[Interest] How to switch two Qt applications on Embedded Linux ?

[Filip Piechocki]

Do you have any window manager on your embedded device? What QPA plugin do
you use on your embedded device?

BR,
Filip Piechocki


On Mon, May 26, 2014 at 11:34 AM, Xubao Jiang <jiangxubao at gmail.com> wrote:

> Hi all,
>
> I meet an problem about switch two Qt applications on my Embedded Linux
> soc.
>
> I have written an application "Launcher", which will start other
> applications using QProcess. It calls hide() when the new app start, and
> calls show() when the new app is closed. This works normally.
>
> Now I want to the two applications can be alive at the same time. I tried
> to call hide() in the new app, and then send messages(D-Bus) to Launcher.
> When Launcher receives this message, it will call show(). But Launcher
> didn't show again, and the screen is black. After debugging, Launcher did
> receive the message and show() is called. I don't know why it doesn't
> display again.
>
> This method works normally on Ubuntu pc. I want to know if Qt embedded
> supports this feature or not? My Qt version is 5.0.2.
>
> One work round is to write one application to do all work, but it seems
> too complicated. Does anyone have met the same issue before? What is your
> solution for application management? Is one application the general
> solution for this?
>
>
> Best regards,
> Xubao
>
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