我正在尝试制作一个带有制表符的程序，每个制表符代表一个片段。在第二个片段（AddFragment）中，我想制作一个列表来显示我在EditText中输入的字符串。但是它给了我上面的错误。更多详细信息：

error: cannot infer type arguments for ArrayAdapter<>
itemsAdapter = new ArrayAdapter<>(AddFragment.this, android.R.layout.simple_list_item_1, items);

AddFragment类别的程式码：

public class AddFragment extends Fragment {
EditText etPlan;
EditText etExercise;
ImageButton imageButton;
ArrayList<String> items;
ArrayAdapter<String> itemsAdapter;
ListView listView;

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {

    return inflater.inflate(R.layout.fragment_add, container, false);
}

@Override
public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {

    findViews();
    super.onViewCreated(view, savedInstanceState);
}

private void findViews() {
    listView = getView().findViewById(R.id.listView);
    etPlan = getView().findViewById(R.id.etPlan);
    etExercise = getView().findViewById(R.id.etExercise);
    imageButton = getView().findViewById(R.id.imageButton);
    imageButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            items = new ArrayList<>();
            itemsAdapter = new ArrayAdapter<>(AddFragment.this, android.R.layout.simple_list_item_1, items);
            listView.setAdapter(itemsAdapter);
            setUpListViewListener();
        }

        private void setUpListViewListener() {
            listView.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
                @Override
                public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {
                    Context context = getContext();
                    Toast.makeText(context, "Item Removed", Toast.LENGTH_LONG).show();
                    items.remove(position);
                    itemsAdapter.notifyDataSetChanged();
                    return true;
                }
            });
        }
    });
}

}