先看效果：
屏幕快照 2017-04-07 上午11.57.23.png
首先，把控件的尺寸和间距写成宏，方便后续修改
import UIKit
fileprivate let kGaoJianLongScreenWidth: CGFloat = UIScreen.main.bounds.size.width
fileprivate let kGaoJianLongScreenHeight: CGFloat = UIScreen.main.bounds.size.height
fileprivate let kGaoJianLongWidthScale: CGFloat = 375.0
fileprivate let kGaoJianLongHeightScale: CGFloat = 667.0
//弹窗距离左右边距
fileprivate let kGaoJianLongSpaceLeftOrRight: CGFloat = 35
//弹窗距离上边距
fileprivate let kGaoJianLongSpaceTop: CGFloat = 114
//弹窗宽度
fileprivate let kGaoJianLongPopView_Width: CGFloat = kGaoJianLongScreenWidth - (kGaoJianLongSpaceLeftOrRight * 2)
//弹窗高度
fileprivate let kGaoJianLongPopView_Height: CGFloat = 220
//时间选择器的高度
fileprivate let kGaoJianLongDatePicker_Height: CGFloat = 200
声明属性（类似视图类的属性用懒加载的方式较好些）
// 代理属性
var delegate : JLBTimePopViewDelegate?
// MARK: 属性
fileprivate lazy var coverView : UIView = {
let v = UIView()
v.frame = CGRect.init(x: 0, y: 0, width: kGaoJianLongScreenWidth, height: kGaoJianLongScreenHeight)
v.backgroundColor = UIColor.black
v.alpha = 0
return v
}()
fileprivate lazy var popView : UIView = {
let v = UIView()
v.frame = CGRect.init(x: kGaoJianLongSpaceLeftOrRight, y: kGaoJianLongSpaceTop, width: kGaoJianLongPopView_Width, height: kGaoJianLongPopView_Height)
v.backgroundColor = UIColor.white
v.layer.masksToBounds = true;
v.layer.cornerRadius = 10;
v.alpha = 0
return v
}()
fileprivate lazy var startBtn: UIButton = {
let btn = UIButton.init(type: .custom)
btn.setTitleColor(JLBTimePopView.kRgbColor(r: 51, g: 51, b: 51), for: .normal)
btn.setTitleColor(JLBTimePopView.kRgbColor(r: 15, g: 156, b: 254), for: .selected)
btn.titleLabel?.font = UIFont.systemFont(ofSize: 17);
btn.titleLabel?.textAlignment = .right;
btn.addTarget(self, action: #selector(startBtnAction(btn:)), for: .touchUpInside)
let date = self.datePicker.date
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "yyyy-MM-dd"
let titleString = dateFormatter.string(from: date)
btn.setTitle(titleString, for: .normal)
btn.isSelected = true
return btn
}()
fileprivate lazy var endBtn: UIButton = {
let btn = UIButton.init(type: .custom)
btn.setTitleColor(JLBTimePopView.kRgbColor(r: 51, g: 51, b: 51), for: .normal)
btn.setTitleColor(JLBTimePopView.kRgbColor(r: 15, g: 156, b: 254), for: .selected)
btn.titleLabel?.font = UIFont.systemFont(ofSize: 17)
btn.titleLabel?.textAlignment = .left
btn.addTarget(self, action: #selector(endBtnAction(btn:)), for: .touchUpInside)
btn.setTitle("2016-09-30", for: .normal)
return btn
}()
fileprivate lazy var cancelBtn: UIButton = {
let btn = UIButton.init(type: .custom)
btn.frame = CGRect.init(x: 0, y: self.popView.frame.height - 49, width: (self.popView.frame.width - 1) / 2.0, height: 49)
btn.setTitle("取消", for: .normal)
btn.setTitleColor(JLBTimePopView.kRgbColor(r: 51, g: 51, b: 51), for: .normal)
btn.titleLabel?.font = UIFont.systemFont(ofSize: 16)
btn.addTarget(self, action: #selector(cancelBtnAction), for: .touchUpInside)
return btn
}()
fileprivate lazy var confirmBtn: UIButton = {
let btn = UIButton.init(type: .custom)
