Android Listview更改确保位置的颜色

public class CustomAdapter extends BaseAdapter {
    private List<String> dataList;
    private Context context;

    public CustomAdapter(Context context, List<String> dataList) {
        this.context = context;
        this.dataList = dataList;
    }

    @Override
    public int getCount() {
        return dataList.size();
    }

    @Override
    public Object getItem(int position) {
        return dataList.get(position);
    }

    @Override
    public long getItemId(int position) {
        return position;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        if (convertView == null) {
            LayoutInflater inflater = LayoutInflater.from(context);
            convertView = inflater.inflate(R.layout.list_item, parent, false);
        }

        String itemData = dataList.get(position);
        TextView textView = convertView.findViewById(R.id.text_view);
        textView.setText(itemData);

        // 设置不同位置的背景颜色
        if (position % 2 == 0) {
            convertView.setBackgroundColor(Color.parseColor("#ECECEC"));
        } else {
            convertView.setBackgroundColor(Color.parseColor("#FFFFFF"));
        }

        return convertView;
    }
}

List<String> dataList = new ArrayList<>();
// 添加数据到dataList

CustomAdapter adapter = new CustomAdapter(this, dataList);
ListView listView = findViewById(R.id.list_view);
listView.setAdapter(adapter);