ios – 键盘隐藏UITextView swift 2

2024年1月5日 96次阅读

我使用带有2个海关单元的UITableView,我有UITextView和UITextField的自定义单元格,当它被键盘顶部的键盘隐藏时,我试图向上移动编辑的字段,这是我的viewDidLoad代码：

 override func viewDidLoad() {
        super.viewDidLoad()
 let notificationCenter = NSNotificationCenter.defaultCenter()
        notificationCenter.addObserver(self, selector: #selector(adjustForKeyboard), name: UIKeyboardWillShowNotification, object: nil)
        notificationCenter.addObserver(self, selector: #selector(adjustForKeyboard), name: UIKeyboardWillHideNotification, object: nil)
        notificationCenter.addObserver(self, selector: #selector(adjustForKeyboard), name: UIKeyboardWillChangeFrameNotification, object: nil)

    }

这里是发送键盘通知时调用的函数：

func adjustForKeyboard(notification: NSNotification) {
    let userInfo = notification.userInfo!

    let keyboardScreenEndFrame = (userInfo[UIKeyboardFrameEndUserInfoKey] as! NSValue).CGRectValue()
    let keyboardViewEndFrame = view.convertRect(keyboardScreenEndFrame, fromView: view.window)

    if notification.name == UIKeyboardWillHideNotification {
        myTableView.contentInset = UIEdgeInsetsZero
        print("ZERO")
    } else {
        myTableView.contentInset = UIEdgeInsets(top: 0, left: 0, bottom: keyboardViewEndFrame.height, right: 0)
    }

    myTableView.scrollIndicatorInsets = myTableView.contentInset
}

它适用于UITextField,但不适用于UITextView.为什么？

最佳答案 正如史蒂夫(
dismiss keyboard with a uiTextView)所回答

import UIKit

class ViewController: UIViewController, UITextViewDelegate {

    @IBOutlet weak var textView: UITextView!

    override func viewDidLoad() {
        super.viewDidLoad()

        textView.delegate = self
    }

    func textView(textView: UITextView, shouldChangeTextInRange range: NSRange, replacementText text: String) -> Bool {
        if(text == "\n") {
            textView.resignFirstResponder()
            return false
        }
        return true
    }

}
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