let x: CGFloat = self.popView.frame.width - self.cancelBtn.frame.width - 1
let y: CGFloat = self.popView.frame.height - 49
let w: CGFloat = (self.popView.frame.width - 1) / 2.0
let h: CGFloat = 49
btn.frame = CGRect.init(x: x, y: y, width: w, height: h)
btn.setTitle("确定", for: .normal)
btn.setTitleColor(JLBTimePopView.kRgbColor(r: 51, g: 51, b: 51), for: .normal)
btn.titleLabel?.font = UIFont.systemFont(ofSize: 16)
btn.addTarget(self, action: #selector(confirmBtnAction), for: .touchUpInside)
return btn
}()
fileprivate var datePicker: UIDatePicker = UIDatePicker()
初始化
class JLBTimePopView: UIView {
override init(frame: CGRect)
{
super.init(frame: frame)
UIApplication.shared.keyWindow?.addSubview(self)
self.frame = self.superview?.bounds ?? UIScreen.main.bounds
self.addSubview(coverView)
self.addSubview(datePicker)
self.addSubview(popView)
setDatePickerStyle()
setPopView()
}
required init?(coder aDecoder: NSCoder)
{
fatalError("init(coder:) has not been implemented")
}
class func shareTimePopView() -> JLBTimePopView
{
return JLBTimePopView.init(frame: UIScreen.main.bounds)
}
class func showPopView(delegate:JLBTimePopViewDelegate) -> JLBTimePopView
{
let popView = JLBTimePopView.shareTimePopView()
popView.delegate = delegate
popView.show()
return popView
}
class func showPopView(delegate: JLBTimePopViewDelegate, startDate: String, endDate: String) -> JLBTimePopView
{
let popView = JLBTimePopView.shareTimePopView()
popView.delegate = delegate
let formatter = DateFormatter()
formatter.setLocalizedDateFormatFromTemplate("yyyy-MM-dd")
let date = formatter.date(from: startDate)
popView.datePicker.setDate(date ?? popView.datePicker.date, animated: false)
popView.startBtn.setTitle(startDate, for: .normal)
popView.endBtn.setTitle(endDate, for: .normal)
popView.show()
return popView
}
fileprivate func show()
{
UIView.animate(withDuration: 0.25, animations: { [weak self] in
self?.coverView.alpha = 0.5;
self?.popView.alpha = 1;
self?.datePicker.alpha = 1;
}) { (finished) in
}
}
fileprivate func dismiss()
{
UIView.animate(withDuration: 0.25, animations: { [weak self] in
self?.coverView.alpha = 0;
self?.popView.alpha = 0;
self?.datePicker.alpha = 0;
}) { (finished) in
self.removeFromSuperview()
}
}
}
swift中类方法的声明，在func标识符之前加一个class即可
//类方法
class func shareTimePopView() -> JLBTimePopView
{
return JLBTimePopView.init(frame: UIScreen.main.bounds)
}
对象方法的声明，直接用func标识即可
//实例方法
func startBtnAction(btn: UIButton)
{
btn.isSelected = true
endBtn.isSelected = false
rollCurrentDate(btn: btn)
}
苹果官方建议，把数据源代理方法单独写到一个扩展中，以便提高代码的可读性
在这里，我把自定义的一些私有方法写在了扩展中，同样是为了提高代码可读性
格式如下：
extension + 类名 {
}
extension JLBTimePopView {
}
extension JLBTimePopView {
fileprivate class func kRgbColor(r: CGFloat, g: CGFloat, b: CGFloat) -> UIColor
{
return UIColor.init(red: r / 255.0, green: g / 255.0, blue: b / 255.0, alpha: 1)
}
fileprivate func rollCurrentDate(btn: UIButton)
{
let dateStr: String? = btn.currentTitle
let formatter: DateFormatter = DateFormatter()
formatter.setLocalizedDateFormatFromTemplate("yyyy-MM-dd")
let date: Date = formatter.date(from: dateStr ?? "2017-06-06")!
