[Interest] How to make the QML gui be never stopped on Android

[Vadim Peretokin]

Your users will uninstall your app because of poor battery life if you want
to keep a GUI running while the phone is asleep.

I recommend reconsidering your architecture.

On Thu, 15 Feb 2018, 1:01 pm Denis Shienkov, <denis.shienkov at gmail.com>
wrote:

> Hi Jérôme,
>
>
> > <meta-data android:name="android.app.background_running"
> android:value="true"/>
>
>
> I already have this property in My manifect file.
>
>
> > That service will need to communicate with your application through
> intent I think. The service could try to wake your application.
>
>
> I need to continue render/update for some dynamic QML GUI even when an
> application goes to sleep.
>
>
> I don't know how to use a service to render a some GUI stuff, e.g. in
> off-screen mode.
>
>
> Maybe I need to use a QTimer which will call the QQuickWindow::update()
> method,
>
> I don't know...
>
>
> Denis.
>
> 15.02.2018 17:37, Jérôme Godbout пишет:
>
> Hi,
>
> I do the following for quick oauth2 background html handling:
>
> <meta-data android:name="android.app.background_running"
> android:value="true"/>
>
> inside the Qt activity tag of the AndroiManifest.xml
>
>
> I wish it was easier to specify a single network activity that can
> continue into the background or at least a network intent that can wake the
> application up (could handle the message an/or bring application up front
> again).
>
>
> I think you will need to create a service to have a full fledge UDP
> listener that continue even after the application screen goes off. That
> service will need to communicate with your application through intent I
> think. The service could try to wake your application. Not a specialist
> about this but this might help, good luck and let us known how you did
> solve it, I'm curious about all this, this still a pain to make those work
> properly.
> ------------------------------
> *From:* Interest <interest-bounces+godboutj=amotus.ca at qt-project.org>
> <interest-bounces+godboutj=amotus.ca at qt-project.org> on behalf of Denis
> Shienkov <denis.shienkov at gmail.com> <denis.shienkov at gmail.com>
> *Sent:* Thursday, February 15, 2018 9:25:38 AM
> *To:* interest at qt-project.org
> *Subject:* [Interest] How to make the QML gui be never stopped on Android
>
>
> Hi all,
>
> I use QML and Qt 5.9.3 on my Android application.
>
> I achieved some tricks that my application continued to
> work when the smartphone goes to sleep or when the user
> presses the 'power' button, i.e. seems, that an
> application running in background mode.
>
> I do not use an Android service here (because I dont
> know how to do it, also I'm not sure that this will help).
>
> So, when the application goes to background mode,
> I see that it continues to work, because I see that
> my UDP "keep-alive" messages are sends and receives.
>
> But, A MAIN problem is that a QML GUI is stopped then...
> i.e. does not updates.
>
> I need to do GUI grabbing in a real time and send it
> to UDP in any case.
>
> Is it possible to make a GUI work forewer?
> BR,
> Denis
>
>
>
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