UITabbar 颜色 color

if #available(iOS 15, *) {
    let tabBarAppearance = UITabBarAppearance()
    tabBarAppearance.backgroundColor = .white
    tabBarAppearance.stackedLayoutAppearance.selected.titleTextAttributes = [.foregroundColor: UIColor.red]
    tabBarAppearance.stackedLayoutAppearance.normal.titleTextAttributes = [.foregroundColor: UIColor.black]
    tabBarAppearance.stackedLayoutAppearance.normal.iconColor = UIColor.black
    tabBarAppearance.stackedLayoutAppearance.selected.iconColor = UIColor.red
    tabBarView.standardAppearance = tabBarAppearance
    tabBarView.scrollEdgeAppearance = tabBarAppearance
}

• tintColor: TabBarItem's color.
• barTintColor : TabBar's background bar's color.
• unselectedItemTintColor : color of unselected items.

修改ICON颜色

  //Original image displayed as is
        let imageView = UIImageView()
        imageView.frame = CGRect(x: 50, y: 50, width: 200, height: 200)
        imageView.contentMode = .scaleAspectFit
        view.addSubview(imageView)
        
        let myImageName = "apple_logo.png"
        let myImage = UIImage(named: myImageName)
        imageView.image = myImage
        
        //Image now displayed in BLUE color as this is DEFAULT tint
        let imageView2 = UIImageView()
        imageView2.frame = CGRect(x: 300, y: 50, width: 200, height: 200)
        imageView2.contentMode = .scaleAspectFit
        view.addSubview(imageView2)
        
        let myImageName2 = "apple_logo.png"
        let myImage2 = UIImage(named: myImageName2)
        imageView2.image = myImage2?.withRenderingMode(.alwaysTemplate)
        
        //Image now displayed in RED color
        let imageView3 = UIImageView()
        imageView3.frame = CGRect(x: 550, y: 50, width: 200, height: 200)
        imageView3.contentMode = .scaleAspectFit
        view.addSubview(imageView3)
        
        imageView3.image = myImage2?.withRenderingMode(.alwaysTemplate)
        imageView3.tintColor = UIColor.red