效果图
实现效果:
controller弹出时:半透明背景渐变展示.地址选择器从下方弹出.
地址选择器:以省份,城市,地区三级进行选择,数据来自本地plist文件.有12个热门城市供快速选择,选择错误可以回选.
选择地区时进行将数据回调到上一控制器,点击页面空白区域退出controller.
controller消失时:背景渐变消失,地址选择器向下退出.
实现思路:
本质上来说这是一个复杂版的日期选择器,有关弹出动画完全可以拿过来就用.
所以主要复杂的点就是这个自定制的地址选择器.
具体实现是写一个view其中包含tableView.给view三种type.来决定它当前的状态.然后根据type的改变来修改他的样式和数据展示,以及cell被点击时执行方法.
实现方式:
1.找到数据源,声明model将数据转成对象.
2.实现地址选择器的样式,数据展示.
3.实现我们需要的转场视图动画.
4.将地址选择器加入一个ViewController,并修改其转场动画代理,使其使用自定制转场动画.
5.实现地址选择器的功能,以及交互优化.
1.找到数据源,声明model将数据转成对象.
数据来自网络,一个plist文件.将其转换成model进行保存.
struct EWCountryModel {
var countryDictionary: [String:EWProvincesModel] = [:]
var provincesArray: [String] = []
init(dic: [String:[String:[String]]]) {
for (key,value) in dic {
let model = EWProvincesModel(dic: value)
countryDictionary[key] = model
provincesArray.append(key)
}
}
}
struct EWProvincesModel {
var provincesDictionary: [String: EWCityModel] = [:]
var cityArray: [String] = []
init(dic:[String: [String]]) {
for (key,value) in dic {
let model = EWCityModel(Arr: value)
provincesDictionary[key] = model
cityArray.append(key)
}
}
}
struct EWCityModel {
var areaArray: [String] = []
init(Arr: [String]) {
for str in Arr {
areaArray.append(str)
}
}
}
/// 从area.plist获取全部地区数据
private func initLocationData() {
guard let dic = NSDictionary(contentsOfFile: Bundle.main.path(forResource: "area", ofType: "plist") ?? "") as? [String:[String:[String]]] else {
return
}
locationModel = EWCountryModel(dic: dic)
dataArray = locationModel?.provincesArray
}
2.实现地址选择器的样式,数据展示.
private func buildTitleScrollView() {
if titleSV != nil {
titleSV.removeFromSuperview()
}
buttonArr = []
titleSV = UIScrollView(frame: CGRect(x: 0, y: 72, width: UIScreen.main.bounds.width, height: 44))
self.underLine = UIView(frame: CGRect(x: 0, y: 40, width: 30, height: 2))
self.underLine.backgroundColor = selectColor
for i in 0..<3 {
let button = UIButton(frame: CGRect(x: 24 + CGFloat(i) * (UIScreen.main.bounds.width - 47) / 3, y: 0, width: UIScreen.main.bounds.width / 3, height: 44))
button.tag = Int(i)
if i == 1 {
button.isSelected = true
underLine.center.x = button.center.x
}
button.setTitle("请选择", for: .normal)
button.setTitleColor(UIColor(red: 51/255, green: 51/255, blue: 51/255, alpha: 1), for: .normal)
button.setTitleColor(selectColor, for: .selected)
button.titleLabel?.font = UIFont.systemFont(ofSize: 12)
button.titleLabel?.adjustsFontSizeToFitWidth = true
button.addTarget(self, action: #selector(onClickTitlebutton(sender:)), for: .touchUpInside)
buttonArr.append(button)
titleSV.addSubview(button)
}
titleSV.showsVerticalScrollIndicator = false
titleSV.addSubview(self.underLine)
titleSV.contentSize = CGSize(width: UIScreen.main.bounds.width, height: 44)
titleSV.isHidden = true
self.addSubview(titleSV)
}
private func drawTableView() {
self.addSubview(tableView)
tableView.delegate = self
tableView.dataSource = self
tableView.separatorStyle = .none
tableView.tableHeaderView = tableViewHeaderView
tableView.showsVerticalScrollIndicator = false
tableView.register(EWAddressPickViewTableViewCell.self, forCellReuseIdentifier: EWAddressPickViewTableViewCell.identifier)
tableView.register(EWAddressPickViewFirstTableViewCell.self, forCellReuseIdentifier: EWAddressPickViewFirstTableViewCell.identifier)
}
3.实现我们需要的转场视图动画.
//EWAddressPickerViewController的推出和取消动画
class EWAddressPickerPresentAnimated: NSObject,UIViewControllerAnimatedTransitioning {
var type: EWAddressPickerPresentAnimateType = .present
init(type: EWAddressPickerPresentAnimateType) {
self.type = type
}
/// 动画时间
func transitionDuration(using transitionContext: UIViewControllerContextTransitioning?) -> TimeInterval {
return 0.3
}
/// 动画效果
func animateTransition(using transitionContext: UIViewControllerContextTransitioning) {
switch type {
case .present:
guard let toVC: EWAddressViewController = transitionContext.viewController(forKey: .to) as? EWAddressViewController else {
return
}
let toView = toVC.view
let containerView = transitionContext.containerView
containerView.addSubview(toView!)
