日期滚轮，可直接添加view，也可弹窗，有多种样式可以选择。直接闭包返回选定Date。
| 选择时间间隔--默认时间（当前） | 选择时间间隔--包含上轮选定时间 | 系统Picker选择日期--默认时间 |
|---|---|---|
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| 系统Picker选择日期--选定时间 | 自定义Picker--默认时间 | 自定义Picker--选定时间--更改标题 |
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安装
Cocoapods
1.在 Podfile 中添加 pod ‘SwiftDatePicker’
2.执行 pod install 或 pod update
3.导入 import SwiftDatePicker
Swift Package Manager
从 Xcode 11 开始，集成了 Swift Package Manager，使用起来非常方便。SwiftDatePicker 也支持通过 Swift Package Manager 集成。
在 Xcode 的菜单栏中选择 File > Swift Packages > Add Pacakage Dependency，然后在搜索栏输入
https://github.com/jackiehu/SwiftDatePicker，即可完成集成。
手动集成
SwiftDatePicker 也支持手动集成，只需把Sources文件夹中的SwiftDatePicker文件夹拖进需要集成的项目即可
用法
添加View
初始化View，并添加
let pick = DatePickerView(type: .pickerDateHourMinute, minYear: 1999, maxYear: 2030) { (date) in
print("\(date)")
}
view.addSubview(pick)
pick.snp.makeConstraints { (m) in
m.left.right.equalToSuperview()
m.top.equalToSuperview().offset(50)
m.height.equalTo(200)
}API
/// 初始化DatePickerView
/// - Parameters:
/// - type: DatePickerStyle样式
/// - selectDate: 已选定时间
/// - minYear: 滚轮最小年份(不需要选择年费可不加)
/// - maxYear: 滚轮最大年份(不需要选择年费可不加)
/// - showUnit: 是否显示单位(年月日等)
/// - callBack: 回调Date
public convenience init(type: DatePickerStyle,
selectDate: Date = Date(),
minYear: Int = Date().getYear(),
maxYear: Int = Date().getYear() + 5,
showUnit: Bool = true,
callBack: @escaping PickerClosure)弹窗
直接调用静态方法即可
DatePickerVC.showPicker(pickerType: .pickerMonthDayHour) { (bar) in
bar.titleString = "选择日期"
bar.barStyle = .titleLeft
bar.barColor = .orange
bar.leftNorImage = UIImage(named: "image_cancle")
bar.rightNorImage = UIImage(named: "image_done")
bar.leftWidth = 40
bar.rightWidth = 40
} dateCallBack: { (date) in
print("\(String(describing: date))")
} dismissCallBack: {
print("close")
}API
/// 弹出UIDatePickerVC
/// - Parameters:
/// - mode: UIDatePicker.Mode 系统UIDatePicker的样式
/// - selectDate: 已选定时间
/// - headConfig: 顶部Bar适配器回调
/// - dateCallBack: 选择日期回调
/// - dismissCallBack: 收起视图回调
public static func showPicker(mode: UIDatePicker.Mode,
selectDate: Date = Date(),
headConfig: HeadBarConfig,
dateCallBack: @escaping PickerClosure,
dismissCallBack: @escaping CloseClosure) /// 弹出自定义DatePickerVC
/// - Parameters:
/// - pickerType: DatePickerStyle的样式
/// - selectDate: 已选定时间
/// - headConfig: 顶部Bar适配器回调
/// - dateCallBack: 选择日期回调
/// - dismissCallBack: 收起视图回调
public static func showPicker(pickerType: DatePickerStyle = .pickerDate,
selectDate: Date = Date(),
headConfig: HeadBarConfig,
dateCallBack: @escaping PickerClosure,
dismissCallBack: @escaping CloseClosure) /// 弹出选择起始+结束时间
/// - Parameters:
/// - startDate: 已选定开始时间
/// - endDate: 已选定结束时间
/// - headConfig: 顶部Bar适配器回调
/// - dateCallBack: 选择日期回调
/// - dismissCallBack: 收起视图回调
public static func showPicker(startDate: Date = Date(),
endDate: Date = Date(),
headConfig: HeadBarConfig,
dateCallBack: @escaping TimeIntervalClosure,
dismissCallBack: @escaping CloseClosure)Bar适配器
public class HeadBar {
///bar样式 标题居中/标题居左
public var barStyle: BarStyle = .titleCenter
///bar背景色
public var barColor: UIColor?
///bar高度
public var barHeight: CGFloat?
///bar标题字体
public var titleFont: UIFont?
///bar按钮字体
public var buttonFont: UIFont?
///bar标题
public var titleString: String?
///bar左按钮标题
public var leftString: String?
///bar右按钮标题
public var rightString: String?
///bar左按钮图片
public var leftNorImage: UIImage?
///bar右按钮图片
public var rightNorImage: UIImage?
///bar左按钮按下图片
public var leftHigImage: UIImage?
///bar右按钮按下图片
public var rightHigImage: UIImage?
///bar标题字体颜色
public var barTitleColor: UIColor?
///bar左按钮字体颜色
public var leftNorColor: UIColor?
///bar右按钮字体颜色
public var rightNorColor: UIColor?
///bar左按钮按下字体颜色
public var leftHigColor: UIColor?
///bar右按钮按下字体颜色
public var rightHigColor: UIColor?
///bar左按钮宽度
public var leftWidth: CGFloat?
///bar右按钮宽度
public var rightWidth: CGFloat?
}全局DatePicker适配器（静态）
///DatePicker适配器
public struct DatePicker {
///滚轮内字体
public static var pickerFont: UIFont?
///滚轮内字体颜色
public static var pickerTextColor: UIColor?
///滚轮整体背景色
public static var pickerBackColor: UIColor?
///滚轮宽度
public static var pickerWidth: CGFloat?
///滚轮高度
public static var pickerHeight: CGFloat?
///滚轮最小年
public static var minYear: Int?
///滚轮最大年
public static var maxYear: Int?
}