入门使用Flex 3的UI ActionScript编程 [英] Getting Started with Flex 3 UI ActionScript Programming

问题描述

是否有启动Flex 3的UI编程在ActionScript任何好的资源？我有以下的一些问题，如果任何人有任何的想法。它得到正确的大小，但我的按钮都没有显示出来。任何人有什么想法？

 包
{
    导入flash.display使用*。

    进口mx.controls.Button类;
    进口mx.controls.TileList;
    进口mx.controls.sliderClasses.Slider;
    进口mx.controls.ProgressBar;

    进口类flash.net.FileReferenceList;

    [SWF（宽度=720，高度=480，的backgroundColor =＃FFFFFF，帧率=30）]

    公共类PhotoUploader扩展Sprite
    {
    VAR AddPhotosButton：按钮;
    VAR RemovePhotoButton：按钮;
    VAR UploadPhotosButton：按钮;

    公共职能PhotoUploader（）：无效
    {
    在Stage.scaleMode = StageScaleMode.NO_SCALE时;
    stage.align = StageAlign.TOP_LEFT;

    AddPhotosButton =新按钮（）;
    AddPhotosButton.x = 10;
    AddPhotosButton.y = 10;
    AddPhotosButton.width = 100;
    AddPhotosButton.height = 20;

    RemovePhotoButton =新按钮（）;
    UploadPhotosButton =新按钮（）;

    的addChild（AddPhotosButton）;
    的addChild（RemovePhotoButton）;
    的addChild（UploadPhotosButton）;
    }
    }
}
 

解决方案

对于一个真正的Flex应用程序，我想你需要开始一个顶级 mx.core.Application （通常在MXML而不是ActionScript中定义），为您将增加 mx.core.UIComponent在秒。我想你的 PhotoUploader 将是一个自定义UIComponent的一个很好的例子。

借助 Flex帮助/教程页都相当不错。我建议你​​开始在那里。明确覆盖 自定义组件，但你可能想早些时候开始流。

Are there any good resources for starting Flex 3 UI programming in ActionScript? I am having some issues with the following if anyone has any ideas. It gets the right size, but my buttons are not showing up. Anyone have any ideas?

package 
{
    import flash.display.*;

    import mx.controls.Button;
    import mx.controls.TileList;
    import mx.controls.sliderClasses.Slider;
    import mx.controls.ProgressBar;

    import flash.net.FileReferenceList;

    [SWF(width="720", height="480", backgroundColor="#ffffff", framerate="30")]

    public class PhotoUploader extends Sprite
    {
    	var AddPhotosButton:Button;
    	var RemovePhotoButton:Button;
    	var UploadPhotosButton:Button;

    	public function PhotoUploader():void
    	{
    		stage.scaleMode = StageScaleMode.NO_SCALE;
    		stage.align = StageAlign.TOP_LEFT;

    		AddPhotosButton = new Button();
    		AddPhotosButton.x = 10;
    		AddPhotosButton.y = 10;
    		AddPhotosButton.width = 100;
    		AddPhotosButton.height = 20;

    		RemovePhotoButton = new Button();
    		UploadPhotosButton = new Button();

    		addChild(AddPhotosButton);
    		addChild(RemovePhotoButton);
    		addChild(UploadPhotosButton);
    	}
    }
}

解决方案

For a true Flex application, I think you need to start with a top level mx.core.Application (often defined in MXML rather than ActionScript), to which you would add mx.core.UIComponents. I think your PhotoUploader would be a good example of a custom UIComponent.

The Flex help/tutorial pages are quite good. I'd recommend starting there. Custom components are covered explicitly, but you might want to start earlier in the stream.

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