How can I return value from onResponse of Retrofit v2

Question

I want to return a string value from my function. But I do not know how to handle it? I tried final one-array solution but it did not work out.

Here is my code:

Answer 1

With retrofit2 is possible make synchronous call:

Callback callback = BaseService.getInstance().getUniqueCourt(Session.getToken(),courtID)
Response response = callback.execute();
...

however, synchronous requests trigger app crashes on Android 4.0 or newer. You’ll run into the NetworkOnMainThreadException error.

More information here.