toVC.containV.transform = CGAffineTransform(translationX: 0, y: (toVC.containV.frame.height))
UIView.animate(withDuration: 0.25, animations: {
/// 背景变色
toVC.backgroundView.alpha = 1.0
/// addresspicker向上推出
toVC.containV.transform = CGAffineTransform(translationX: 0, y: -10)
}) { (_) in
UIView.animate(withDuration: 0.2, animations: {
/// transform初始化
toVC.containV.transform = CGAffineTransform.identity
}, completion: { (_) in
transitionContext.completeTransition(true)
})
}
case .dismiss:
guard let toVC: EWAddressViewController = transitionContext.viewController(forKey: .from) as? EWAddressViewController else {
return
}
UIView.animate(withDuration: 0.25, animations: {
toVC.backgroundView.alpha = 0.0
/// addresspicker向下推回
toVC.containV.transform = CGAffineTransform(translationX: 0, y: (toVC.containV.frame.height))
}) { (_) in
transitionContext.completeTransition(true)
}
}
}
}
4.将地址选择器加入一个ViewController,并修改其转场动画代理,使其使用自定制转场动画.
public lazy var containV: EWAddressPickView = {
let view = EWAddressPickView(frame: CGRect(x: 0, y: UIScreen.main.bounds.height - 550, width: UIScreen.main.bounds.width, height: 550),selectColor: selectColor)
view.backOnClickCancel = {
self.onClickCancel()
}
/// 成功选择后将数据回调,并推出视图
view.backLocationString = { (address,province,city,area) in
if self.backLocationStringController != nil {
self.backLocationStringController!(address,province,city,area)
self.onClickCancel()
}
}
return view
}()
// MARK: - 转场动画delegate
extension EWAddressViewController:UIViewControllerTransitioningDelegate {
/// 推入动画
func animationController(forPresented presented: UIViewController, presenting: UIViewController, source: UIViewController) -> UIViewControllerAnimatedTransitioning? {
let animated = EWAddressPickerPresentAnimated(type: .present)
return animated
}
/// 推出动画
func animationController(forDismissed dismissed: UIViewController) -> UIViewControllerAnimatedTransitioning? {
let animated = EWAddressPickerPresentAnimated(type: .dismiss)
return animated
}
}
5.实现地址选择器的功能,以及交互优化.
主要复杂的部分,只能展示其中一部分代码,具体实现还是要在demo中看.
private var tableViewType: EWLocationPickViewTableViewType = .provinces {
didSet {
switch tableViewType {
case .provinces:
/// 选择省份时,有上面的热门城市view.没有滚动选择type的titleScrollView.没有已选择label.
self.tableView.tableHeaderView = tableViewHeaderView
self.tableView.frame = CGRect(x: 0, y: 42, width: UIScreen.main.bounds.width, height: 458)
self.titleSV.isHidden = true
self.leftLabel.isHidden = true
/// 将所有选中数据清空
self.provincesModel = nil
self.selectedProvince = ""
self.selectedCity = ""
self.selectedArea = ""
self.cityModel = nil
// 将titleSV中所有button的title重置
// 并将第一个button设置为选中状态,已保证选择城市后button下的横线有滚动效果.
for button in buttonArr {
button.setTitle("请选择", for: .normal)
button.isSelected = false
if button.tag == 0 {
button.isSelected = true
}
}
self.underLine.center = CGPoint(x: self.buttonArr[1].center.x, y: self.underLine.center.y)
self.dataArray = locationModel?.provincesArray
self.tableView.reloadData()
case .city:
/// 选择城市时没有热门城市view,并将titleSV显示出来
self.tableView.tableHeaderView = UIView()
self.tableView.frame = CGRect(x: 0, y: 136, width: UIScreen.main.bounds.width, height: 367)
self.titleSV.isHidden = false
self.leftLabel.isHidden = false
/// 将省份选择保留,将城市与地区数据清空
self.selectedCity = ""
self.selectedArea = ""
self.cityModel = nil
/// 通过修改titleSV中button的选中状态来修改它的颜色
for button in buttonArr {
button.isSelected = false
if button.tag != 0 {
button.setTitle("请选择", for: .normal)
}
if button.tag == 1 {
button.isSelected = true
}
}
/// 滚动titleSV中button下滚动的Line
UIView.animate(withDuration: 0.3, animations: {() -> Void in
self.underLine.center = CGPoint(x: self.buttonArr[1].center.x, y: self.underLine.center.y)
})
self.dataArray = provincesModel?.cityArray
self.tableView.reloadData()
case .area:
/// 选择地区时没有上方热门城市View,有titleSV
self.tableView.tableHeaderView = UIView()
self.tableView.frame = CGRect(x: 0, y: 136, width: UIScreen.main.bounds.width, height: 367)
self.titleSV.isHidden = false
self.leftLabel.isHidden = false
/// 通过修改titleSV中button的选中状态来修改它的颜色
for button in buttonArr {
button.isSelected = false
if button.tag == 2 {
button.isSelected = true
}
}
/// 滚动titleSV中button下滚动的Line
UIView.animate(withDuration: 0.3, animations: {() -> Void in
self.underLine.center = CGPoint(x: self.buttonArr[2].center.x, y: self.underLine.center.y)
})
self.dataArray = cityModel?.areaArray
self.tableView.reloadData()
}
}
}
使用方法:
将EWAddressPicker文件夹拖入项目,调用时:
let addressPicker = EWAddressViewController()
/*** 可使用这种init方法自定制选中颜色,不填写selectColor默认颜色为UIColor(red: 79/255, green: 176/255, blue: 255/255, alpha: 1),蓝色
let addressPicker = EWAddressViewController(selectColor: UIColor.yellow)
*/
// 返回选择数据,地址,省,市,区
addressPicker.backLocationStringController = { (address,province,city,area) in
self.label.text = address
}
self.present(addressPicker, animated: true, completion: nil)
demo地址:AddressPicker.求star.
OC版本:OC.地址选择器.
有问题欢迎探讨.
于2019.02.21进行代码格式优化以及更新语言版本至swift4.2
