使用“工具”时，“这个”包含什么？

Question

I am creating an interface in the android studio. I am doing the onClick functionality for my RecyclerView .

Here you can see my HomeFragment , which contains the RecyclerView and thus implements the method onEventListener .

public class HomeFragment extends Fragment implements HomeAdapter.onEventListener

I also had to change my constructor in the adapter.

  public HomeAdapter(Activity ctx, ArrayList<EventPost> Arr, onEventListener onEventListener) {
            this.ctx = ctx;
            this.items = Arr;
            this.mOnEventListener = onEventListener;
        }

For this reason, in my HomeFragment.java I had to change the arguments when initializing the HomeAdapter .

homeAdapter = new HomeAdapter(getActivity(),event_list, this);

Here I was able to use this, to pass the onEventListener . However, I also initialize the HomeAdapter later in the app, but this initialization lies in the method, which has "this" assigned to different things than the one before. For this reason, it does not work with this and requires onEventListener type of argument.

How would I change "this" in the second initialization, so that it works globally?

Answer 1

Try passing this with classname like onEventListener.this instead of "this".

homeAdapter = new HomeAdapter(getActivity(),event_list, onEventListener.this);

Answer 2

use HomeFragment.this in your second method.

homeAdapter = new HomeAdapter(getActivity(),event_list, HomeFragment.this);