ListenFragment

package com.example.test;

import android.app.Activity;
import android.os.Bundle;
import android.support.v4.app.ListFragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ListView;

public class listen_fragment extends ListFragment {
    private onSelectedListener mListener;

    public interface onSelectedListener {
        public void onSelected(int index);
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
        return inflater.inflate(R.layout.listen_fragment, container, false);
    }

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        ArrayAdapter<String> listenAdapter = new ArrayAdapter<String>(
                getActivity(), android.R.layout.simple_list_item_1,
                getResources().getStringArray(R.array.kategorien));
        setListAdapter(listenAdapter);
    }

    public void onAttach(Activity activity) {
        super.onAttach(activity);
        try {
            mListener = (onSelectedListener) activity;
        } catch (ClassCastException e) {
            throw new ClassCastException(activity.toString()
                    + "Muss OnSelectedListener implementieren.");
        }
    }

    @Override
    public void onListItemClick(ListView l, View v, int position, long id) {
        // TODO Auto-generated method stub
        super.onListItemClick(l, v, position, id);
    }
}