actionscript-3 - Dynamic s:View title

Question

This seems like it should be super easy, but I can't figure it out. How do you dynamically change the title of a page based on some variable?

By title, I mean the title of my view like this:

<s:View xmlns:fx="http://ns.adobe.com/mxml/2009" 
    xmlns:s="library://ns.adobe.com/flex/spark" title="DynamicTitle" creationComplete="init(event)">

Thanks!

Answer 1

您正在寻找的是弹性数据绑定。

为了绑定到 MXML 中的变量，请尝试以下语法。

<s:View ... title="{stringVar}" ... >

[Bindable] //metadata tag makes the variable bindable
public var stringVar:String = "StartingTitle";

Answer 2

在 ActionScript 中的某个地方执行此操作：

this.title = 'New Value'

因此，假设您有一个名为 myTitleText 的 TextInput，如下所示：

每当标题更改时，都会有一个事件处理程序。在事件处理程序中，更改文本：

protected function onChange():void{
 this.title = myTitleText.text;
}