Weakreference get() method how safe is it? (Android, asynctask)

Question

I am making an Android mobile app. I have a WeakReference to my Activity in the AsyncTask to ensure that it can be garbage collected.

When onPostExecute() g

Answer 1

It's safe!
As soon as you assign the result of get() to a variable, you have a strong reference again which blocks gargbage collection for this object as long as the new reference exists.
Of course, after this assignment you need to check if activity is null.