> You can disable internet for apps on Android. Open the app details in the settings (or by tap+holding the icon in the home screen), tap the data usage, and disable network access (cell access, wifi access, neither, or both).
I don't have these options on Android 9. All I can do is disable background access or allow access in data saver mode. The only way I can keep active apps offline on this phone is to put the phone in airplane mode when launching them
which is a much bigger pain than having an opt in.
Yeah, I thought it was a generic Android feature because both MIUI and my current ROM has it, but I'm not so sure anymore. I can't reproduce it in the stock emulator so I guess the feature either hasn't made it to upstream Android yet or it has been removed at some point
I don't have these options on Android 9. All I can do is disable background access or allow access in data saver mode. The only way I can keep active apps offline on this phone is to put the phone in airplane mode when launching them which is a much bigger pain than having an opt in.