[Interest] Android launch screens?

[jhihn at gmx.com]

That bug report is a run-on sentence.  I can't parse all the  nuaces of what the reporter is trying to say.  

So I have  my own theme created and specified for my application. It specifies 3 things;  windowBackground,  full screen,  and no title bar.  The  splash screen is  set to windowBackground color.  

Since i use custom  theme in manifest and in my app   i don't 

The  splash appears properly,  but then right before the  QML Window happens it flashes black.  I looked at the code and I'm not sure where this flash is coming from.  In  Qt I also set the  Qpallette::window color in  case it was  QML loading time and no change.  It's gotta be happening duribg loadApplication,  right? 

-----Original message-----
Sent: Thursday, 06 August 2015 at 07:50:41
From: "Samuel Nevala" <samuel.nevala at intopalo.com>
To: "Jason H" <jhihn at gmx.com>
Subject: Re: [Interest] Android launch screens?
Hi,

Startup flickering can be fixed by creating custom Android theme where
splash screen image is application background. Custom theme on the other
hand does not work as expected https://bugreports.qt.io/browse/QTBUG-44579.

Samuel Nevala

On 5 August 2015 at 23:48, Jason H <jhihn at gmx.com> wrote:

> Within the template QtActivity.java:
>  if
> (m_activityInfo.metaData.containsKey("android.app.splash_screen_drawable"))
>
> getWindow().setBackgroundDrawableResource(m_activityInfo.metaData.getInt("android.app.splash_screen_drawable"));
>   else
>     getWindow().setBackgroundDrawable(new ColorDrawable(0xff000000));
>
> That happens. But then later loadApplication(...) uses Ministro to load
> the Qt app. That's where I get lost. It seems that the handoff is not as
> good as it can be?
>
>
>
> Sent: Wednesday, August 05, 2015 at 4:15 PM
> From: "Alexey Godko" <koloboid at gmail.com>
> To: "Jason H" <jhihn at gmx.com>
> Cc: "interest at qt-project.org" <interest at qt-project.org>
> Subject: Re: [Interest] Android launch screens?
>
> I'm expecting the same issues, but on all my test devices black screen
> tooks less than one second, so it is not issue for me. May be custom redraw
> on Android's activity will help, I'll try it when time.
> Simple
> setting getWindow().getDecorView().findViewById(android.R.id.content).setBackgroundColor(0xFF0000);
> does not work. so it needs more investigation
>
> 2015-08-05 22:01 GMT+03:00 Jason H <jhihn at gmx.com>:
>
> Thanks, I have this working, kind-of.
>
> 1. Why does the resource merger only support [a-z]._ ? Android supports
> [A-Za-z]._
> 2. When My app launches it gets a black screen (with the title of the
> app), then goes to the splash.png, then goes back to black, then shows the
> IU. What are the tips for getting this as seamless as possible?
> My main Window element has {color: "..." } and the splash is of the same
> color. It seems it should not go back to black?
> And I think the title bar on launch is able to be hidden by a manifest
> setting maybe?
>
> Many thanks.
>
>
>
> Sent: Wednesday, August 05, 2015 at 11:29 AM
> From: "Alexey Godko" <koloboid at gmail.com[koloboid at gmail.com]>
> To: No recipient address
> Cc: "interest at qt-project.org[interest at qt-project.org]" <
> interest at qt-project.org[interest at qt-project.org]>
> Subject: Re: [Interest] Android launch screens?
>
> Just putting splash.png to res/drawable and line below to
> AndroidManifest.xml<meta-data
> android:name="android.app.splash_screen_drawable"
> android:resource="@drawable/splash"/>
>
> works for me
> Also, may be you want to display the same splash in your QML code with
> dynamically load rest of scene using Loader.
>
> 2015-08-05 18:03 GMT+03:00 Jason H <jhihn at gmx.com[http://jhihn@gmx.com]>:This
> question is 50% Qt and 50% Android. Now that I have a launch screen working
> in iOS, I'd like the same thing in Android.
>
> Now, iOS lists the launch screen separately from the rest of the
> application, so it can be loaded without having to load the whole app. I'm
> not sure this is the case in Android. Most android tutorials just create a
> Activity subclass with a timeout.
>
> I was wondering if:
> 1) There is a true launch screen for android (not just faking it with a
> timeout - I want it to only be displayed for as long as the app is loading),
> 2) How I can accomplish it in Qt? I *think* some people may have done
> something with a Loader Element to create a stub, then dynamically load the
> screens, but I'm not sure of what all that entails, and if there are any
> caveats.
> 2a) Also, do I need to provide an Activity, or can I do it all in Qt/QML?
> 2b) Is there any actual perceived benefit? The iOS makes the app seem more
> responsive in a way, and the loading time is not significantly increased.
>
> Many thanks in advance.
> _______________________________________________
> Interest mailing list
> Interest at qt-project.org[http://Interest@qt-project.org]
>
> http://lists.qt-project.org/mailman/listinfo/interest_______________________________________________
> Interest mailing list Interest at qt-project.org[Interest at qt-project.org]
> http://lists.qt-project.org/mailman/listinfo/interest
> _______________________________________________
> Interest mailing list
> Interest at qt-project.org
> http://lists.qt-project.org/mailman/listinfo/interest
>