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案子:
1)有两个.mxml文件(Windowed Application):一个是登录(活动窗口/启动窗口),另一个是主窗口。
2)主窗口有viewstack
3) 登录成功后,从主窗口调用 log-inHandler。
4) log-inHandler 访问主窗口的viewstack id。
5) 但 viewstack id 显示为空。
问题:
1)如何解决这种情况?