Android ListFragment使用

原創

2020-02-20 15:24

ListFragment繼承於Fragment：

package com.example.android_listfragment;

import java.util.ArrayList;
import java.util.List;

import android.app.FragmentManager;
import android.app.FragmentTransaction;
import android.app.ListFragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ListView;

public class LeftFragment extends ListFragment {
  private ArrayAdapter<String> adapter;
  private FragmentManager manager;
  private FragmentTransaction transaction;

  @Override
  public void onCreate(Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    super.onCreate(savedInstanceState);
    adapter = new ArrayAdapter<String>(getActivity(),
        android.R.layout.simple_list_item_1, getData());
    manager = getFragmentManager();
  }

  public List<String> getData() {
    List<String> list = new ArrayList<String>();
    for (int i = 0; i < 30; i++) {
      list.add("����" + i);// ģ�����µı���
    }
    return list;
  }

  @Override
  public View onCreateView(LayoutInflater inflater, ViewGroup container,
      Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    View view = inflater.inflate(R.layout.left, null);
    setListAdapter(adapter);
    adapter.notifyDataSetChanged();
    return view;
  }

  // ����û��ĵ����Ϊ
  @Override
  public void onListItemClick(ListView l, View v, int position, long id) {
    // TODO Auto-generated method stub
    super.onListItemClick(l, v, position, id);
    String item = adapter.getItem(position);
    //
    RightFragment fragment = new RightFragment();
    transaction = manager.beginTransaction();
    transaction.replace(R.id.right, fragment, "fragment");
    transaction.addToBackStack("fragment");
    Bundle bundle = new Bundle();
    bundle.putString("item", item);
    fragment.setArguments(bundle);
    transaction.commit();
  }

  @Override
  public void onPause() {
    // TODO Auto-generated method stub
    super.onPause();
  }
}

對應的xml文件，使用的時候只在

View view = inflater.inflate(R.layout.left, null);
這裏用到

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:orientation="vertical"
  android:paddingLeft="8dp"
  android:paddingRight="8dp" >

  <ListView
    android:id="@id/android:list"
    android:layout_width="match_parent"
    android:layout_height="0dp"
    android:layout_weight="1"
    android:background="#00FF00"
    android:drawSelectorOnTop="false" />

</LinearLayout>