I want to store the application context in a static member, like this, so I can access it, the shared preferences, resources etc. everywhere.
My question is whether the context can change itself during the application lifetime, so the stored context won't work in a proper way and I can't access shared preferences etc.
Or is the context immutable, so I can use it without any doubt?
Thanks for you answers!
Application context stays unaltered during application lifetime.
Context is immutable during all work of app. And you can use it in static way to get resources, shared preferences, etc.
When you look at the accepted answer of this post, you will find that it is Ok to do this, but handle with care...
There are a couple of potential problems with this approach, though in a lot of circumstances (such as your example) it will work well.
In particular you should be careful when dealing with anything that deals with the GUI that requires a Context. For example, if you pass the application Context into the LayoutInflator you will get an Exception. Generally speaking, your approach is excellent: it's good practice to use an Activity's Context within that Activity, and the Application Context when passing a context beyond the scope of an Activity to avoid memory leaks.
Yep, you can use it with shared preferences and get resources etc.
getApplicationContext() function should do it. It shouldn't matter if its mutable.
