74 lines
3.9 KiB
Swift
74 lines
3.9 KiB
Swift
//
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// MPNavigationController.swift
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// MusicPlayer
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//
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// Created by Mr.Zhou on 2024/3/27.
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//
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import UIKit
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///通用导航栏
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class MPNavigationController: UINavigationController {
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override init(rootViewController: UIViewController) {
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super.init(rootViewController: rootViewController)
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if #available(iOS 15, *) {
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let navBar = UINavigationBarAppearance()
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navBar.titleTextAttributes = [NSAttributedString.Key.foregroundColor:UIColor.white, NSAttributedString.Key.font : UIFont.systemFont(ofSize: 20, weight: .heavy)]
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navBar.backgroundEffect = nil
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navBar.shadowColor = nil
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//消除导航栏分割线
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navBar.configureWithTransparentBackground()
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navBar.backgroundColor = .clear
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rootViewController.navigationController?.navigationBar.scrollEdgeAppearance = navBar
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rootViewController.navigationController?.navigationBar.standardAppearance = navBar
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}
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rootViewController.navigationController?.navigationBar.isTranslucent = false
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rootViewController.navigationController?.navigationBar.shadowImage = UIImage()
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//自定义导航栏颜色
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rootViewController.navigationController?.navigationBar.barTintColor = .clear
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//设置导航栏标题颜色
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rootViewController.navigationController?.navigationBar.titleTextAttributes = [NSAttributedString.Key.foregroundColor:UIColor.white, NSAttributedString.Key.font : UIFont.systemFont(ofSize: 20, weight: .heavy)]
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rootViewController.navigationController?.navigationBar.tintColor = .white
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let item = UIBarButtonItem(title: "", style: .plain, target: self, action: nil)
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item.tintColor = .white
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rootViewController.navigationItem.backBarButtonItem = item
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}
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required init?(coder aDecoder: NSCoder) {
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fatalError("init(coder:) has not been implemented")
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}
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override init(nibName nibNameorNil:String?,bundle nibBundleOrNil:Bundle?){
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super.init(nibName:nibNameorNil,bundle:nibBundleOrNil)
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}
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//重写pushViewController
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//每一次push都会执行这个方法，push之前设置viewController的hidesBottomBarWhenPushed
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override func pushViewController(_ viewController: UIViewController, animated: Bool) {
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viewController.hidesBottomBarWhenPushed = true
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NotificationCenter.notificationKey.post(notificationName: .hidden_show)
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super.pushViewController(viewController, animated: true)
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viewController.hidesBottomBarWhenPushed = false
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}
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//重写popViewController
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//每一次对viewController进行push的时候，会把viewController放入一个栈中
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//每一次对viewController进行pop的时候，会把viewController从栈中移除
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override func popViewController(animated: Bool) -> UIViewController? {
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guard self.children.count != 1 else {
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//特殊情况，当用户连续触发pop事件时进行容错处理
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return super.popViewController(animated: true)
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}
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guard self.children.count == 2 else {
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//如果viewController栈中存在的ViewController的个数超过两个，对要返回到的上一级的界面设置hidesBottomBarWhenPushed = true
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//把tabbar进行隐藏
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let count = self.children.count-2
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let controller = self.children[count]
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controller.hidesBottomBarWhenPushed = true
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NotificationCenter.notificationKey.post(notificationName: .hidden_show)
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return super.popViewController(animated: true)
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}
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//如果viewController栈中存在的ViewController的个数为两个，再返回上一级界面就是根界面了
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//那么要对tabbar进行显示
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let controller:UIViewController = self.children[0]
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controller.hidesBottomBarWhenPushed = false
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NotificationCenter.notificationKey.post(notificationName: .display_show)
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return super.popViewController(animated: true)
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}
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}
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