如何使UITextField可选但不可编辑？

I hope that user can copy and paste the text but not edit them. I use a delegate UITextField method to implement this:

我希望用户可以复制和粘贴文本，但不能编辑它们。我使用委托UITextField方法来实现这个：

- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range       replacementString:(NSString *)string{
    return NO;
}

In this way although the text is selectable and not editable, but when you select the text, the keyboard always shows up, which is a little bit annoying cause you can not edit the text. So is there anyway to make text selectable and not editable, without showing the keyboard?

这样虽然文本是可选择的而且不可编辑，但是当你选择文本时，键盘总是显示出来，这有点烦人，因为你无法编辑文本。那么无论如何在不显示键盘的情况下使文本可选而不可编辑？

5 个解决方案

#1

What you need is to allow the control to receive all user interaction events. So, do not return NO from textFieldShouldBeginEditing. Instead, do the following:

您需要的是允许控件接收所有用户交互事件。因此，不要从textFieldShouldBeginEditing返回NO。相反，请执行以下操作：

- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string
{
    return textField != _yourReadOnlyTextField;
}

This will allow the user to select the text and also to select options like Cut, Copy and Define from the popup menu.

这将允许用户选择文本，并从弹出菜单中选择剪切，复制和定义等选项。

UPDATE:

更新：

Also, for completeness, you may want to prevent the keyboard from showing up at all on readyonly textfields. So based on the accepted answer to this question: uitextfield hide keyboard?, you may want to add:

此外，为了完整起见，您可能希望防止键盘在现有文本字段上完全显示。所以基于这个问题的接受答案：uitextfield隐藏键盘？，你可能想要添加：

- (void)viewDidLoad
{
    // Prevent keyboard from showing up when editing read-only text field
    _yourReadOnlyTextField.inputView = [[UIView alloc] initWithFrame:CGRectZero];
}

#2

You should implement another UITextField's delegate method:

您应该实现另一个UITextField的委托方法：

- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField{
    return NO;
}

//UPDATE Also, there is a questions like this here How to disable UITextField's edit property?.

// UPDATE此外，这里有一个类似的问题如何禁用UITextField的编辑属性？

#3

Update for Swift users:

Swift用户的更新：

func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
    return textField != self.yourReadOnlyTextField;
}

and when the view loads

当视图加载时

override func viewDidLoad() {
    super.viewDidLoad()
    self.selfCodeEdit.inputView = UIView.init();
}

#4

if you have more then one textFields you can do in this way

如果你有多个textFields，你可以这样做

func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
    if textField == firstTextField || textField == secondTextField {
        return false
    }
    return true
}

#5

-2

You can do that directly through the storyboard.
Select your UITextView then in your Attributes inspector.
You have some behavior params :

您可以直接通过故事板来完成此操作。然后在“属性”检查器中选择您的UITextView。你有一些行为参数：

#1