CODEWITHSUNDEEP
iosswift
Elye
Elye

Reputation: 60301

UILabel code can be displayed, but not UITextView. What did I miss?

I have my UILabel code as below. It works find showing UILabel in my ViewController.

class ViewController: UIViewController {
    override func viewDidLoad() {
        super.viewDidLoad()
        let myText = UILabel()
        myText.text = "Testing"
        view.addSubview(myText)
        myText.translatesAutoresizingMaskIntoConstraints = false
        myText.backgroundColor = .green
        NSLayoutConstraint.activate([
            myText.centerXAnchor.constraint(equalTo: view.centerXAnchor),
            myText.centerYAnchor.constraint(equalTo: view.centerYAnchor),
        ])
    }
}

However if I change to UITextView as below, nothing appears. What did I do wrong?

class ViewController: UIViewController {
    override func viewDidLoad() {
        super.viewDidLoad()
        let myText = UITextView()
        myText.text = "Testing"
        view.addSubview(myText)
        myText.translatesAutoresizingMaskIntoConstraints = false
        myText.backgroundColor = .green
        NSLayoutConstraint.activate([
            myText.centerXAnchor.constraint(equalTo: view.centerXAnchor),
            myText.centerYAnchor.constraint(equalTo: view.centerYAnchor),
        ])
    }
}

Upvotes: 0

Views: 49

Answers (1)

Habin Lama
Habin Lama

Reputation: 559

you have to give height and width to UITextView or give Top, Bottom, Left, Right anchor.

NSLayoutConstraint.activate([
        myText.centerXAnchor.constraint(equalTo: view.centerXAnchor),
        myText.centerYAnchor.constraint(equalTo: view.centerYAnchor),
        myText.heightAnchor.constraint(equalToConstant: "Your height"),
        myText.widthAnchor.constraint(equalToConstant: "Your width")
])

Thanks

Upvotes: 2

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