Which Android configuration change do I need to ignore to prevent activity destruction/creation when system language changes?

Question

My Vulkan-based game is based on NativeActivity and needs to avoid ALL activity destroy/recreate configuration changes because of the massive amount of load time it takes to do that. I currently have this defined for the activity in AndroidManifest.xml.

android:configChanges="colorMode|density|fontScale|fontWeightAdjustment|grammaticalGender|keyboard|keyboardHidden|layoutDirection|locale|orientation|screenLayout|screenSize|smallestScreenSize|uiMode">

But when the user changes system language my activity is destroyed and re-created. Is there some other (undocumented?) config change I need to declare? How do I prevent activity destruction/recreation for system language changes?

Gabe Sechan · Accepted Answer · 2024-11-05 19:21:45Z

0

That would be locale. I also wouldn't worry about it- nobody ever changes locale. Even if they're bilingual, they don't change the locale of the phone to swap languages- they just change the keyboard language. You're talking about a scenario that only a QA person would ever find.

answered Nov 5, 2024 at 19:21

Gabe Sechan

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3 Comments

Robert Over a year ago

I agree that users usually not change system locale, but since Android 13 there is the possibility to set app-specific locales, thus changing may happen if the app give the users a reason to change (may be a certain translation is so bad that users try a different language).

Gabe Sechan Over a year ago

Still not a common enough occurence to actually worry about. And if they do change it, they'll do so once. And the perf hit when it happens will be ignorable.

Bungles Over a year ago

Thanks. I even tried adding an override fun onConfigurationChanged() method but I never get a notification for locale, nor any of the other listed configuration change events.

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