOR; /// 是否可用，默认YES @property (nonatomic, assign) IBInspectable BOOL hlEnabled UI_APPEARANCE_SELECTOR; /// 正常标题，默认“获取验证码” @property (nonatomic, copy) IBInspectable NSString *normalTitle UI_APPEARANCE_SELECTOR; /// 重新获取标题，默认“获取验证码” @property (nonatomic, copy) IBInspectable NSString *againTitle UI_APPEARANCE_SELECTOR; /// 发送中标题格式，默认“%ds 后获取” @property (nonatomic, copy) IBInspectable NSString *sendingTitleFormat UI_APPEARANCE_SELECTOR; /// 高亮颜色，默认0x4181FE @property (nonatomic, strong) IBInspectable UIColor *highlightedColor UI_APPEARANCE_SELECTOR; /// 非高亮颜色，默认0xd2d2d2 @property (nonatomic, strong) IBInspectable UIColor *disabledColor UI_APPEARANCE_SELECTOR; /// 圆角半径，默认4 @property (nonatomic, assign) IBInspectable CGFloat cornerRadius UI_APPEARANCE_SELECTOR; /// 边框宽度，默认0.5 @property (nonatomic, assign) IBInspectable CGFloat borderWidth UI_APPEARANCE_SELECTOR; /// 倒计时长，默认60s @property (nonatomic, assign) IBInspectable NSInteger countDownSize UI_APPEARANCE_SELECTOR;
3种样式选择
typedef NS_ENUM(NSInteger, HLCountDownButtonType) {
HLCountDownButtonTypeNormal, ///< 无背景，无边框
HLCountDownButtonTypeOnlyLine, ///< 无背景，有边框
HLCountDownButtonTypeOnlyBackground, ///< 有背景，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];
};
注意：点击了会有startBlock回调，就不要为HLCountDownButton添加点击Action了
全局样式设置
如果您项目中多个地方使用到该组件，您可以全局设置样式，例在AppDelegate添加
[HLCountDownButton appearance].highlightedColor = [UIColor redColor];
注意：代码 > appearance > interface builder，所以appearance设置的会覆盖在xib或storyboard中设置的属性，当然代码会覆盖appearance设置
以上就是iOS封装倒计时按钮HLCountDownButton示例详解的详细内容，更多关于iOS封装HLCountDownButton的资料请关注Devmax其它相关文章！