自定义UITabBarController Swift

最新推荐文章于 2020-11-04 10:37:09 发布

BubuxingBala

最新推荐文章于 2020-11-04 10:37:09 发布

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分类专栏： Swift

本文链接：https://blog.youkuaiyun.com/weixin_42012181/article/details/88535689

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本文介绍如何在SwiftUI中自定义TabBar的样式和功能，包括设置背景颜色、透明度，以及为不同视图控制器配置图标和选中状态图片。通过示例代码展示了如何实现这一过程。

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import UIKit

class TabBarViewController: UITabBarController {

    override func viewDidLoad() {
        super.viewDidLoad()

        self.tabBar.backgroundColor = UIColor.white
        self.tabBar.isOpaque = false
        setUpTabBar(img: "首页", selImg: "首页Sel", title: "预警", viewController: MainViewController())
        setUpTabBar(img: "我的", selImg: "我的Sel", title: "我的", viewController: MineViewController())
    }
    
    func setUpTabBar(img:String, selImg:String, title:String, viewController:BasicViewController) {
        let nav = UINavigationController(rootViewController: viewController)
        nav.isNavigationBarHidden = true
        nav.tabBarItem.image = UIImage(named: img)?.withRenderingMode(.alwaysOriginal)
        nav.tabBarItem.selectedImage = UIImage(named: selImg)?.withRenderingMode(.alwaysOriginal)
        nav.title = title
        nav.tabBarItem.setTitleTextAttributes([.foregroundColor: UIColor(red: 165.0/255.0, green: 165.0/255.0, blue: 165.0/255.0, alpha: 1), .font: UIFont.systemFont(ofSize: 12)], for: UIControlState.normal)
        nav.tabBarItem.setTitleTextAttributes([.foregroundColor: ButtonColor, .font: UIFont.systemFont(ofSize: 12)], for: UIControlState.selected)
        self.addChildViewController(nav)
    }
}

使用：

let appDelegate = (UIApplication.shared.delegate) as! AppDelegate
appDelegate.window!.rootViewController = TabBarViewController()