Ask a question about Fragment switching and ButterKnife binding controls.

A Fragment base class, which is inherited by two Fragment respectively. When switching to the second Fragment, the control for the layout cannot be found. It should be unbound. How should I change this situation?
here are three classes and screenshots of error reports

public abstract class LazyFragment extends Fragment {

    private Unbinder mUnbinder;
    private boolean isLoaded;   //,,
    private View mContainerView;

    @Nullable
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        //
        if (getUserVisibleHint() && !isLoaded) {
            mContainerView = inflater.inflate(contentViewId(), container, false);
            isLoaded = true;
        } else {
            //
            mContainerView = inflater.inflate(R.layout.lazy_loading, container, false);
            mContainerView.setBackgroundColor(lazyFragmentBackground());
        }
        return mContainerView;
    }

    @Override
    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);
        mUnbinder = ButterKnife.bind(this, view);
        initView(savedInstanceState, view);
    }

    @Override
    public void setUserVisibleHint(boolean isVisibleToUser) {
        super.setUserVisibleHint(isVisibleToUser);
        if (isVisibleToUser && !isLoaded) {
            if (mContainerView instanceof ViewGroup) { //viewgroupview
                ViewGroup group = ((ViewGroup) mContainerView);
                group.removeAllViews();
                View view = LayoutInflater.from(getActivity()).inflate(contentViewId(), group, false);
                group.addView(view);
                super.onViewCreated(mContainerView, null);
                lazyLoad();
                isLoaded = true;
            }
        }
    }

    protected int lazyFragmentBackground() {
        return ContextCompat.getColor(getActivity(), R.color.lazy_fragment_background);
    }

    protected abstract void lazyLoad();

    public abstract void initView(Bundle savedInstanceState, View view);

    public abstract int contentViewId();

    @Override
    public void onDestroy() {
        super.onDestroy();
        if (mUnbinder != null) {
            mUnbinder.unbind();
            mUnbinder = null;
        }
    }
}

public class OneFragment extends LazyFragment {

    @BindView(R.id.tv_one)
    TextView mTextView;

    private static final String TAG = "OneFragment";

    @Override
    public int contentViewId() {
        Log.d(TAG, "5678contentViewId: 11111111111111");
        return R.layout.fragment_one;
    }

    @Override
    public void initView(Bundle savedInstanceState, View view) {
        Log.d(TAG, "5678initView: 11111111111111");
        mTextView.setText("aaaaaaaaaaaaa");
    }

    @Override
    protected void lazyLoad() {
        Log.d(TAG, "5678setUserVisibleHint: 111111111111");
    }
}

public class TwoFragment extends LazyFragment {

    @BindView(R.id.tv_two)
    TextView mTextView;

    private static final String TAG = "TwoFragment";

    @Override
    public int contentViewId() {
        Log.d(TAG, "5678contentViewId: 22222222222222222");
        return R.layout.fragment_two;
    }

    @Override
    public void initView(Bundle savedInstanceState, View view) {
        Log.d(TAG, "5678initView: 2222222222222222");
        mTextView.setText("bbbbbbbbbbbbbb");
    }

    @Override
    protected void lazyLoad() {
        Log.d(TAG, "5678setUserVisibleHint: 2222222222222");
    }

}

Android

Apr.02,2022