[Android 15] Add edge-to-edge support

[wmontwe]

We want to enable edge-to-edge support for Android 15 compatibility.

See Behavior changes: Edge-to-edge enforcement  |  Android Developers

Tasks:

1. Fix edge-to-edge Jetpack Compose implementation for Android 15
2. Add edge-to-edge support for legacy UI
3. Check all legacy UI screens for issues
4. Fix legacy UI issues

Resources:

• Display content edge-to-edge in your app  |  Views  |  Android Developers
• Display content edge-to-edge in your app and handle window insets in Compose  |  Jetpack Compose  |  Android Developers

[cketti]

Proposed strategy for implementing edge-to-edge:

• Add horizontal component of "safeDrawing" as padding to all screens. (We currently don't have any screens where we want to stretch to the sides when there's a display cutout on the right or left.)
• On screens with fixed header, e.g. a toolbar:
  • Add top component of "safeDrawing" to header's top padding.
• On screens with fixed footer:
  • Add bottom component of "safeDrawing" to footer's bottom padding.
• On screens without fixed footer:
  • If there's no fixed header, add top component of "safeDrawing" to the top padding of the (scrolling) content
  • Add bottom component of "safeDrawing" to the bottom padding of the (scrolling) content

[wmontwe]

I assume you're talking about WindowInsets.safeDrawing() and the suggestion is meant for XML layouts, right?

[cketti]

Yes, I was working off the documentation for WindowInsets.safeDrawing(). I assumed the mechanism used for XML-based layouts has the same concept of "safe drawing" insets.

I tried to word it so the approach can be used for both Compose and XML-based layouts. Do you think the strategy on a high level needs to be different depending on the UI framework?