自定义列表适配器类中的错误

Question

    class viewticket extends AsyncTask<String, Void, String> {

        @Override
        protected void onPreExecute() {
            super.onPreExecute();
            pdialog = new ProgressDialog(UserLogedIn.this);
            pdialog.setMessage("Loading....");
            pdialog.setIndeterminate(false);
            pdialog.setCancelable(false);
            pdialog.show();
        }

        @Override
        protected String doInBackground(String... params)  {
            List<NameValuePair> param = new ArrayList<NameValuePair>();
            param.add(new BasicNameValuePair("userid", u_id));


            ServiceHandler sh = new ServiceHandler();

            // Making a request to url and getting response
            String jsonStr = sh.makeServiceCall(URLMyTicket, ServiceHandler.POST, param);
            Log.d("Response: ", "> " + jsonStr);
            if (jsonStr != null)

            {
                try {

                    contacts = new JSONArray(jsonStr);
                    int a=contacts.length();
                    Log.v(TAG,""+a);
                    String[] id = new String[contacts.length()];
                    String[] prob = new String[contacts.length()];
                    String[] desc = new String[contacts.length()];
                    for (int i = 0; i < contacts.length(); i++) {
                        JSONObject c = contacts.getJSONObject(i);

                        String aa = c.getString(TAG_ID);
                        String bb = c.getString(TAG_PROB);
                        String cc = c.getString(TAG_DESC);

                        Log.v(TAG, "TAG_ID" + aa);
                        Log.v(TAG,"TAGPROB"+bb);
                        Log.v(TAG,"TAGDESC"+cc);
                        id[i] = aa;
                        prob[i]=bb;
                        desc[i]=cc;
                        Log.v(TAG, "aaaaa" + id[i]);
                        Log.v(TAG,"bbbbb"+prob[i]);
                        Log.v(TAG,"ccc"+desc[i]);
                        Ticket_adapter adapter=new Ticket_adapter(this,id,prob,desc);
                        lv.setAdapter(adapter);
                    }
                } catch (JSONException e) {
                  System.out.print("hiiiiiiiiiiii" );
                    e.printStackTrace();
                }
            }
            if(jsonStr==null)
            {
               // Toast.makeText(UserLogedIn.this, "hiiiiiiiiiiiiiiiiiiiii", Toast.LENGTH_SHORT).show();
            }
            return null;
        }
        @Override
        protected void onPostExecute(String  result) {
            super.onPostExecute(result);
            // Dismiss the progress dialog
            pdialog.hide();
            pdialog.dismiss();
        }

    }

    public class Ticket_adapter extends ArrayAdapter<String> {
    UserLogedIn.viewticket context;
    String[] id;
    String[] prob;
    String[] desc;


    public Ticket_adapter(UserLogedIn.viewticket context, String[] id,String[] prob,String[] desc) {
        super(context, R.id.list_item,id);//error cannot resolve method super
        this.context=context;
        this.id=id;
        this.prob=prob;
        this.desc=desc;
    }


    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        LayoutInflater inflater=context.getLayoutInflater();
        View rowView=inflater.inflate(R.layout.my_list, null, true);

        TextView idtxt=(TextView)convertView.findViewById(R.id.uid);
        TextView probtxt=(TextView)convertView.findViewById(R.id.prob);
        TextView desctxt=(TextView)convertView.findViewById(R.id.ticket);

        idtxt.setText(id[position]);
        probtxt.setText(prob[position]);
        desctxt.setText(desc[position]);


        return convertView;

    }
}

错误：

错误：（21,9）错误：找不到适合ArrayAdapter（UserLogedIn.ViewTicket,int,String[])的构造函数ArrayAdapter.ArrayAdapter（Context,int,int）不适用（参数不匹配；UserLogedIn.ViewTicket无法转换为上下文）构造函数ArrayAdapter.ArrayAdapter（Context,int,String[])不适用（参数不匹配；UserLogedIn.ViewTicket无法转换为上下文）构造函数ArrayAdapter.ArrayAdapter（Context,int,String[])

Answer 1

1）需要在for循环之外创建适配器。

2）如果要在自定义适配器构造函数中调用super()，则需要传递一个上下文，而不是名为Context的对象。

因为从错误来看，userlogedin.viewticket不是上下文。