单击新片段后是否单击另一个片段？

Question

can anyone point me in the right direction and tell me what I'm doing wrong?

I have here a fragment with a button. When the button is pressed, it needs to replace the current fragment and load a new one. I've figured how to go from Fragment to Activity, and Activity to Fragment, just not Fragment to Fragment. I'm aware this question has been asked a few times but I'm just so new I couldn't figure it out myself.

public class FragmentName extends Fragment {

    public FragmentName() {
        // Required empty public constructor

    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        View rootView = inflater.inflate(R.layout.fragment_name, container, false);

        Button ID = (Button) rootView.findViewById(R.id.buttonID);
        ID.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                FragmentName NAME = new FragmentName();
                fragmentTransaction.replace(R.id.main_container, NAME);
                fragmentTransaction.commit();
            }
        });
        return rootView;
    }
}

Answer 1

I think you are not initialising the FragmentManager. Without FragmentManager it is not possible to replace,update,create any fragment. Beacuse it is responsible replace or deleting any fragment. Hope this will help.

public class FragmentName extends Fragment {

public FragmentName() {
    // Required empty public constructor

}

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    // Inflate the layout for this fragment
    View rootView = inflater.inflate(R.layout.fragment_name, container, false);

    Button ID = (Button) rootView.findViewById(R.id.buttonID);
    ID.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
        FragmentManager fragmentManager = getFragmentManager();
        FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
        FragmentName NAME = new FragmentName();
      fragmentTransaction.replace(R.id.main_container, NAME);
        fragmentTransaction.commit();

        }
    });
    return rootView;
  }
}