Question

我为微调器创建了一个自定义适配器。微调器需要显示列表中的名称。以下是我的代码：

empNameList = new ArrayList<HashMap<String, String>>();
                JSONArray jsonArray = response.getJSONArray("Salon");
                for (int i = 0; i < jsonArray.length(); i++) {
                    JSONObject jsonObject = jsonArray.getJSONObject(i);
                    String empName = jsonObject.getString("employeename");
                    String empId = jsonObject.getString("employee_id");
                    HashMap<String, String> hashMap = new HashMap<String, String>();
                    hashMap.put("empId", empId);
                    hashMap.put("empName", empName);
                    empNameList.add(hashMap);
                }    
employeeAdapter = new EmployeeAdapter(getApplicationContext(), R.layout.service_list, empNameList);
                    employeeAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
                    spinner.setAdapter(employeeAdapter);

这是我的Adapter类：

public class EmployeeAdapter extends ArrayAdapter<HashMap<String, String>> {
ArrayList<HashMap<String, String>> arrayList = new ArrayList<HashMap<String, String>>();
Context context;
int layoutResourceId;
HashMap<String, String> hashmap;

public EmployeeAdapter(Context context, int layoutResourceId, ArrayList<HashMap<String, String>> arrayList) {
    super(context, layoutResourceId, arrayList);
    this.arrayList = arrayList;
    this.context = context;
    this.layoutResourceId = layoutResourceId;

}

@Override
public View getView(int position, View convertView, ViewGroup parrent) {
    View view = convertView;
    final ViewHolder holder;

    if (view == null) {
        LayoutInflater layoutInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        view = layoutInflater.inflate(layoutResourceId, parrent, false);
        holder = new ViewHolder();
        holder.textView42 = (TextView) view.findViewById(R.id.textView42);
        view.setTag(holder);
    } else {

        holder = (ViewHolder) view.getTag();
    }
    if (position % 2 == 0) {
        view.setBackgroundColor(context.getResources().getColor(R.color.pink));
    } else {
        view.setBackgroundColor(Color.WHITE);
    }
    hashmap = new HashMap<String, String>();
    hashmap = arrayList.get(position);
    System.out.println("empName = " + hashmap.get("empName"));
    holder.textView42.setText(hashmap.get("empName"));
    return view;
}

static class ViewHolder {
    TextView textView42;
}

Spinner正在显示hashmap，而不是empNameList的名称。任何帮助都将不胜感激。

Answer 1

只需覆盖适配器类中的以下方法。

public View getDropDownView(int position, View convertView, ViewGroup parent) {
    LayoutInflater layoutInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    View view = layoutInflater.inflate(layoutResourceId, parent, false);
    // View row = inflater.inflate(yourRowlayout, parent,false);
    TextView make = (TextView) view.findViewById(R.id.textviewname);
    view.setBackgroundColor(Color.GRAY);
    make.setText(arrayList.get(position).get("empName"));
    return view;
}

Spinner没有显示正确的数据

1 个答案: