Question

我想将.mxml中的字符串传递给.as类..因为我尝试使用[Bindable] ..但是我

只获取null值。如何从mxml中获取字符串？

I have given the link to show u what i have tried:

 http://192.150.16.67/devnet/flex/articles/databinding_pitfalls.html

Answer 1

请找到以下代码，这可以帮助您解决问题。

<强> Main.mxml

<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" 
               xmlns:s="library://ns.adobe.com/flex/spark" 
               xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600">
    <fx:Declarations>
        <!-- Place non-visual elements (e.g., services, value objects) here -->
    </fx:Declarations>
    <fx:Script>
        <![CDATA[

            private var stringReaderObject:StringReader;
            private function clickHandler():void
            {
                if(!stringReaderObject)
                {
                    stringReaderObject = new StringReader();
                }
                stringReaderObject.readString = inputTextID.text;
            }

        ]]>
    </fx:Script>
    <s:Group x="50" y="50">
        <s:layout>
            <s:VerticalLayout/>
        </s:layout>
        <s:TextInput id="inputTextID"/>
        <s:Button label="Click" click="clickHandler()"/>
    </s:Group>
</s:Application>

班级名称： - StringReader.as

package
{
    public class StringReader
    {
        private var _readString:String;
        public function StringReader()
        {
        }

        public function set readString(value:String):void
        {
            _readString = value;
            trace(_readString);
        }

        public function get readString():String
        {
            return _readString;
        }
    }
}

trace将确定如何将值从MXML传递到.as类。

可以通过以下两种方式实现： -

1）通过在您的类中创建公共变量。 2）在您的应用程序中创建全局并在您的班级中访问它。

希望这对你有所帮助。

如何将字符串从.mxml传递到adobe air flex中的.as类？

1 个答案: