eigener Costum arrayadapter wird nicht angezeigt

1lv1=(ListView)findViewById(R.id.list);
2 lv1.setAdapter(new costumListAdapter(this, R.layout.costum_list_item));
3 lv1.setOnItemClickListener(new OnItemClickListener() {

1import android.content.Context;
2import android.view.LayoutInflater;
3import android.view.View;
4import android.view.ViewGroup;
5import android.widget.ArrayAdapter;
6import android.widget.TextView;
7
8public class costumListAdapter extends ArrayAdapter<String>{
9 public costumListAdapter(Context context, int textViewResourceId)
10 {
11 super(context, textViewResourceId);
12
13 }
14
15 @Override
16 public View getView(int position, View convertView, ViewGroup parent)
17 {
18 View row=LayoutInflater.from(getContext()).inflate(R.layout.costum_list_item, parent, false);
19 TextView Datum =(TextView)row.findViewById(R.id.ListeDatum);
20 Datum.setText(Main.azDatum[position]);
21 TextView Stunde =(TextView)row.findViewById(R.id.ListeZeit);
22 Zeit.setText(Main.azZeit[position]);
23//.....noch andere textview´s//
24 return row;
25 }
26 }