在密码模式下更改TextInput中的字符

只是一种解决方法

适用于Flex 4.6

基于TextInput组件“skin_password”或类似组件创建新皮肤:

New MXML Skin

现在,在皮肤内部搜索这个(使用一些编辑器,您可以按 ,写 文本显示 并按下 进入 ):

<s:RichEditableText id="textDisplay" left="1" right="1" top="1" bottom="1"
                    verticalAlign="middle" widthInChars="12"
                    left.normal="1" right.normal="1" top.normal="1" bottom.normal="1"/>

添加属性 displayAs密码=true :

<s:RichEditableText id="textDisplay" left="1" right="1" top="1" bottom="1"
                    displayAsPassword="true" verticalAlign="middle" widthInChars="12"
                    left.normal="1" right.normal="1" top.normal="1" bottom.normal="1"/>

搜索此方法:

override protected function initializationComplete():void
    {
        useChromeColor = true;
        super.initializationComplete();
    }

添加此行(在我的例子中,是一个黑点,而不是默认的星号*):

textDisplay.mx_internal::passwordChar = "●";

我的皮肤示例在包装中 ):

<s:TextInput id="tiPassword" height="30" maxChars="12" skinClass="skins.skin_password" />

现在你有这样的东西: see working

-

-

再解释一下

当你设置 显示器密码 到 真 ,Flex将textFlow添加到TextInput中包含的RichEditableText中,并使用相同数量的“密码字符”。

你可以在代码中看到这一点 RichEditableText.as :

public function get text():String 
    {
        // Note: if displayAsPassword, _text will contain the actual text and the text flow will
        // contain the same number of passwordChars.

        // Go to the source if there isn't a pending change.  getText has its own buffering and 
        // only extracts the text from the TextFlow when it is damaged. 
        if (_textContainerManager && !textChanged && !textFlowChanged && !contentChanged && !displayAsPassword)
            return _textContainerManager.getText("\n");

        // Extracting the plaintext from a TextFlow is somewhat expensive,
        // as it involves iterating over the leaf FlowElements in the TextFlow.
        // Therefore we do this extraction only when necessary, namely when
        // you first set the 'content' or the 'textFlow'
        // (or mutate the TextFlow), and then get the 'text'.
        if (_text == null)
        {
            // If 'content' was last set,
            // we have to first turn that into a TextFlow.
            if (_content != null)
                _textFlow = createTextFlowFromContent(_content);

            // Once we have a TextFlow, we can export its plain text.
            _text = staticPlainTextExporter.export(
                _textFlow, ConversionType.STRING_TYPE) as String;
        }

        return _text;
    }

在功能中 textContainerManager_flowOperationBeginHandler(事件:FlowOperationEvent):无效

if (_displayAsPassword)
            {
                // Remove deleted text.
                if (delLen > 0)
                {
                    _text = splice(_text, delSelOp.absoluteStart, 
                                   delSelOp.absoluteEnd, "");                                    
                }

                // Add in the inserted text.
                if (textToInsert.length > 0)
                {
                    _text = splice(_text, insertTextOperation.absoluteStart,
                        insertTextOperation.absoluteStart, textToInsert);

                    // Display the passwordChar rather than the actual text.
                    textToInsert = StringUtil.repeat(passwordChar,
                        textToInsert.length);
                }
            }

你可以看到 密码Char mx内部

 /**
     *  @private
     */
    mx_internal var passwordChar:String = "*";

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