datePicker.setDate(date, animated: true)
}
/// 设置日期选择器相关属性
fileprivate func setDatePickerStyle()
{
datePicker.alpha = 0
datePicker.frame = CGRect.init(x: 0, y: kGaoJianLongScreenHeight - kGaoJianLongDatePicker_Height + 20, width: kGaoJianLongScreenWidth, height: kGaoJianLongDatePicker_Height)
datePicker.backgroundColor = UIColor.white
datePicker.datePickerMode = .date;
let minDate: Date = Date.init(timeIntervalSince1970: 60 * 60)
let maxDate: Date = Date.init(timeIntervalSinceNow: 60 * 60)
datePicker.minimumDate = minDate
datePicker.maximumDate = maxDate
datePicker.addTarget(self, action: #selector(datePicekerValueChanged(picker:)), for: .valueChanged)
}
/// 设置popView上的子控件
fileprivate func setPopView()
{
//第一部分
let titleLabel = UILabel()
titleLabel.frame = CGRect.init(x: 0, y: 0, width: popView.frame.width, height: 50)
titleLabel.text = "请选择统计时间"
titleLabel.font = UIFont.systemFont(ofSize: 14)
titleLabel.textColor = JLBTimePopView.kRgbColor(r: 153, g: 153, b: 153)
titleLabel.textAlignment = .center;
popView.addSubview(titleLabel)
let topLineView = UIView()
topLineView.frame = CGRect.init(x: 0, y: 50, width: popView.frame.width, height: 1)
topLineView.backgroundColor = JLBTimePopView.kRgbColor(r: 242, g: 242, b: 242)
popView.addSubview(topLineView)
//第二部分
popView.addSubview(self.startBtn)
self.startBtn.frame = CGRect.init(x: 20, y: topLineView.frame.maxY + 20, width: (popView.frame.width - 60) / 2.0, height: popView.frame.height - 100 - 40)
let tempLabel = UILabel()
tempLabel.frame = CGRect.init(x: self.startBtn.frame.maxX, y: self.startBtn.frame.minY, width: 20, height: self.startBtn.frame.height)
tempLabel.textAlignment = .center
tempLabel.text = "至"
tempLabel.font = UIFont.systemFont(ofSize: 14)
tempLabel.textColor = JLBTimePopView.kRgbColor(r: 153, g: 153, b: 153)
popView.addSubview(tempLabel)
popView.addSubview(self.endBtn)
self.endBtn.frame = CGRect.init(x: tempLabel.frame.maxX, y: self.startBtn.frame.minY, width: self.startBtn.frame.width, height: self.startBtn.frame.height)
let bottomLineView = UIView()
bottomLineView.frame = CGRect.init(x: 0, y: kGaoJianLongPopView_Height - 50, width: popView.frame.width, height: 1)
bottomLineView.backgroundColor = JLBTimePopView.kRgbColor(r: 242, g: 242, b: 242)
popView.addSubview(bottomLineView)
//第三部分
popView.addSubview(self.cancelBtn)
let verticalLineView: UIView = UIView()
verticalLineView.frame = CGRect.init(x: self.cancelBtn.frame.width, y: self.cancelBtn.frame.minY, width: 1, height: self.cancelBtn.frame.height)
verticalLineView.backgroundColor = JLBTimePopView.kRgbColor(r: 242, g: 242, b: 242)
popView.addSubview(verticalLineView)
popView.addSubview(self.confirmBtn)
}
}
使用的时候把JLBTimePopView.swift这个类拷贝到项目中，调用方式如下：
func showNewOrder(btn: UIButton)
{
print("\("新订单")")
_ = JLBTimePopView.showPopView(delegate: self as JLBTimePopViewDelegate)
}
实现代理方法，获取选中的日期时间：
extension ViewController: JLBTimePopViewDelegate
{
func getStartDate(startDate: String, endDate: String)
{
print("开始时间：\(startDate)" + "结束时间：\(endDate)")
}
}
