Is there any way to get variables from an activity group into a current activity, after it's created?

Yes essentially you're wanting to share a model object between two activities, and this has much to do with the structure of your program. See this post for more details on how that can be done.

Yes essentially you're wanting to share a model object between two activities, and this has much to do with the structure of your program. See this post for more details on how that can be done: Where should I put global methods and variables in an Android app?

That link was really useful. Thanks – NotACleverMan Apr 26 at 8:56.

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