I have a game app for iOS and iPadOS, which expects a full screen experience. I'd like to out of window resizing in iPadOS 26 as it negatively impacts the UI/UX of the app. I have UIRequiresFullScreen defined, but it doesn't seem to actually force full screen on iPadOS 26 anymore.
I also submitted feedback (FB18467555) for this issue. Sadly, considering the last time I submitted a feedback that got any response from Apple was early 2014, I doubt this will ever be addressed.
Almost two weeks with no response what so ever. What's even the point of a "Developer Preview" if nobody's ever going to respond to any feedback or questions developers have?
Never expect any response to any feedback you submit via Feedback Assistant. It will either get fixed or it won’t. I’ve filed well over a dozen beta bug reports in the last 4 weeks. 3 have been fixed with no feedback. I’m hoping the others get fixed in a future beta. And most of my reports are clearcut bugs that include a trivial app and instructions for reproducing the issue.
Also keep in mind, based on the feedback numbers, Apple is getting around 20,000 bug reports per day right now! That’s way too many to expect personal feedback.
As for this specific question, don’t expect Apple to reverse its decision on window resizing. Your best solution is to accept that “requires full screen” is going away. But you can set the window’s minimum size in the scene delegate so the user can’t make your window too small.
Considering macOS still suffers from bugs I reported back in 2014, I never expected anything. Maybe Apple shouldn't have completely dropped in-house QA if they can't handle 20K bug reports a day.
Anyway, back on topic – requiring games to support running in windowed mode in arbitrary sizes and aspect ratios simply doesn't make sense.
Games aren't apps, they aren't designed for multi-tasking, they're often designed for a very narrow range of aspect ratios. Despite having support for mice, keyboards, game controllers and a pen, the main and often only input method on an iPad is the touch screen, and games will often design their input systems around the assumptions that the app spans from one edge of the screen to another.
My game app specifically is useless when you use it windowed, it assumes you're holding the iPad with both hands, and use your two thumbs to to control it. When the app is windowed, so simply can't reach at least half of the controls.
Currently, the only "solution" is to "detect" the app running in windowed mode, pausing the game, and asking the user to put the app back into fullscreen, and that's terrible UX.
I'm curious about this as well. We have a CAD-like interface that is very dense and not conducive to multitasking. The documentation for the plist key doesn't mention anything about its deprecation, but it does not prevent windowing in the latest iPadOS beta. The related WWDC video says "Every app that supports multitasking now shows a handle in the bottom right corner." But in reality, it appears that there is no way to opt out of this.