我已经以编程方式实现了UITabBarController。功能工作正常,但UITabBarController不适合屏幕。
下面是我代码:
class ViewController: UIViewController {
let tabBarCnt = UITabBarController()
override func viewDidLoad() {
super.viewDidLoad()
tabBarCnt.tabBar.tintColor = UIColor.black
createTabBarController()
}
override func viewWillLayoutSubviews() {
super.viewWillLayoutSubviews()
addHeightConstraintToTabbar()
}
func addHeightConstraintToTabbar() -> Void {
let heightConstant:CGFloat = self.view.safeAreaInsets.bottom + 49.0
tabBarCnt.tabBar.heightAnchor.constraint(equalToConstant: heightConstant).isActive = true
}
func createTabBarController() {
let firstVc = UIViewController()
firstVc.title = "First"
firstVc.view.backgroundColor = UIColor.red
firstVc.tabBarItem = UITabBarItem.init(title: "Home", image: UIImage(named: "HomeTab"), tag: 0)
let secondVc = UIViewController()
secondVc.title = "Second"
secondVc.view.backgroundColor = UIColor.green
secondVc.tabBarItem = UITabBarItem.init(title: "Location", image: UIImage(named: "Location"), tag: 1)
let controllerArray = [firstVc, secondVc]
tabBarCnt.viewControllers = controllerArray.map{ UINavigationController.init(rootViewController: $0)}
self.view.addSubview(tabBarCnt.view)
}
}
结果屏幕截图
1条答案
按热度按时间xytpbqjk1#
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