add split screen support

[Sinofine]

With android's multi windows support, it's easy to split two activities into two windows, which benefits tablet users.

Screen shots:

also I provided multi chat windows option for windowed mode android (like samsung's DeX mode)

Those options are opt-in by default for compatibility.

reference: https://developer.android.com/guide/topics/large-screens/multi-window-support

[SpiritCroc]

Wow, that looks great! I'll try to test it in the coming weeks.

[SpiritCroc]

Just did some testing, initial thoughts:

Don't know what to expect from non-tablets, but if I enable tablet mode on my Android 11 phone and do the following:

• go to room list
• open a room
• press home
• open the app from recents
• press back

Then it gets me to my launcher instead back to the room list.
After that, whenever I re-open the app from recents, I get a blank screen, and I need to close the app with back or by killing it to get it working again by starting it from launcher.
The multiwindow setting doesn't make a difference for that matter.
Since you put the feature in labs, that's probably not a blocker, but it would be nice to have some narrower device requirements to detect if the feature will be useful on the particular device, and hide and force-disable it if that's not the case.

On my Android 11 tablet, it behaves the same as with my phone. Could it be a problem of my custom ROM not being configured properly to support these features, or is Android 11 too old? On a foldable emulator with Android 13, split screen works, but I haven't gotten the windowed mode to work, is there a system setting that I need to enable?

[Sinofine]

I've tested the feature on my samsung tab s7 with android 13, it works flawlessly; however using my phone (MIUI13, an custom ROM with android 12 inside) it doesn't work well (as multiple windows are not well supported on phone devices). Thus I might think that it's well to hide it in phone devices.

Furthermore, I'll test the feature with some more tablet devices, as in google's guide there are not major changes done after android 10.

[Sinofine]

my recent works.

[ThatOneCalculator]

Any update on this?

[Sinofine]

Any update on this?

recently I'm working on this approach

seems that google thinks it's better than multi window approach.