思路 parentController 加 childController 的 view
直接上源码
// PPBottomupController.swift
import UIKit
/// 从下往上推出
class PPBottomupController: UIViewController {
/// 子类 可以重写
public var contentHeight:Int = 370
private(set) var isShowed: Bool = false
// var presentingController:UIViewController?
lazy var bgTouchView: UIView = {
let view = UIView()
view.backgroundColor = UIColor.colorWithHexString("#000000",alpha: 0.5)
return view
}()
/// 从下往上推出的view 需要加在 contentView 上
lazy var contentView: UIView = {
let view = UIView(frame:
CGRect(x: 0, y: kScreenHeight,
width: kScreenWidth, height: CGFloat(self.contentHeight)))
return view
}()
override func viewDidLoad() {
super.viewDidLoad()
self.addSubviews()
let tapGesutre = UITapGestureRecognizer {[weak self] _ in
guard let self = self else { return }
self.hide()
}
self.bgTouchView.addGestureRecognizer(tapGesutre)
}
private func addSubviews() {
self.view.addSubview(bgTouchView)
bgTouchView.snp.makeConstraints { make in
make.edges.equalToSuperview()
}
self.view.addSubview(self.contentView)
self.contentView.snp.makeConstraints { make in
make.leading.trailing.bottom.equalToSuperview()
make.height.equalTo(self.contentHeight)
}
}
func show(in presentingController: UIViewController, completion: (() -> Void)? = nil) {
self.isShowed = true
guard let presentingView = presentingController.view else {
return
}
// self.presentingController = presentingController
if presentingView.subviews.contains(self.view){
presentingView.bringSubviewToFront(self.view)
}else {
presentingController.addChild(self)
presentingView.addSubview(self.view)
}
self.view.isHidden = false
UIView.animate(withDuration: 0.3, delay: 0, options: .curveEaseOut, animations: {
self.contentView.frame.origin.y = kScreenHeight - CGFloat(self.contentHeight)
self.bgTouchView.alpha = 1
}) { (success) in
completion?()
}
}
func hide(completion: ((Bool) -> Void)? = nil){
self.isShowed = false
UIView.animate(withDuration: 0.3, delay: 0, options: .curveEaseOut, animations: {
self.contentView.frame.origin.y = kScreenHeight
self.bgTouchView.alpha = 0
}) { (success) in
self.view.isHidden = true
completion?(success)
}
}
func dismiss() {
if self.view.superview == nil { return }
self.isShowed = false
self.hide {[weak self] success in
guard let self = self else {
return
}
self.view.removeFromSuperview()
}
self.removeFromParent()
}
}
