Question

在我的调试器中，我的自定义查询是在没有崩溃的情况下创建的。但是，从不调用getItemView，我不知道为什么：

public class CustAdapter extends ParseQueryAdapter {

public CustAdapter(Context context) {
    super(context, new ParseQueryAdapter.QueryFactory<MyData>() {

        public ParseQuery create() {
                ParseQuery custQuery = new ParseQuery("MyData");

                ParseUser currentUser = ParseUser.getCurrentUser();

                String selectedOption = MainActivity.getSelectedOption();

                custQuery.whereEqualTo("option", 
                                       selectedOption).whereExists("bookTitle");

                questionsQuery.orderByDescending("createdAt");

                return custQuery;
        } // end create()
    }); // end anon inner class and end super call
}


public static class ViewHolder {
    TextView titleTV;
    TextView detailsTV;
}


@Override
public View getItemView(ParseObject object, View v, ViewGroup parent) {
    ViewHolder holder;
    if (v == null) {
        v = View.inflate(getContext(), R.layout.book_item, null);
        super.getItemView(object, v, parent);
        holder = new ViewHolder();
        holder.titleTV = (TextView)v.findViewById(R.id.bTitle);
        holder.detailsTV = (TextView)v.findViewById(R.id.bDetails);
        v.setTag(holder);
    }
    else
        holder = (ViewHolder)v.getTag();

    holder.titleTV.setText(object.getString("bookTitle"));
    holder.detailsTV.setText(object.getString("bookDetails"));
    return v;
}
}

在我的片段中我做：CustAdapter adapter = new CustAdapter（getActivity（））; lv.setAdapter（适配器）。

Answer 1

代码是正确的，问题是将listview设置为在xml中不可见。使其在控制器中可见，显示云结果。令人惊讶的是，android studio仍然没有达到getItemView中if语句设置的断点！

为什么我的自定义ParseQueryAdapter中没有调用getItemView？

1 个答案: