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

QQ20220610-112617.png gif

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

如果你觉得封装的还行，帮忙小星星🌟🌟支持一下。传送门HLCountDownButton