secureTextEntry 不会隐藏我的 UITextView 的文本 [英] secureTextEntry doesn't hide the text of my UITextView

问题描述

我正在尝试使用点而不是实际文本来隐藏用作密码条目的 UITextView 的文本.此文本视图称为 TV_Password.为空时，文本不应隐藏，应替换为字符串密码"

I'm trying to hide the text of a UITextView, used as a password entry, using dots instead of the actual text. This text view is called TV_Password. When its empty, the text should not be hidden and should be replaced by the string "Password"

我在网上发现解决方案是将以下属性更改为 true.

I found on the net that the solution would be to change the following property to true.

self.TV_Password.secureTextEntry = true

不幸的是，这仍然没有隐藏我的文字.我将修改移到 textViewShouldBeginEditing 而不是 textViewDidBeginEditing，正如对遇到此类问题的人的建议，但它仍然不起作用.我有各种断点告诉我指令真的完成了，但什么也没发生..

Unfortunately, this still doesn't hide my text. I moved the modifications to textViewShouldBeginEditing instead of textViewDidBeginEditing, as advised to people having this kind of issue, but it still doesn't work. I haves various breakpoints telling me the instruction IS really done, but nothing happens..

有什么想法吗?

//MARK: TextViews editing

func textViewShouldBeginEditing(textView: UITextView) -> Bool {
    if (textView == self.TV_Password){
        if (self.TV_Password.text == "Password"){
            //empty text
            self.TV_Password.text = ""
            //enable secured text
            self.TV_Password.secureTextEntry = true

        }
    }
    return true
}

func textViewDidEndEditing(textView: UITextView) {
    if (textView == self.TV_Password) {
        //if password empty
        if (self.TV_Password.text == ""){
            //disable secured text
            self.TV_Password.secureTextEntry = false
            //fill with the word "Password"
            self.TV_Password.text = "Password"
        }
    }
}

推荐答案

ANSWER :UITextView 没有安全输入模式，请改用 UITextField.非常感谢！

ANSWER : UITextView doesn't have a secure entry mode, use a UITextField instead. Thanks a lot!

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