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// 1.设置导航栏标题属性：设置标题颜色
self.navigationController?.navigationBar.titleTextAttributes = [NSAttributedStringKey.foregroundColor:UIColor.red]
// 2.设置导航栏前景色：设置item指示色
self.navigationController?.navigationBar.tintColor = UIColor.purple
// 3.设置导航栏半透明
self.navigationController?.navigationBar.isTranslucent = true
// 4.设置导航栏背景图片
self.navigationController?.navigationBar.setBackgroundImage(UIImage(), for: UIBarMetrics.default)//设置导航栏透明，只有当 self.navigationController?.navigationBar.isTranslucent = true时才有效果
self.navigationController?.navigationBar.setBackgroundImage(UIImage.init(named: "bannerhomeOne"), for: UIBarMetrics.default)//设置有图片背景的导航
// 5.设置导航栏阴影图片----导航栏底部的那一条黑线
self.navigationController?.navigationBar.shadowImage = UIImage()
//6.设置导航栏的背景色----如果设置了背景图片，这个就不起作用了
self.navigationController?.navigationBar.barTintColor=UIColor.init(red:39.0/255, green:131.0/255, blue:207.0/255, alpha:1)
导航上右侧按钮：
func addrightbtn(){
//navitem search 搜索按钮
let buttonSearch = UIButton.init(frame: CGRect.init(x: 0, y: 0, width: 20, height: 20))
buttonSearch.setTitle("设置", for: UIControl.State.normal)
buttonSearch.addTarget(self, action: #selector(settingbtn), for: UIControl.Event.touchUpInside)
let barButtonSearch = UIBarButtonItem(customView: buttonSearch)
//调节按钮位置
let spacer = UIBarButtonItem.init(barButtonSystemItem: UIBarButtonItem.SystemItem.fixedSpace, target: nil, action: nil)
spacer.width = -5;
//设置按钮
self.navigationItem.rightBarButtonItems = [spacer, barButtonSearch]
}
@objc func settingbtn(){
print("设置")
let mysettingvc = LYBMysettingvc.init()
navigationController?.pushViewController(mysettingvc, animated: true)
}
基础导航控制器NAV：
import UIKitclass LYBBaseNav: UINavigationController { override func viewDidLoad() { super.viewDidLoad() } func configBackBtn() -> [UIBarButtonItem] { // 返回按钮 let backButton = UIButton(type: .custom) // 给按钮设置返回箭头图片 backButton.setImage(UIImage(named: "fanhui"), for: .normal) // 设置frame backButton.frame = CGRect(x: 200, y: 13, width: 18, height: 18) backButton.addTarget(self, action: #selector(back), for: .touchUpInside) // 自定义导航栏的UIBarButtonItem类型的按钮 let backView = UIBarButtonItem(customView: backButton) // 重要方法，用来调整自定义返回view距离左边的距离 let barButtonItem = UIBarButtonItem(barButtonSystemItem: .fixedSpace, target: nil, action: nil) barButtonItem.width = -5 // 返回按钮设置成功 return [barButtonItem, backView] } @objc func back(){ self.popViewController(animated: true) } //拦截跳转事件,每一次push都会调用 override func pushViewController(_ viewController: UIViewController, animated: Bool) { if self.children.count > 0 { viewController.hidesBottomBarWhenPushed = true //添加返回按钮方式一 viewController.navigationItem.leftBarButtonItems=self.configBackBtn() } super.pushViewController(viewController, animated: animated) } //返回上一级界面之前的设置操作 override func popViewController(animated: Bool) -> UIViewController? { print("返回"); //每一次对viewController进行push的时候，会把viewController放入一个栈中 //每一次对viewController进行pop的时候，会把viewController从栈中移除 if self.children.count == 2 { //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 //那么要对tabbar进行显示 let controller:UIViewController = self.children[0] controller.hidesBottomBarWhenPushed = false } else { //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 //把tabbar进行隐藏 let count = self.children.count-2 let controller = self.children[count] controller.hidesBottomBarWhenPushed = true } return super.popViewController(animated: false) }} 基础控制器VC：
import UIKitclass LYBBaseVC: UIViewController { override func viewDidLoad() { super.viewDidLoad()// String.ReachabilitymonitorNet()// String.ReachabilityOncemonitorNet() self.edgesForExtendedLayout = UIRectEdge.init(rawValue: 0) self.view.backgroundColor=UIColor.white //修改导航栏标题文字颜色// self.navigationController?.navigationBar.titleTextAttributes =// [.foregroundColor: UIColor.red,.font:UIFont.systemFont(ofSize: 12)] } override func viewWillAppear(_ animated: Bool) { super.viewWillAppear(animated) //设置导航栏背景透明//self.navigationController?.navigationBar.setBackgroundImage(UIImage(),for: .default)//self.navigationController?.navigationBar.shadowImage = UIImage() } //视图将要消失 override func viewWillDisappear(_ animated: Bool) { super.viewWillDisappear(animated) //重置导航栏背景// self.navigationController?.navigationBar.setBackgroundImage(nil, for: .default)// self.navigationController?.navigationBar.shadowImage = nil } }
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