I thought I'd add an example where you can see the difference between the underlining in a text field vs a text view. I made the text view look and behave like a text field.
import UIKit
class ViewController: UIViewController, UITextViewDelegate {
var textViewPlaceholder1: UILabel!
var textViewPlaceholders = [UILabel]() // needed if more than one text view
let kFontSize: CGFloat = 17.0
let kPlaceholderLeftInset: CGFloat = 8.0
override func viewDidLoad() {
super.viewDidLoad()
let textView1Frame = CGRect(x: 20.0, y: 100.0, width: 300.0, height: 34.0)
let textView1 = makeTextView(withFrame: textView1Frame)
textView1.tag = 0
view.addSubview(textView1)
let textViewPlaceholder1Frame = CGRect(x: textView1Frame.origin.x + kPlaceholderLeftInset,
y: textView1Frame.origin.y,
width: textView1Frame.width,
height: textView1Frame.height)
textViewPlaceholder1 = UILabel(frame: textViewPlaceholder1Frame)
textViewPlaceholder1.attributedText = NSAttributedString(string: "Text view 1...", attributes: [.foregroundColor : UIColor.systemGray3, .font : UIFont.systemFont(ofSize: kFontSize)])
textViewPlaceholder1.isHidden = true
textViewPlaceholders.append(textViewPlaceholder1)
view.addSubview(textViewPlaceholder1)
let textField2 = UITextField(frame: CGRect(x: 20.0, y: 150.0, width: 300.0, height: 34.0))
textField2.font = .systemFont(ofSize: kFontSize)
textField2.borderStyle = UITextField.BorderStyle.roundedRect
textField2.allowsEditingTextAttributes = true
textField2.placeholder = "Text field 2..."
view.addSubview(textField2)
}
func makeTextView(withFrame: CGRect) -> UITextView {
let textView = UITextView(frame: withFrame)
textView.delegate = self
textView.layer.cornerRadius = 5.0
textView.layer.borderWidth = 1.0
textView.layer.borderColor = UIColor.systemGray4.cgColor
textView.textContainerInset = UIEdgeInsets(top: 7.0, left: 2.0, bottom: 5.0, right: 5.0)
textView.font = .systemFont(ofSize: kFontSize)
textView.allowsEditingTextAttributes = true
return textView
}
func textView(_ textView: UITextView, shouldChangeTextIn range: NSRange, replacementText text: String) -> Bool {
guard text.rangeOfCharacter(from: CharacterSet.newlines) == nil else {
textView.resignFirstResponder() // uncomment this to close the keyboard when return key is pressed
return false
}
if (range.location > 0 || text.count != 0) {
textViewPlaceholders[textView.tag].isHidden = true
} else {
textViewPlaceholders[textView.tag].isHidden = false
}
return true
}
}
GoodBrue
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In my case, the error occurs only if the table view is scrolled before a row is selected. It's a hack, but your solution worked for me. Thanks!