Hello,
I have prepared a simple test case for a PopUpButton opening a TileList with black and red entries and it mostly works, but has 2 annoyances.
I've searched a lot, tried several variants (added [Bindable] members in my renderer; added color member to the bids array; created my public override set data() method; ...) and has been getting some answers too, but they are way too general.
I would appreciate if someone can suggest code to fix the 2 issues in my code:
1) Scrolling "tl2" right-left doesn't work well: the entries are displayed in a mix of red and black. I know the TileList reuses itemRenderer, but how do I fix the problem?
2) In debug-mode I get numerous warnings: warning: unable to bind to property 'label' on class 'Object' (class is not an IEventDispatcher)
Thank you, Alex
MyRenderer.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="<<"/>
<mx:PopUpButton id="pub" width="90"/>
<mx:Button id="right" label=">>"/>
</mx:ApplicationControlBar>
</mx:Application>
Update:
Thank you Wade, the warning is gone now (I guess it was not ok to use {data.label} in my label), but the "tl2" still has scrolling issues.
New MyRenderer.mxml (still has scrolling issues):
<?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>