通过xml加载菜单Menus

<MENU xmlns:android="http://schemas.android.com/apk/res/android">
 <GROUP android:id="@+id/myGroup">
  <ITEM android:id="@+id/New" android:title="New" android:orderInCategory="0"></ITEM>
  <ITEM android:id="@+id/Save" android:title="@string/save" android:orderInCategory="1" />
 </GROUP>
</MENU>

 /res/menu   menus.xml   android:orderInCategory="1"菜单的位置

@Override
public boolean onCreateOptionsMenu(Menu menu) {
	MenuInflater inflater = getMenuInflater();
	inflater.inflate(R.menu.menus, menu);
	return super.onCreateOptionsMenu(menu);
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
	switch (item.getItemId()) {
	case R.id.New:
		doSmth();
		break;
	case R.id.Save:
		doSmth();
		break;
	}
	return super.onOptionsItemSelected(item);
}

Group Category tag

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 <GROUP android:id="@+id/some_group_id " android:menuCategory="secondary"> </GROUP> 
 
Checkable Behavior tag
You can use it for group: 
 
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 <GROUP android:id="@+id/noncheckable_group" android:checkableBehavior="none"></GROUP> 
 
And also for menu item:
 
 
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 <ITEM android:id=".." android:title="…" android:checked="true" /> 
 
Submenu tag
 
 
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 <ITEM android:title="Submenu">  
 
  
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 <MENU>  
 
  
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 <ITEM… />  
 
  
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 </MENU>  
 
  
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</ITEM>
 
Menu Icon tag
 
 
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 <ITEM android:id=".. " android:icon="@drawable/yourImageFile" /> 
 
Menu Enabling/Disabling tag
 
 
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 <ITEM android:id=".. " android:icon="@drawable/yourImageFile" android:enabled="true" /> 
 
Menu Item Shortcut tag
 
 
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 <ITEM android:id="… " android:alphabeticShortcut="n" /> 
 
Menu Visibility tag
 
 
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 <ITEM android:id="… " android:visible="true" />