ListView嵌套问题

coffeeroy2 2014-11-01 05:37:08

要实现ListView嵌套ListView的功能，每个Item都是一个ListView。于是想到用ListFragment来实现，结果运行出错了，而且全部是系统错误，我代码的错误一行没有。实在是没招了，求前辈指教！
以下是代码和错误：



package com.example.studylistfragment01;



import java.util.ArrayList;

import java.util.List;



import android.app.Activity;

import android.app.ListFragment;

import android.content.Context;

import android.os.Bundle;

import android.view.LayoutInflater;

import android.view.Menu;

import android.view.MenuItem;

import android.view.View;

import android.view.ViewGroup;

import android.widget.BaseAdapter;

import android.widget.ListView;



public class MainActivity extends Activity {

	private ListView lvMain;

	List<ListFragment> list = new ArrayList<ListFragment>();



	@Override

	protected void onCreate(Bundle savedInstanceState) {

		super.onCreate(savedInstanceState);

		setContentView(R.layout.activity_main);



		lvMain = (ListView) findViewById(R.id.listView_main);



		ListFragmentImpl listFragmentImpl1 = new ListFragmentImpl();

		ListFragmentImpl listFragmentImpl2 = new ListFragmentImpl();

		// ListFragmentSelf listFragmentSelf1 = new ListFragmentSelf();

		// ListFragmentSelf listFragmentSelf2 = new ListFragmentSelf();



		list.add(listFragmentImpl1);

		list.add(listFragmentImpl2);



		ListAdapter adapter = new ListAdapter(getBaseContext(), list);

		lvMain.setAdapter(adapter);



	}



	private class ListAdapter extends BaseAdapter {

		private LayoutInflater liMain;



		List<ListFragment> listFrag;



		public ListAdapter(Context context, List<ListFragment> listFrag) {

			// TODO Auto-generated constructor stub

			this.listFrag = listFrag;

			liMain = LayoutInflater.from(context);

		}



		@Override

		public int getCount() {

			// TODO Auto-generated method stub

			return listFrag.size();

		}



		@Override

		public Object getItem(int position) {

			// TODO Auto-generated method stub

			return listFrag.get(position);

		}



		@Override

		public long getItemId(int position) {

			// TODO Auto-generated method stub

			return 0;

		}



		@Override

		public View getView(int position, View convertView, ViewGroup parent) {

			// TODO Auto-generated method stub

			return null;

		}



	}



}

下面是ListFragment的代码



package com.example.studylistfragment01;



import android.annotation.SuppressLint;

import android.app.ListFragment;

import android.os.Bundle;

import android.util.Log;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

import android.widget.ArrayAdapter;

import android.widget.ListView;

import android.widget.Toast;



@SuppressLint("NewApi")

public class ListFragmentImpl extends ListFragment {

	private static final String TAG = "ListFragmentImpl";



	private ListView selfList;



	@SuppressLint("NewApi")

	String[] cities = { "Shenzhen", "Beijing", "Shanghai", "Guangzhou",

			"Wuhan", "Tianjing", "Changsha", "Xi'an", "Chongqing", "Guilin", };



	@Override

	public View onCreateView(LayoutInflater inflater, ViewGroup container,

			Bundle savedInstanceState) {

		Log.d(TAG, "onCreateView");

		return inflater.inflate(R.layout.list_fragment_impl, container, false);

	}



	@Override

	public void onCreate(Bundle savedInstanceState) {

		Log.d(TAG, "onCreate");

		super.onCreate(savedInstanceState);



		this.setListAdapter(new ArrayAdapter<String>(getActivity(),

				android.R.layout.simple_list_item_1, cities));

	}



	// public void onListItemClick(ListView parent, View v,

	// int position, long id) {

	// Log.d(TAG, "onListItemClick");

	// Toast.makeText(getActivity(),

	// "You have selected " + cities[position],

	// Toast.LENGTH_SHORT).show();

	// }

}