在 Swift 代码中，我的标签没有出现在我的 ViewController 中

Question

当ViewController显示在phone上时Label不显示

我是 iOS 和 swift 的新手，我在 YouTube 上进行了广泛的搜索，但无济于事。在代码中，您可以看到我已两次尝试添加两个标签。并不是说 none 正在显示。导航元素工作正常。背景也设置正确。

import UIKit

class WelcomeController: UIViewController {

    // MARK: - Properties

    var pageTitle: UILabel!

    // MARK: - Init

    override func viewDidLoad() {
        super.viewDidLoad()

        view.backgroundColor = .white

        let frameLabel:CGRect = CGRect(x: 20, y: 0, width: UIScreen.main.bounds.width - 20, height: 50)
        let label:UILabel = UILabel(frame: frameLabel)
        label.text = "This text is not showing up on the screen!!! his text is not showing up on the screen!!! his text is not showing up on the screen!!!"
        label.textColor = .black
        label.textAlignment = .center
        view.addSubview(label)

        configureUI()

        configurePageTitleLabel()

    }

    // MARK: - Selectors

    @objc func handleDismiss() {
        dismiss(animated: true, completion: nil)
    }

    // MARK: - Helper Functions

    func configureUI() {

        navigationController?.navigationBar.barTintColor = .blue
        navigationItem.title = "Welcome"
        let textAttributes = [NSAttributedString.Key.foregroundColor:UIColor.white]
        navigationController?.navigationBar.titleTextAttributes = textAttributes

        navigationItem.leftBarButtonItem = UIBarButtonItem(image: #imageLiteral(resourceName: "ic_menu_white_3x").withRenderingMode(.alwaysOriginal), style: .plain, target: self, action: #selector(handleDismiss))

    }

    // MARK - Page Contents Functions

    func configurePageTitleLabel() {

        pageTitle = UILabel()
        pageTitle.text = "Welcome"
        pageTitle.textAlignment = .center
        pageTitle.textColor = .black
        let frameTitle:CGRect = CGRect(x: 20, y: 20, width: UIScreen.main.bounds.width - 20, height: 50)
        pageTitle.drawText(in: frameTitle)
        view.addSubview(pageTitle)
        view.backgroundColor = .gray

    }
}

Answer 1

y 值应大于 64 即。 20 个状态栏 + 44 个导航栏。此外，您不需要 drawText 和 frame tile。只需添加

pageTitle.frame = CGRect(x: 20, y: 200, width: UIScreen.main.bounds.width - 20, height: 50)

会起作用。

在 Swift 代码中，我的标签没有出现在我的 ViewController 中

In Swift code my Label is not showing up in my ViewController

textview

viewcontroller

ios

swift