Flex中如何利用timer控制改变ViewStack当前选中Index的例子

最新推荐文章于 2022-12-30 09:16:39 发布

最新推荐文章于 2022-12-30 09:16:39 发布 · 112 阅读

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#Flex #Adobe #XML #Blog #HTML

```
<?xml version="1.0" encoding="utf-8"?>
```

<mx:Applicationxmlns:mx="http://www.adobe.com/2006/mxml"

```
    layout="vertical"
```
```
    verticalAlign="middle"
```
```
    backgroundColor="white"
```
```
    creationComplete="init();">
```
```
  <mx:Script>
```
```
    <![CDATA[
```
```
      private var timer:Timer;
```
```
      private function init():void {
```

        timer = new Timer(1000); /* 1000ms == 1second */

        timer.addEventListener(TimerEvent.TIMER, onTimer);

```
      }
```

      private function onTimer(evt:TimerEvent):void {

        var idx:uint = viewStack.selectedIndex;

        var max:uint = viewStack.numChildren;

```
        var newIdx:uint = ++idx % max;
```

        viewStack.selectedIndex = newIdx;

```
      }
```

      private function startTimer():void {

```
        if (!timer.running) {
```
```
          timer.start();
```
```
        }
```
```
      }
```

      private function stopTimer():void {

```
        if (timer.running) {
```
```
          timer.stop();
```
```
        }
```
```
      }
```
```
    ]]>
```
```
  </mx:Script>
```
```
  <mx:ApplicationControlBardock="true">
```

    <mx:Buttonlabel="Start timer" click="startTimer();" />

    <mx:Buttonlabel="Stop timer" click="stopTimer();" />

```
    <mx:Spacerwidth="100%" />
```
```
    <mx:Labeltext="selectedIndex:" />
```
```
    <mx:HSliderid="slider"
```
```
        minimum="0"
```
```
        maximum="3"
```
```
        liveDragging="true"
```
```
        snapInterval="1"
```
```
        tickInterval="1"
```

        change="viewStack.selectedIndex = event.value;"/>

```
  </mx:ApplicationControlBar>
```

  <mx:ViewStackid="viewStack" width="100%" height="100%">

```
    <mx:VBoxbackgroundColor="haloBlue"
```
```
        width="100%"
```
```
        height="100%">
```
```
      <mx:Labeltext="VBox 1" />
```
```
    </mx:VBox>
```
```
    <mx:VBoxbackgroundColor="haloGreen"
```
```
        width="100%"
```
```
        height="100%">
```
```
      <mx:Labeltext="VBox 2" />
```
```
    </mx:VBox>
```

    <mx:VBoxbackgroundColor="haloOrange"

```
        width="100%"
```
```
        height="100%">
```
```
      <mx:Labeltext="VBox 3" />
```
```
    </mx:VBox>
```

    <mx:VBoxbackgroundColor="haloSilver"

```
        width="100%"
```
```
        height="100%">
```
```
      <mx:Labeltext="VBox 4" />
```
```
    </mx:VBox>
```
```
  </mx:ViewStack>
```
```
</mx:Application>
```

本文转自:http://blog.minidx.com/2009/01/29/2040.html

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