fragment 中显示action button。

fragmentMenu.java

<menu xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:musictube="http://schemas.android.com/apk/res-auto" >

    <item
        android:id="@+id/action_play"
        android:icon="@drawable/btn_all_actionbar_play"
        android:orderInCategory="100"
        android:showAsAction="ifRoom|withText"
        android:title="@string/action_play"
        musictube:showAsAction="always|withText"/>

</menu>

	@Override
	public View onCreateView(LayoutInflater inflater, ViewGroup container,
			Bundle savedInstanceState) {
		setHasOptionsMenu(true);
		mContext = getActivity();
		initDb();

		View view = inflater.inflate(R.layout.frag_main_mymusic, null);
		init(view);
		return view;
	}
	
		@Override
	public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
		inflater.inflate(R.menu.mymusic_playlist, menu);
		super.onCreateOptionsMenu(menu, inflater);
	}

	@Override
	public boolean onOptionsItemSelected(MenuItem item) {
		if (item.getItemId() == R.id.action_add) {
			showNewPlaylistDialog();
			return true;
		}
		return super.onOptionsItemSelected(item);
	}