Question

这可能是一个简单的问题，但我一直在测试这个测试项目中的一个问题的许多不同解决方案，现在我在编辑textView字段时无法通过完成按钮来重新设置键盘。< / p>

当用户点击开始编辑时，我的代码应该从键盘后面移动textView。然后，完成后，用户应该能够点击完成键并隐藏键盘并将textView移回视图的底部。在此代码中，点按屏幕将重新调整键盘并将textView移至其原始位置。问题是，当我在编辑textView时点击完成时，它会插入一个回车。

似乎我在SO中看到的所有其他问题都是针对Objective-C的。我正在使用Swift 2.谢谢你的帮助。

import UIKit

class ViewController: UIViewController, UITextFieldDelegate, UITextViewDelegate {

@IBOutlet var textViewField: UITextView!

override func viewDidLoad() {
    super.viewDidLoad()
    textViewField.layer.cornerRadius = 10
}

func textViewDidBeginEditing(textView: UITextView) { // became first responder

    //move textView up
    let myScreenRect: CGRect = UIScreen.mainScreen().bounds
    let keyboardHeight : CGFloat = 250

    UIView.beginAnimations( "animateView", context: nil)
    //var movementDuration:NSTimeInterval = 0.35
    var needToMove: CGFloat = 0

    var frame : CGRect = self.view.frame
    if (textView.frame.origin.y + textView.frame.size.height + UIApplication.sharedApplication().statusBarFrame.size.height > (myScreenRect.size.height - keyboardHeight)) {
        needToMove = (textView.frame.origin.y + textView.frame.size.height + UIApplication.sharedApplication().statusBarFrame.size.height) - (myScreenRect.size.height - keyboardHeight);
    }

    frame.origin.y = -needToMove
    self.view.frame = frame
    UIView.commitAnimations()
}

func textViewDidEndEditing(textView: UITextView) {
    //move textfields back down
    UIView.beginAnimations( "animateView", context: nil)
    var frame : CGRect = self.view.frame
    frame.origin.y = 0
    self.view.frame = frame
    UIView.commitAnimations()
}

//function to hide keyboard when Done key tapped for textField
func textFieldShouldReturn(textField: UITextField) -> Bool {
    textField.resignFirstResponder()
    return true
}

//funtion to hide keyboard when screen is tapped
override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
    self.view.endEditing(true)
}

}

Answer 1

在viewDidLoad中将VC指定为textview委托，并使用＆＃39; shouldChangeTextInRange＆＃39; textview委托

override func viewDidLoad() {
    super.viewDidLoad()
    textField.delegate = self
    textViewField.layer.cornerRadius = 10
}

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

为什么我的Done键不能退出键盘？

1 个答案: