android之Fragment-ListFragment的实践（三）

先看效果图吧：

布局activity_main:

<LinearLayout 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:orientation="horizontal">       <fragment        android:layout_width="wrap_content"       android:layout_height="match_parent"       android:id="@+id/frag1"       android:name="com.example.listfragmentapp.FirstFragment"/>     <FrameLayout         android:layout_width="0dp"        android:layout_height="match_parent"        android:layout_weight="2"        android:id="@+id/layout"        android:background="#ff5433">            </FrameLayout>       <FrameLayout         android:layout_width="0dp"        android:layout_height="match_parent"        android:layout_weight="2"        android:id="@+id/third"        android:background="#567812">    </FrameLayout></LinearLayout>

MainActivity什么东西都没写

FirstFragment：

package com.example.listfragmentapp;import android.app.Fragment;import android.app.FragmentManager;import android.app.FragmentTransaction;import android.os.Bundle;import android.view.LayoutInflater;import android.view.View;import android.view.View.OnClickListener;import android.view.ViewGroup;import android.widget.Button;public class FirstFragment extends Fragment{private FragmentManager fm; @Overridepublic View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {// TODO Auto-generated method stubView view=inflater.inflate(R.layout.first_frag, container, false);Button btn=(Button) view.findViewById(R.id.btn);btn.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {// TODO Auto-generated method stub//第一步：获取FragmentManger对象fm=getFragmentManager();//第二步：开启事务FragmentTransaction ft=fm.beginTransaction();//第三步：操作Fragment（添加，替换，删除）   //第三个参数标签名，起到标识作用SecondTest fragment=new SecondTest();ft.add(R.id.layout,fragment,"second");ft.addToBackStack("second");//第四步：提交事务ft.commit();}});return view;}}

SecondTest继承了ListFragment

package com.example.listfragmentapp;import android.app.FragmentManager;import android.app.FragmentTransaction;import android.app.ListFragment;import android.os.Bundle;import android.text.Editable.Factory;import android.view.View;import android.widget.ArrayAdapter;import android.widget.ListView;import android.widget.TextView;import android.widget.Toast;public class SecondTest extends ListFragment{ThirdFragment fragment;TextView tv;private FragmentManager fm;@Overridepublic void onCreate(Bundle savedInstanceState) {// TODO Auto-generated method stubsuper.onCreate(savedInstanceState);View thirdFragment=getActivity().findViewById(R.layout.two_frag);fm=getFragmentManager();String[] data=new String[30];for(int i=0;i<20;i++)data[i]="hello"+i;ArrayAdapter<String>adapter=new ArrayAdapter<String>(getActivity(),android.R.layout.simple_list_item_1,data);setListAdapter(adapter);}@Overridepublic void onListItemClick(ListView l, View v, int position, long id) {// TODO Auto-generated method stubsuper.onListItemClick(l, v, position, id);Toast.makeText(getActivity(), "您选择了:"+l.getAdapter().getItem(position), 0).show();fm=getFragmentManager();FragmentTransaction ft = fm.beginTransaction();ThirdFragment frag=new ThirdFragment();Bundle bundle=new Bundle();String msg=(String) l.getAdapter().getItem(position);bundle.putString("111", msg);frag.setArguments(bundle);ft.replace(R.id.third,frag,"ddd");ft.addToBackStack("ddd");ft.commit();}}

ThirdFragment：

package com.example.listfragmentapp;import android.app.Fragment;import android.os.Bundle;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.TextView;public class ThirdFragment extends Fragment{private TextView tv;@Overridepublic View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {// TODO Auto-generated method stubView view=inflater.inflate(R.layout.third_frag, container, false);tv=(TextView)view.findViewById(R.id.tv);Bundle bundle=getArguments();String msg=bundle.getString("111");tv.setText(msg);return view;}}

有想要源码的可以：
源码下载链接

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