Starling Feathers Controls LayoutGroup

说明：

The LayoutGroup class provides a generic container for layout without scrolling. By default, you can position children manually,
but you can also pass in a layout implementation to position the children automatically.

示例：

var group:LayoutGroup = new LayoutGroup();
var layout1:HorizontalLayout = new HorizontalLayout();
layout1.gap = 20;
layout1.padding = 20;

var layout2:VerticalLayout= new VerticalLayout();
layout2.gap = 20;
layout2.padding = 20;

group.layout = layout1;//水平方向排列
// group.layout = layout2;//竖直方向排列
this.addChild( group );

var yesButton:Button = new Button();
yesButton.label = "Yes";
group.addChild( yesButton );

var noButton:Button = new Button();
noButton.label = "No";
group.addChild( noButton );

var label:Label = new Label();
label.text = "Hello World";
group.addChild( label );

效果：





更多说明参考：
http://wiki.starling-framework.org/feathers/layout-group