Swift - UITabBarViewController

最新推荐文章于 2022-12-08 17:47:10 发布

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最新推荐文章于 2022-12-08 17:47:10 发布

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本文链接：https://blog.youkuaiyun.com/weixin_43704791/article/details/86387988

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本文介绍了两种在Swift中使用UITabBarViewController的方法。方法一是将其设置为应用程序的根视图控制器，具体操作包括在AppDelegate的didFinishLaunchingWithOptions方法中创建MainViewController和SettingViewController。方法二是通过模态化弹出，详细步骤包括在ViewController中创建TabViewController，并同样配置MainViewController和SettingViewController。

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方法一(将UITabBarController设为根视图)
在AppDelegate中didFinishlaunchingWithOptions方法中:

let first = MainViewController()
let secton = SettingViewController()

let tabViewController = UITabBarController()
tabViewController.viewControllers = [first,second]
self.window?.rootViewController = tabViewController

创建MainViewCOntroller:

import UIKit
class MainViewController: UIViewController {
    override func viewDidLoad() {
        super.viewDidLoad()
        self.view.backgroundColor = UIColor.orange
        self.title = "课堂"
        self.tabBarItem.image = UIImage(named: "Image1")
        self.tabBarItem.badgeValue = "!"
    }
}

创建SettingViewController：

import UIKit
class SettingViewController: UIViewController {
    override func viewDidLoad() {
        super.viewDidLoad()
        self.view.backgroundColor = UIColor.orange
        self.title = "设置"
        self.tabBarItem.image = UIImage(named: "Image2")
    }
}

方法二（以模态化弹出）：
ViewController:

import UIKit

class ViewController:UIViewController{

    override func viewDidLoad() {
        super.viewDidLoad()
        let button = UIButton(type: .system)
        button.frame = CGRect(x: 100, y: 150, width: 100, height: 30)
        button.setTitle("开始游戏", for: .normal)
        button.addTarget(self, action: #selector(tapped), for: .touchUpInside)
        self.view.addSubview(button)
    }
    @objc func tapped(){
        self.present(TabBarViewController(), animated: true, completion: nil)
    }
}

创建TabViewController:

import UIKit
class TabBarViewController: UITabBarController {
    override func viewDidLoad() {
        super.viewDidLoad()
        let MainView = MainViewController()
        let SettingView = SettingViewController()
        
        let main = UINavigationController(rootViewController: MainView)
        
        let setting = UINavigationController(rootViewController: SettingView)
        
        self.viewControllers = [main,setting]
        self.selectedIndex = 0
    }
}

创建MainViewController,SettingViewController同上。