[expo-screen-orientation] Fix getting initial orientation.

[lukmccall]

Why

Fixes #8210.

How

• Initializes current screen orientation in the constructor of the EXScreenOrientationRegisty.
• Saves the last known orientation mask when the app is moved to the background and restores it when the app is moved to the foreground.

Test Plan

• bare-expo ✅
• client ✅

Changelog

• Fix ScreenOrientation. getOrientationAsync returning a wrong value when the application is starting.

[github-actions]

Native Component List for this branch is ready

[sjchmiela]

Correct me if I'm wrong — this sounds like a good fix to the "initial orientation" problem, but I'm a little bit afraid that setting the mask to more rigid only after the app is foregrounded… could it mean that when a user taps on an icon they can see the rotation being executed (if the device would have been rotated while the app was in background).

Leaving this behavior of disabling lock when the app backgrounds may be useful for brownfield apps (eg. RN app lock shouldn't automatically impact app after being hidden — or maybe it should?), but if this feature would cause the app to rotate in background or something maybe we should rethink this. Does it rotate in background?

[lukmccall]

could it mean that when a user taps on an icon they can see the rotation being executed (if the device would have been rotated while the app was in background).

Without this fix, the user could see the rotation in the background. Now, it'll freeze in the last set orientation. So, when you click on the home button, your app will be displayed in the correct orientation.

Leaving this behavior of disabling lock when the app backgrounds may be useful for brownfield apps (eg. RN app lock shouldn't automatically impact app after being hidden — or maybe it should?), but if this feature would cause the app to rotate in background or something maybe we should rethink this. Does it rotate in background?

No, it doesn't rotate in the background. It will work like other native apps.

[sjchmiela]

Don't forget to add a note about this change in behavior (breaking, imho) that now the module will keep the lock active when the app backgrounds!

[sjchmiela]

• changelog! 👏 👏 👏