Feature request: Adaptive tablet/foldable UI, optional One UI style, and more responsive widgets

Scope

Android

Problem or use case

I've been running LibrePods on a foldable and noticed quite a bit of empty space when unfolded.
To address this, I forked the repo to prototype an adaptive navigation/detail layout along with more responsive widgets: https://github.com/SkyFever/librepods

While working on it, I also drafted a few related improvements:

• Adaptive layouts: Tablet/foldable navigation & detail views
• Multi-device support: Per-device feature visibility and multiple connected AirPods in the navigation pane
• Responsive widgets: 2x1 / 2×2 / 3×2 battery and noise-control layouts

I'm curious what you think about this direction.

Widget Control

https://github.com/user-attachments/assets/aae0aebb-a31f-475b-bcdb-e0fe577c62a7

Adaptive Layouts

iOS	One UI	Material

Flex Mode

Vertical	Horizontal

Proposed solution

A few ideas that seemed promising while prototyping:

• Introduce an adaptive navigation/detail layout for larger screens such as tablets and foldables
• Keep the phone layout as the fallback for smaller screens
• Make the battery and noise-control widgets react more directly to the actual widget size
• Optionally expose per-device feature visibility and better handling for multiple connected AirPods

I don't think all of this needs to land at once, but it felt like a direction that could improve the UX quite a bit on larger Android devices.

Alternatives considered

The simplest alternative would be to keep the current phone-oriented layout and only make smaller targeted improvements, such as widget responsiveness or better handling of multiple devices.

That would still help, but I think an adaptive layout would provide the biggest usability improvement on foldables/tablets.

Review the linked fork and compare its adaptive navigation/detail layout, responsive widgets, and multi-device ideas with the current Android experience. Define a focused slice before starting; done should include the agreed tablet or foldable behavior while preserving the phone layout.