14 ListFragment 代码案例

MainActivity.java:

package com.qf.day14_fragment_demo9_list;

import android.os.Bundle;

import android.app.Activity;

import android.view.Menu;

public class MainActivity extends Activity {

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

    }

    @Override

    public boolean onCreateOptionsMenu(Menu menu) {

        // Inflate the menu; this adds items to the action bar if it is present.

        getMenuInflater().inflate(R.menu.main, menu);

        return true;

    }

}

MyListFragment对象:

package com.qf.day14_fragment_demo9_list.fragment;

import java.util.ArrayList;

import java.util.List;

import com.qf.day14_fragment_demo9_list.R;

import android.annotation.SuppressLint;

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;

import android.widget.Toast;

@SuppressLint("NewApi")

public class MyListFragment extends ListFragment{

    @Override

    public View onCreateView(LayoutInflater inflater, ViewGroup container,

            Bundle savedInstanceState) {

        // TODO Auto-generated method stub

        View view = inflater.inflate(R.layout.layout, container, false);

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

        for(int i=0;i<20;i++){

            list.add("G20"+i);

        }

        ArrayAdapter<String> adapter =  new ArrayAdapter<String>

        (getActivity(), android.R.layout.simple_list_item_1, list);

        //设置数据源

        setListAdapter(adapter);

        return view;

    }

    //ListView 的点击事件

    @Override

    public void onListItemClick(ListView l, View v, int position, long id) {

        // TODO Auto-generated method stub

        super.onListItemClick(l, v, position, id);

        Toast.makeText(getActivity(), "===>"+position, 0).show();

    }

}

activity_main.xml:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:paddingBottom="@dimen/activity_vertical_margin"

    android:paddingLeft="@dimen/activity_horizontal_margin"

    android:paddingRight="@dimen/activity_horizontal_margin"

    android:paddingTop="@dimen/activity_vertical_margin"

    tools:context=".MainActivity" >

    <fragment

        android:id="@+id/ft"

        android:name="com.qf.day14_fragment_demo9_list.fragment.MyListFragment"

        android:layout_width="match_parent"

        android:layout_height="match_parent"

        />

</RelativeLayout>

listfragment的填充对象（layout.xml ）:

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

 android:orientation="vertical"

 android:layout_width="match_parent"

 android:layout_height="match_parent"

 android:paddingLeft="8dp"

 android:paddingRight="8dp">

<!--必须设定id为@id/android:list 这样可以在listfragme中直接设置setadapter-->

<ListView android:id="@id/android:list"

       android:layout_width="match_parent"

       android:layout_height="match_parent"

       android:background="#00FF00"

       android:layout_weight="1"

       android:drawSelectorOnTop="false"/>

<TextView android:id="@id/android:empty"

       android:layout_width="match_parent"

       android:layout_height="match_parent"

       android:background="#FF0000"

       android:text="No data"/>

</LinearLayout>

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14 ListFragment 代码案例

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