typealias PopPickerViewCallBackClosure = (_ resultStr:NSString?) -> ()
class PopPickerView : UIView
{
var dismissCallBack = {}
var rowAndComponentCallBack:PopPickerViewCallBackClosure? fileprivate var blockContent : NSString? var titleLabel : UILabel?
var divideLine : UIView?
var confirmButton : UIButton?
var cancelButton : UIButton?
var overlayView : UIControl?
var keyWindow : UIWindow? override init(frame: CGRect) {
super.init(frame: frame)
self.backgroundColor = UIColor.white; if (keyWindow == nil) {
self.keyWindow = UIApplication.shared.keyWindow
} overlayView = UIControl.init(frame: UIScreen.main.bounds)
overlayView?.backgroundColor = UIColor.init(red: , green: , blue: , alpha: 0.5)
overlayView?.addTarget(self, action: #selector(hide), for: .touchUpInside)
overlayView?.alpha = let toolView:UIView = UIView.init(frame: CGRect.init(x: , y: , width: Int(self.bounds.size.width), height: Int()))
toolView.backgroundColor = .white
addSubview(toolView) cancelButton = UIButton.init(frame: CGRect.init(x: , y: , width: , height: toolView.bounds.size.height))
cancelButton?.setTitle("取消", for: .normal)
cancelButton?.setTitleColor(newColor(, , ), for: .normal)
cancelButton?.titleLabel?.font = UIFont.systemFont(ofSize: )
cancelButton?.contentHorizontalAlignment = .left
cancelButton?.addTarget(self, action: #selector(cancelAction), for: .touchUpInside)
toolView.addSubview(cancelButton!) confirmButton = UIButton.init(frame: CGRect.init(x: (toolView.bounds.size.width - - ), y: , width: , height: toolView.bounds.size.height))
confirmButton?.setTitle("确定", for: .normal)
confirmButton?.setTitleColor(newColor(, , ), for: .normal)
confirmButton?.titleLabel?.font = UIFont.systemFont(ofSize: )
confirmButton?.contentHorizontalAlignment = .left
confirmButton?.addTarget(self, action: #selector(confirmAction), for: .touchUpInside)
toolView.addSubview(confirmButton!) titleLabel = UILabel.init(frame: CGRect(x: CGFloat(Int(self.bounds.size.width)/ - ), y: , width: , height: toolView.bounds.size.height))
titleLabel?.text = "汽车排量"
titleLabel?.textColor = newColor(, , )
titleLabel?.font = UIFont.systemFont(ofSize: )
titleLabel?.textAlignment = .center
toolView.addSubview(titleLabel!) divideLine = UIView.init(frame: CGRect(x: , y: (confirmButton?.superview?.frame.maxY)!, width: toolView.bounds.size.width, height: ))
divideLine?.backgroundColor = colorWithHexString("0xe5e5e5")
toolView.addSubview(divideLine!)
} convenience init(frame: CGRect,dataSource:NSArray,title:String) {
self.init(frame: frame)
titleLabel?.text = title
if (dataSource.count != ) { let picker = PickerViewBuilder.init(frame: CGRect.init(x: , y: ((confirmButton?.superview?.frame.maxY)! + ), width: UIScreen.main.bounds.size.width - CGFloat(), height: CGFloat()),dataSource:dataSource,contentCallBack:{ [weak self] (resultStr) in
self?.blockContent = resultStr
})
picker.rowAndComponentCallBack = {[weak self](resultStr) in
self?.blockContent = resultStr
} self.addSubview(picker)
}else{
assert(dataSource.count != , "dataSource is not allowed to be nil")
}
} required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
} func show(){
keyWindow?.addSubview(overlayView!)
keyWindow?.addSubview(self)
UIView.animate(withDuration: 0.25, animations: {
self.overlayView?.alpha = 1.0
var frame = self.frame
frame.origin.y = UIScreen.main.bounds.size.height - self.bounds.size.height
self.frame = frame
}) { (isFinished) in
}
} @objc func hide() {
self.dismissCallBack()
UIView.animate(withDuration: 0.25, animations: {
self.overlayView?.alpha =
var frame = self.frame
frame.origin.y = UIScreen.main.bounds.size.height
self.frame = frame
}) { (isFinished) in
self.overlayView?.removeFromSuperview()
self.removeFromSuperview()
}
} @objc func cancelAction() {
hide()
} @objc func confirmAction() {
if blockContent == "" {
showAlert(withTitle: "提示", message: "未选择任何一项！")
}else{
self.rowAndComponentCallBack!(blockContent)
}
hide()
} @objc private func showAlert(withTitle title: String?, message: String?) {
let alertVc = UIAlertController.init(title: title, message: message, preferredStyle: UIAlertController.Style.alert)
alertVc.addAction(UIAlertAction.init(title: "我知道了", style: UIAlertAction.Style.cancel, handler: nil))
UIApplication.shared.keyWindow?.rootViewController?.present(alertVc, animated: true, completion: nil)
}
} class PickerViewBuilder : UIPickerView, UIPickerViewDelegate,UIPickerViewDataSource {
fileprivate var rowAndComponentCallBack:PopPickerViewCallBackClosure?//选择内容回调
lazy var currentSelectRow : NSInteger =
lazy var dataArr = NSMutableArray() override init(frame: CGRect) {
super.init(frame: frame)
} convenience init(frame:CGRect,dataSource:NSArray,contentCallBack:PopPickerViewCallBackClosure?) {
self.init(frame: frame)
self.backgroundColor = UIColor.white
self.dataArr = NSMutableArray.init(array: dataSource)
self.selectedRow(inComponent: )
self.delegate = self
self.dataSource = self
} required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
} func numberOfComponents(in pickerView: UIPickerView) -> Int {
return
} func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
return dataArr.count
} func pickerView(_ pickerView: UIPickerView, viewForRow row: Int, forComponent component: Int, reusing view: UIView?) -> UIView {
//设置分割线
for view in pickerView.subviews {
if view.frame.size.height <= {
view.isHidden = false
view.frame = CGRect(x: , y: view.frame.origin.y, width: UIScreen.main.bounds.size.width, height: )
view.backgroundColor = colorWithHexString("0xe5e5e5")
}
} var pickerLabel = view as? UILabel
if pickerLabel == nil {
pickerLabel = UILabel()
pickerLabel?.textAlignment = .center
if currentSelectRow == row {
pickerLabel?.font = UIFont.systemFont(ofSize: )
pickerLabel?.textColor = newColor(, , )
}else{
pickerLabel?.font = UIFont.systemFont(ofSize: )
pickerLabel?.textColor = newColor(, , )
} }
pickerLabel?.text = dataArr[row] as? String return pickerLabel!
} func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
return dataArr[row] as? String
} func pickerView(_ pickerView: UIPickerView, rowHeightForComponent component: Int) -> CGFloat {
return
} func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
currentSelectRow = row
rowAndComponentCallBack!(dataArr[currentSelectRow] as? NSString)
self.reloadAllComponents()
}
}
使用：
let pickerView = PopPickerView.init(frame: CGRect(x: , y: UIScreen.main.bounds.size.height, width: UIScreen.main.bounds.size.width, height: ), dataSource: selectParams[indexPath.row - ] as NSArray,title:titleArr[indexPath.row])
pickerView.rowAndComponentCallBack = {(resultStr) in
print(resultStr as Any)
self.currentSelectCell?.rightSelectLabel.text = resultStr! as String
}
pickerView.show()
效果图：
仅限于Component内容，想要多行，可自行扩展。
自定义弹窗、可修改分割线颜色、修改字体大小、修改字体颜色。