QT6 App Migration

Keneda

@projectmoon said:

will QT6 be available for use by apps

Reading the blog post, it seems a yes.

In Ubuntu Touch 24.04-2.0, Morph Browser receives a major upgrade in underlying browser engine from Chromium 87 to Chromium 134 which, while not the latest yet, improves compatibility with today's websites and web applications significantly.

projectmoon

@Keneda said:

@projectmoon said:

will QT6 be available for use by apps

Reading the blog post, it seems a yes, but not clearly.

The blog post was was precisely prompted me to make this topic.

gpatel-fr

@Keneda said:

and web applications significantly

web applications and apps are 2 different things I'd guess.

For fun I tried to replace in the launcher.sh for the piano app of @pparent the qmlscene6 (provided by the app, qt6 is packaged into the app) by the system one and it failed miserably so at the moment I think that QT6 is not available for apps, at least not in a straightforward way)

Vlad Nirky

@gpatel-fr
If my memory serves me correctly, morp is in QT6 but the rest is in QT5.
I imagine the change must be down to clickable...

pparent

@gpatel-fr

For fun I tried to replace in the launcher.sh for the piano app of @pparent the qmlscene6 (provided by the app, qt6 is packaged into the app) by the system one and it failed miserably so at the moment I think that QT6 is not available for apps, at least not in a straightforward way)

Possibly it is because you are using the qmlscene6 from the system but still the Qt6 library bundled into the app. It might not be compatible. You may try to remove the libraries form the app repository (or temporarily move them elsewhere) to see if it works better.

gpatel-fr

@pparent

I did not succeed.
Anyway I think now that the qmlscene system executable available in 26.04 is for QT5.

Your version prints a warning that it is deprecated, the system one don't display it so I guess it's an older version hence for QT5.

Keneda

@gpatel-fr
That's why i said it "seems" (and in first édition i added "not clearly")
Because for me, in Ubuntu Touch, "web applications" refers to this : https://open-store.io/?type=webapp%2B

gpatel-fr

@Keneda

Yes the blog post was addressing the limited case of web applications, not the general case of internal apps that the initial post of this thread was referring to.

Vlad Nirky

@gpatel-fr
I guess, when all will be ready, that Ratchanan will give the go to use QT6 in clickable with the next framework as he did for 24.04.

pparent

@gpatel-fr

I've posted a new version of Touch Piano, that now runs on 24.04-2.x, you can retry your tests with it if you want.

My guess is that at least part of the packets included into the bundle could be removed to use the system libraries on 24.04-2.0, but I will wait for official Qt6 app guidelines before doing that.