我试图显示从列表视图中的json数组的值。但它显示了所有列表视图按钮中的重复条目。这里是我的代码Android Listview显示重复条目
MenuFragment:
JSONObject json = jParser.makeHttpRequest(CommonUtilities.SERVERURL_GET_MENUS, "GET", params);
SUCCESS = json.getString(TAG_SUCCESS);
if (SUCCESS.equalsIgnoreCase("false")) {
JSONArray jsonarrays = json.getJSONArray("sub_menus");
HashMap<String, String> sb = new HashMap<String, String>();
for (int k = 0; k < jsonarrays.length(); k++) {
JSONObject main_menus = jsonarrays.getJSONObject(k);
SUB_MENU_ID = main_menus.getString("sub_menu_id");
SUB_MENU_NAME = main_menus.getString("sub_menu_name");
sb.put(SUB_MENU_ID, SUB_MENU_NAME);
submenus.add(sb);
} }
protected void onPostExecute(String result) {
try {
submenuadapter=new SubmenuCategoryAdapter(submenus,getActivity());
sb_list.setAdapter(submenuadapter);
}
SubmenuCategoryAdapter:
适配器包含按钮显示列表值。
public class SubmenuCategoryAdapter extends BaseAdapter {
ArrayList<HashMap<String, String>> mainmenu;
HashMap<String, String> mainmenumap = new HashMap<String, String>();
Context con;
public SubmenuCategoryAdapter(ArrayList<HashMap<String, String>> mainmenu, Context con) {
super();
this.mainmenu = mainmenu;
this.con = con;
}
@Override
public int getCount() {
return mainmenu.size();
}
@Override
public Object getItem(int position) {
return position;
}
@Override
public long getItemId(int position) {
return position;
}
@SuppressLint("ViewHolder")
@Override
public View getView(int position, View convertView, ViewGroup parent) {
final Holder holder = new Holder();
LayoutInflater layoutInflater = (LayoutInflater) con.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
mainmenumap = mainmenu.get(position);
View submenuview = layoutInflater.inflate(R.layout.submenu_button, null);
holder.submenu_btn=(Button)submenuview.findViewById(R.id.submenu_layout_button);
String btn_name=mainmenu.get(position).toString();
holder.submenu_btn.setText(btn_name);
return submenuview;
}
public class Holder {
Button submenu_btn;
}
}
你可以发布你的** SubmenuCategoryAdapter **类吗? –
你的jsonarrays.length()的值是多少?使用Log进行检查。 – user5716019