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1.纯代码搭建一个结构为>Root -> TabBar -> Navigation -> ViewController的小项目
下面看一下appdelegate.swift里面的代码
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
self.window = UIWindow(frame:UIScreen.main.bounds)
self.window?.makeKeyAndVisible()
let rootViewController = MianTabbarController()
self.window?.rootViewController = rootViewController
return true
}
来到MianTabbarController.swift里面，先创建两个空的控制器HomeViewController.swift和SettingViewController.swift,分别设置好颜色
super.viewDidLoad()
// 创建ViewControllers
self.creatViewController()
}
func creatViewController(){
let home = HomeViewController()
let homeNvc = UINavigationController(rootViewController:home)
home.title = "HomeViewController"
let setting = SeetingViewController()
let settingNvc = UINavigationController(rootViewController:setting)
setting.title = "SettingViewController"
let tabArray = [homeNvc,settingNvc]
self.viewControllers = tabArray
//底部工具栏背景颜色
self.tabBar.barTintColor=UIColor.gray;
//.设置底部工具栏文字颜色（默认状态和选中状态）(选中状态为蓝色)
UITabBarItem.appearance().setTitleTextAttributes(NSDictionary(object:UIColor.white, forKey:NSForegroundColorAttributeName as NSCopying) as? [String : AnyObject], for:UIControlState.normal);
UITabBarItem.appearance().setTitleTextAttributes(NSDictionary(object:UIColor.blue, forKey:NSForegroundColorAttributeName as NSCopying) as? [String : AnyObject], for:UIControlState.selected)
}
效果如图1.1
图1.1
二，结构为Navgation->Root -> TabBar -> Navigation -> ViewController，这里是在appdelegate.swift里面创建了一个navigation用于在收到通知的时候点击远程通知处理push（当然不在这里创建navigation也是可以push的），这种结构下只需要隐藏appdelegate.swift里面的navigation即可，代码如下
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
self.window = UIWindow(frame:UIScreen.main.bounds)
self.window?.makeKeyAndVisible()
let main = MianTabbarController()
let nvc = UINavigationController(rootViewController:main)
nvc.navigationBar.isHidden = true
self.window?.rootViewController = nvc
return true
}
效果如图1.1
三.结构为Root -> TabBar -> ViewController，代码如下
appdelegate.swift
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
self.window = UIWindow(frame:UIScreen.main.bounds)
self.window?.makeKeyAndVisible()
let main = MianTabbarController()
self.window?.rootViewController = main
return true
}
MianTabbarController.swift
override func viewDidLoad() {
super.viewDidLoad()
// 创建ViewControllers
self.creatViewController()
}
func creatViewController(){
let home = HomeViewController()
let setting = SeetingViewController()
let tabArray = [home,setting]
self.viewControllers = tabArray
//底部工具栏背景颜色
self.tabBar.barTintColor=UIColor.gray;
//.设置底部工具栏文字颜色（默认状态和选中状态）(选中状态为蓝色)
UITabBarItem.appearance().setTitleTextAttributes(NSDictionary(object:UIColor.white, forKey:NSForegroundColorAttributeName as NSCopying) as? [String : AnyObject], for:UIControlState.normal);
UITabBarItem.appearance().setTitleTextAttributes(NSDictionary(object:UIColor.blue, forKey:NSForegroundColorAttributeName as NSCopying) as? [String : AnyObject], for:UIControlState.selected)
}
效果如图1.2
图1.2
四 导航栏的一些基本设置
1. 设置导航栏的背景颜色 如图1.3
1.3 设置导航栏背景颜色
//设置导航栏背景颜色
let bgColor = UIColor(red: 100/255, green:200/225, blue: 60/255, alpha: 1)
self.navigationController?.navigationBar.barTintColor = bgColor
2. 设置导航栏文字的颜色为白色， 如图1.3 ，代码如下
// 设置导航栏文字的颜色为白色
self.navigationController?.navigationBar.titleTextAttributes =
[NSForegroundColorAttributeName: UIColor.white]
3. 设置导航栏返回按钮的颜色，如图1.4，代码如下
//修改导航栏按钮颜色
self.navigationController?.navigationBar.tintColor = UIColor.white
1.4 设置导航栏返回按钮的颜色
4. 设置导航栏背景图片，代码如下
// 设置导航栏的背景图片
self.navigationController?.navigationBar
.setBackgroundImage(UIImage(named: "bg5"), for: .default)
5. 设置tabbar 的背景颜色，如图1.5，代码如下
//底部工具栏背景颜色
self.tabBar.barTintColor=UIColor.gray;
1.5 设置tabbar的背景颜色，灰色
5. 设置tabbar文字的颜色，如图1.5 ，代码如下
//.设置底部工具栏文字颜色（默认状态和选中状态）(选中状态为蓝色)
UITabBarItem.appearance().setTitleTextAttributes(NSDictionary(object:UIColor.white, forKey:NSForegroundColorAttributeName as NSCopying) as? [String : AnyObject], for:UIControlState.normal);
UITabBarItem.appearance().setTitleTextAttributes(NSDictionary(object:UIColor.blue, forKey:NSForegroundColorAttributeName as NSCopying) as? [String : AnyObject], for:UIControlState.selected)
框架结构以及tabbar和navigationbar就设置到这里，下面创建按钮push到下一页面，代码如下
// 创建push按钮
func creatPushButton(){
let pushBtn:UIButton = UIButton(frame:CGRect(x:0 , y:66 ,width:150 ,height:100 ))
pushBtn.backgroundColor = UIColor.white
pushBtn.setTitle("点击push下一页", for: UIControlState.normal)
pushBtn.setTitleColor(UIColor.black, for: UIControlState.normal)
self.view .addSubview(pushBtn)
pushBtn.addTarget(self, action:#selector(pushMine), for: UIControlEvents.touchUpInside)
}
func pushMine() {
let mine = MineViewController()
self.navigationController?.pushViewController(mine, animated: true)
//present方式
// let mine = MineViewController()
//self.present(mine, animated: true, completion: nil)
}
