Permit to build APK compatible with Pico 4 XR headset

[Ybalrid]

This patch changes 2 things that may be unrelated (individual commits):

• Fix a compilation error when building the app with Clang on Android (Passing an unsigned long to QVariant from Qt 5.15)
• Lower the minimal and target Android SDK to version 29 in the main Gradle file. This allows building the app for devices stuck on Android 10 (Pico 4 and Oculus Quest 1 headset for example)

[SaschaWillems]

Sadly can't accept this. The min. play store requirement for targetSdkVersion is 33 as of August 2023. With this change I would no longer be able to release updates to the store. The only version I could lower is the minSdkVersion.

[Ybalrid]

I see. I'd be happy to see that minimum version lowered to 29 at least. I have edited my branch for that, but now I have another question:

How is VulkanDeviceInfoExtensions.cpp being generated?

I have removed from this branch the typecast that I've added, but I would like to double-check why the QVariant constructor was not able to be called in the toolchain I was using

[SaschaWillems]

How is VulkanDeviceInfoExtensions.cpp being generated?

See https://github.com/SaschaWillems/VulkanCapsViewer/blob/master/docs/update_headers.md

[Ybalrid]

How is VulkanDeviceInfoExtensions.cpp being generated?

See https://github.com/SaschaWillems/VulkanCapsViewer/blob/master/docs/update_headers.md

Thanks, will take a look soon.

PHP is an interesting choice of scripting language 🙂

[SaschaWillems]

It was a perfect match from my POV. If you want to change something about the generator script please let me know beforehand.

[Ybalrid]

I want to double-check that implicit conversion not working on a QVariant constructor that fails to compile on my end somehow. But I am not entirely sure I understand what is going on here. I'll take a look over the week-end most likely

[SaschaWillems]

I recently pushed a fix for one QVariant constructor introduced with a recent extension. The code compiles fine for on Android. If you see any problems on Android please let me know.

[TacoGuyAT]

Any update on this one? It's still really useful to have this app on lower versions of Android, especially for graphics developers working with a variety of devices.