Can we have a better way to get actvitiy instance in Fragment?

[jhwsx]

hi,

I integrate this architecture in my code, but I have found that it is not a good way to keep the reference of a activity like the following:

   @Override
    public void onAttach(Context context) {
        super.onAttach(context);
        if (context instanceof BaseActivity) {
            BaseActivity activity = (BaseActivity) context;
            mActivity = activity;
            activity.onFragmentAttached();
        }
    }

Because the reference may be finished, destroyed, which is not valid for use. In fact, I have to check whether the activity is valid all the time. which I really feel bothered. Can we find a better way? Thank you very much.