You can:
1. host the data in the container activity and access to that from the fragment
2. use a singleton object / some class hosted in the application class
But bear in mind that whenever your process get killed you will loose the data in any case. If you want the data to persist across multiple process spawn you need to store it into sqllite / some kind of persistence.

You can:
1. host the data in the container activity and access to that from the fragment 2. use a singleton object / some class hosted in the application class
But bear in mind that whenever your process get killed you will loose the data in any case. If you want the data to persist across multiple process spawn you need to store it into sqllite / some kind of persistence.