51 Android fragment actionbar 中 Menu 界面管理
strings.xml 文件代码
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="app_name">Android_fragment_menu</string>
<string name="action_settings">Settings</string>
<string name="hello_world">Hello world!</string>
<string name="sys">系统管理</string>
<string name="use">用户管理</string>
<string name="product">产品管理</string>
</resources>
menu文件夹下 main.xml
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
<item
android:id="@+id/sys"
android:orderInCategory="100"
android:showAsAction="always"
android:title="@string/sys"/>
<item
android:id="@+id/use"
android:orderInCategory="100"
android:showAsAction="always"
android:title="@string/use"/>
<item
android:id="@+id/product"
android:orderInCategory="100"
android:showAsAction="always"
android:title="@string/product"/>
</menu>
sys.xml (加载到 fragment)
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="app_name">Android_fragment_menu</string>
<string name="action_settings">Settings</string>
<string name="hello_world">Hello world!</string>
<string name="sys">系统管理</string>
<string name="use">用户管理</string>
<string name="product">产品管理</string>
</resources>
use.xml (加载到 fragment)
<?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" >
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="用户管理界面"
android:textSize="30sp"
/>
</LinearLayout>
produce.xml (加载到Listfragment)
<?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">
<!-- 注意 id 的使用 -->
<ListView android:id="@id/android:list"
android:layout_width="match_parent"
android:layout_height="0dp"
android:background="#00FF00"
android:layout_weight="1"
android:drawSelectorOnTop="false"/>
</LinearLayout>
activity_main.xml 文件代码
<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"
android:id="@+id/main"
>
</RelativeLayout>
SysFragment extends Fragment
SysFragment.java 代码
package com.example.android_fragment_menu;
import android.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
public class SysFragment extends Fragment {
@Override
public void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// TODO Auto-generated method stub
View view =inflater.inflate(R.layout.sys, null);
return view;
}
@Override
public void onPause() {
// TODO Auto-generated method stub
super.onPause();
}
}
UseFragment extends Fragment
UseFragment.java 代码
package com.example.android_fragment_menu;
import android.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
public class UseFragment extends Fragment {
@Override
public void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// TODO Auto-generated method stub
View view=inflater.inflate(R.layout.use, null);
return view;
}
@Override
public void onPause() {
// TODO Auto-generated method stub
super.onPause();
}
}
ProducFragment extends ListFragment
ProducFragment.java代码
package com.example.android_fragment_menu;
import java.util.ArrayList;
import java.util.List;
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 ProducFragment extends ListFragment {
private ArrayAdapter<String> adapter=null;
private List<String> list;
/**
* 数据的初始化
* @return
*/
public List<String> getData()
{
List<String> list=new ArrayList<String>();
for(int i=0;i<30;i++)
{
list.add("Item"+i);
}
return list;
}
@Override
public void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// TODO Auto-generated method stub
View view=inflater.inflate(R.layout.producelist, null);
adapter=new ArrayAdapter<String>(getActivity(), android.R.layout.simple_list_item_1, getData());
setListAdapter(adapter);
return view;
}
@Override
public void onPause() {
// TODO Auto-generated method stub
super.onPause();
}
@Override
public void onListItemClick(ListView l, View v, int position, long id) {
// TODO Auto-generated method stub
super.onListItemClick(l, v, position, id);
}
}
MainActivity.java 代码
package com.example.android_fragment_menu;
import android.os.Bundle;
import android.app.Activity;
import android.app.FragmentManager;
import android.app.FragmentTransaction;
import android.view.Menu;
import android.view.MenuItem;
public class MainActivity extends Activity {
private FragmentManager manager;
private FragmentTransaction transaction;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
manager=getFragmentManager();
}
@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;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// TODO Auto-generated method stub
transaction=manager.beginTransaction();
switch (item.getItemId()) {
case R.id.sys:
SysFragment sysFragment=new SysFragment();
//用replace
transaction.replace(R.id.main, sysFragment, "sysFragment");
transaction.addToBackStack("sysFragment");//加入回退栈
break;
case R.id.use:
UseFragment useFragment=new UseFragment();
transaction.replace(R.id.main, useFragment, "useFragment");
transaction.addToBackStack("useFragment");
break;
case R.id.product:
ProducFragment producFragment=new ProducFragment();
transaction.replace(R.id.main, producFragment, "producFragment");
transaction.addToBackStack("producFragment");
break;
default:
break;
}
transaction.commit();
return super.onOptionsItemSelected(item);
}
}
