利用Flex的TileList控件创建一个简单的图片展示（相册）的例子

和前面的 利用Flex的HorizontalList控件创建一个简单的图片展示（相册）很相似，这个例子展示了如何利用Flex的TileList控件，Image控件和PopUpManager类来创建一个简单的图片展示（相册）。

下面是具体的例子以及源代码：

Download: main.mxml

1. <?xml version="1.0" encoding="utf-8"?>
2. <!-- http://blog.flexexamples.com/2008/03/08/creating-a-simple-image-gallery-with-the-flex-tilelist-control/ -->
3. <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
4.         layout="vertical"
5.         verticalAlign="middle"
6.         backgroundColor="white">
8.     <mx:Style>
9.         global {
10.             modal-transparency: 0.9;
11.             modal-transparency-color: white;
12.             modal-transparency-blur: 9;
13.         }
14.     </mx:Style>
16.     <mx:Script>
17.         <![CDATA[
18.             import mx.effects.Resize;
19.             import mx.events.ResizeEvent;
20.             import mx.events.ListEvent;
21.             import mx.controls.Image;
22.             import mx.events.ItemClickEvent;
23.             import mx.managers.PopUpManager;
25.             private var img:Image;
27.             private function tileList_itemClick(evt:ListEvent):void {
28.                 img = new Image();
29.                 // img.width = 300;
30.                 // img.height = 300;
31.                 img.maintainAspectRatio = true;
32.                 img.addEventListener(Event.COMPLETE, image_complete);
33.                 img.addEventListener(ResizeEvent.RESIZE, image_resize);
34.                 img.addEventListener(MouseEvent.CLICK, image_click);
35.                 img.source = evt.itemRenderer.data.@fullImage;
36.                 img.setStyle("addedEffect", image_addedEffect);
37.                 img.setStyle("removedEffect", image_removedEffect);
38.                 PopUpManager.addPopUp(img, this, true);
39.             }
41.             private function image_click(evt:MouseEvent):void {
42.                 PopUpManager.removePopUp(evt.currentTarget as Image);
43.             }
45.             private function image_resize(evt:ResizeEvent):void {
46.                 PopUpManager.centerPopUp(evt.currentTarget as Image);
47.             }
49.             private function image_complete(evt:Event):void {
50.                 PopUpManager.centerPopUp(evt.currentTarget as Image);
51.             }
52.         ]]>
53.     </mx:Script>
55.     <mx:WipeDown id="image_addedEffect" startDelay="100" />
57.     <mx:Parallel id="image_removedEffect">
58.         <mx:Zoom />
59.         <mx:Fade />
60.     </mx:Parallel>
62.     <mx:XML id="xml" source="gallery.xml" />
63.     <mx:XMLListCollection id="xmlListColl" source="{xml.image}" />
65.     <mx:TileList id="tileList"
66.             dataProvider="{xmlListColl}"
67.             itemRenderer="CustomItemRenderer"
68.             columnCount="4"
69.             columnWidth="125"
70.             rowCount="2"
71.             rowHeight="100"
72.             themeColor="haloSilver"
73.             verticalScrollPolicy="on"
74.             itemClick="tileList_itemClick(event);" />
76. </mx:Application>

下面是自定义的ItemRenderer设置文件：

Download: CustomItemRenderer.mxml

1. <?xml version="1.0" encoding="utf-8"?>
2. <!-- http://blog.flexexamples.com/2008/03/08/creating-a-simple-image-gallery-with-the-flex-tilelist-control/ -->
3. <mx:VBox xmlns:mx="http://www.adobe.com/2006/mxml"
4.         horizontalAlign="center"
5.         verticalAlign="middle">
7.     <mx:Image source="{data.@thumbnailImage}" />
9.     <mx:Label text="{data.@title}" />
11. </mx:VBox>

接下来是图片定义的XML文件：

Download: gallery.xml

1. <?xml version="1.0" encoding="utf-8"?>
2. <!-- http://blog.flexexamples.com/2008/03/08/creating-a-simple-image-gallery-with-the-flex-tilelist-control/ -->
3. <gallery>
4.     <image title="Flex"
5.         thumbnailImage="assets/fx_appicon-tn.gif"
6.         fullImage="assets/fx_appicon.jpg" />
7.     <image title="Flash"
8.             thumbnailImage="assets/fl_appicon-tn.gif"
9.             fullImage="assets/fl_appicon.jpg" />
10.     <image title="Illustrator"
11.             thumbnailImage="assets/ai_appicon-tn.gif"
12.             fullImage="assets/ai_appicon.jpg" />
13.     <image title="Dreamweaver"
14.             thumbnailImage="assets/dw_appicon-tn.gif"
15.             fullImage="assets/dw_appicon.jpg" />
16.     <image title="ColdFusion"
17.             thumbnailImage="assets/cf_appicon-tn.gif"
18.             fullImage="assets/cf_appicon.jpg" />
19.     <image title="Flash Player"
20.             thumbnailImage="assets/fl_player_appicon-tn.gif"
21.             fullImage="assets/fl_player_appicon.jpg" />
22.     <image title="Fireworks"
23.             thumbnailImage="assets/fw_appicon-tn.gif"
24.             fullImage="assets/fw_appicon.jpg" />
25.     <image title="Lightroom"
26.             thumbnailImage="assets/lr_appicon-tn.gif"
27.             fullImage="assets/lr_appicon.jpg" />
28.     <image title="Photoshop"
29.             thumbnailImage="assets/ps_appicon-tn.gif"
30.             fullImage="assets/ps_appicon.jpg" />
31. </gallery>

下面是执行实例（可以右键察看源代码）：