apache-flex - Flex4：如何在 AS 中添加子元素以触发 Scroller

Question

我想将以下代码转换为 ActionScript（mxml 工作正常）：

<mx:Panel title="Some Title" width="400" height="300">
  <s:Scroller width="100%" height="100%"/>
    <mx:ColumnChart id="myChart" attribute="..." />

这不能直接工作：

setupChart(); //setup myChart

var scroll:Scroller = new Scroller();
scroll.percentWidth = 100;
scroll.percentHeight = 100;
scroll.viewport = myChart;

Answer 1

首先添加一个组对我有用

setupChart();

var grp:Group = new Group();
grp.percentWidth = 100;
grp.percentHeight = 100;
grp.addElement( myChart );

var scroll:Scroller = new Scroller();
scroll.percentWidth = 100;
scroll.viewport = grp;