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読み込んだJSONをLabelに改行付きで表示する

Last updated at Posted at 2014-06-26
{
    "text": "改行A\\n改行B"
}

<?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">
    <fx:Script>
        <![CDATA[
            protected function btnLoad_clickHandler( event:MouseEvent ):void {
                var loader:URLLoader = new URLLoader();
                loader.addEventListener( Event.COMPLETE, loadComplete );
                loader.load( new URLRequest( "./sample.json" ) );
            }

            private function loadComplete( event:Event ):void {
                var loader:URLLoader = event.target as URLLoader;
                var obj:Object = JSON.parse( loader.data );
                var value:String = obj.text as String;
                var reg:RegExp = /\\n/g;
                lblText.text = value.replace( reg, "\n" );
            }
        ]]>
    </fx:Script>

    <fx:Declarations>
        <!-- 非ビジュアルエレメント (サービス、値オブジェクトなど) をここに配置 -->
    </fx:Declarations>
    <s:VGroup>
        <s:Button id="btnLoad" click="btnLoad_clickHandler(event)"/>
        <s:Label id="lblText"/>
    </s:VGroup>
</s:Application>

RegExpを使って正規表現で\nを\nに置換することでLabel内で改行して表示される

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