带tillelist和自定义渲染器的弹出按钮

我为一个弹出按钮准备了一个简单的测试用例,它打开了一个包含黑色和红色条目的tilleist,并且大部分都可以工作,但是有两个烦恼。

我搜索了很多,尝试了几个变体(在渲染器中添加了[可绑定]成员;在bids数组中添加了颜色成员;创建了 公共重写集数据() 方法;…)也得到了一些答案,但它们太笼统了。

如果有人能建议代码来解决我代码中的两个问题,我将不胜感激:

1)向左滚动“tl2”不太好:条目以红色和黑色混合显示。我知道tilleist会重用itemrenderer,但是如何解决这个问题?

2)在调试模式下,我收到许多警告: 警告:无法绑定到类“object”上的属性“label”(类不是IEventDispatcher)

谢谢您, 亚历克斯

迈伦德尔.mxml:

    <?xml version="1.0" encoding="utf-8"?>
<mx:Canvas xmlns:mx="http://www.adobe.com/2006/mxml"
           verticalScrollPolicy="off" horizontalScrollPolicy="off"
           width="100%" height="100%">
    <mx:Script>
        <![CDATA[
            public static function findColor(str:String):uint {
                return (str.indexOf('♥') != -1 ||
                    str.indexOf('♦') != -1) ? 0xFF0000 : 0x000000;
            }
        ]]>
    </mx:Script>

    <mx:Label truncateToFit="true" width="60"
              text="{data.label}" color="{findColor(data.label)}"/>
</mx:Canvas>

MyTest.mxml:

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
                creationPolicy="all" applicationComplete="init(event);">
    <mx:Style>
        @font-face {
            src:url("C:\\WINDOWS\\Fonts\\arial.ttf");
            fontFamily: myFont;
            unicodeRange:
                U+0020-U+0040, /* Punctuation, Numbers */
                U+0041-U+005A, /* Upper-Case A-Z */
                U+005B-U+0060, /* Punctuation and Symbols */
                U+0061-U+007A, /* Lower-Case a-z */
                U+007B-U+007E, /* Punctuation and Symbols */
                U+0410-U+0451, /* cyrillic */
                U+2660-U+266B; /* card suits */
        }
        List, CheckBox, Label, Button, PopUpButton, TileList {
            fontFamily: myFont;
            fontSize: 24;
        }
    </mx:Style>

    <mx:Script>
        <![CDATA[
            import mx.controls.*;
            import mx.events.*;

            [Bindable]
            private var bids:Array;
            private var tl:TileList;

            private function init(event:FlexEvent):void {
                bids = createBids();
                pub.popUp = createList(bids);
            }

            private function createBids():Array {
                var arr:Array = [{label: 'Pass'}];
                for (var i:uint = 6; i <= 10; i++)
                    for (var j:uint = 0; j < 5; j++)
                        arr.unshift({label: i+'♠♣♦♥ '.charAt(j%5)});

                return arr;
            }

            private function createList(arr:Array):TileList {
                tl = new TileList();
                tl.maxColumns = 5;
                tl.width = 350;
                tl.height = 250;
                tl.dataProvider = arr;
                tl.itemRenderer = new ClassFactory(MyRenderer);
                tl.addEventListener('itemClick', itemClickHandler);

                if (arr.length > 0) {
                    tl.selectedIndex = arr.length - 1;
                    pub.label = arr[tl.selectedIndex].label;
                }

                return tl;
            }

            private function itemClickHandler(event:ListEvent):void {
                var index:uint = tl.columnCount * event.rowIndex + event.columnIndex;
                var label:String = bids[index].label;
                pub.label = label;
                pub.setStyle('color', MyRenderer.findColor(label));
                pub.close();
                tl.selectedIndex = index;
            }
        ]]>
    </mx:Script>

    <mx:Panel title="TileList scrolling problem" height="100%" width="100%"
              paddingTop="10" paddingBottom="10" paddingLeft="10" paddingRight="10">

        <mx:Label width="100%" color="blue" text="Select your bid:"/>

        <mx:TileList id="tl2" height="200" width="200"
                     maxColumns="5" rowHeight="30" columnWidth="60"
                     dataProvider="{bids}" itemRenderer="MyRenderer"/>
    </mx:Panel>

    <mx:ApplicationControlBar width="100%">
        <mx:Spacer width="100%"/>
        <mx:CheckBox id="auto" label="Auto:"/>
        <mx:Button id="left" label="&lt;&lt;"/>
        <mx:PopUpButton id="pub" width="90"/>
        <mx:Button id="right" label="&gt;&gt;"/>
    </mx:ApplicationControlBar>
</mx:Application>

更新:

谢谢你,韦德,警告已经消失了 {数据、标签} 但“tl2”仍有滚动问题。

新的myrenderer.mxml(仍有滚动问题):

<?xml version="1.0" encoding="utf-8"?>
<mx:Canvas xmlns:mx="http://www.adobe.com/2006/mxml"
           verticalScrollPolicy="off" horizontalScrollPolicy="off"
           width="100%" height="100%">
    <mx:Script>
        <![CDATA[

            override public function set data(value:Object):void {
                super.data = value;

                var str:String = String(value.label);
                myLabel.text = str;
                myLabel.setStyle('color', findColor(str));
            }

            public static function findColor(str:String):uint {
                return (str.indexOf('♥') != -1 ||
                    str.indexOf('♦') != -1) ? 0xFF0000 : 0x000000;
            }
        ]]>
    </mx:Script>

    <mx:Label id="myLabel" truncateToFit="true" width="60"/>
</mx:Canvas>