WipeLeft

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2023-12-01

介绍 (Introduction)

WipeLeft类定义擦除左边效果。组件的前或后状态必须是不可见的。

Class 声明 (Class Declaration)

以下是mx.effects.WipeLeft类的声明 -

public class WipeLeft
   extends MaskEffect

公共方法 (Public Methods)

S.No	方法和描述
1	WipeLeft(target:Object = null) 构造函数。

方法继承 (Methods Inherited)

该类继承以下类中的方法 -

mx.effects.MaskEffect
mx.effects.Effect
flash.events.EventDispatcher
Object

Flex WipeLeft效果示例

让我们按照以下步骤通过创建测试应用程序来检查Flex应用程序中WipeLeft效果的使用情况 -

步	描述
1	在cn.xnip.client包下创建一个名为HelloWorld的项目，如Flex - Create Application一章中所述。
2	修改HelloWorld.mxml ，如下所述。保持其余文件不变。
3	编译并运行应用程序以确保业务逻辑按照要求运行。

以下是修改后的mxml文件src/cn.xnip/HelloWorld.mxml 。

<?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
   width = "100%" height = "100%" minWidth = "500" minHeight = "500">
   <fx:Style source = "/com/xnip/client/Style.css" />
   <fx:Script>
      <![CDATA[
         protected function btnWipeLeft_clickHandler
           (event:MouseEvent):void {			
            imageFlex.visible = true;
         }
      ]]>
   </fx:Script>
   <fx:Declarations>
      <mx:WipeLeft id = "wipeLeft" duration = "2000" />
   </fx:Declarations>
   <s:BorderContainer width = "630" height = "480" id = "mainContainer" 
      styleName = "container">
      <s:VGroup width = "100%" height = "100%" gap = "50" 
         horizontalAlign = "center" verticalAlign = "middle">
         <s:Label id = "lblHeader" text = "Effects Demonstration" 
            fontSize = "40" color = "0x777777" styleName = "heading" />
         <s:Panel id = "wipeLeftPanel" title = "Using WipeLeft Effect" 
            width = "500" height = "300" includeInLayout = "true" visible = "true">
            <s:layout>
               <s:VerticalLayout  gap = "10" verticalAlign = "middle" 
                  horizontalAlign = "center" />
            </s:layout>			
            <mx:Image id = "imageFlex" visible = "{false}" 
               source = "https://www.xnip.cn/images/flex-mini.png" 
               showEffect = "{wipeLeft}" />
            <s:Button id = "btnWipeLeft" label = "Wipe Left" 
               click = "btnWipeLeft_clickHandler(event)" />            
          </s:Panel>
       </s:VGroup>	 
    </s:BorderContainer>	
</s:Application>

一旦准备好完成所有更改，让我们像在Flex - Create Application章节中那样在正常模式下编译和运行应用程序。