Java tutorial
//package com.java2s; /* * Copyright (c) 2017. Nuvolect LLC * * This program is free software: you can redistribute it and/or modify it under the terms of the GNU * General Public License as published by the Free Software Foundation, either version 3 of the License, * or (at your option) any later version. * * Contact legal@nuvolect.com for a less restrictive commercial license if you would like to use the * software without the GPLv3 restrictions. * * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without * even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along with this program. If not, * see <http://www.gnu.org/licenses/>. * */ import android.app.ActionBar; import android.widget.ArrayAdapter; public class Main { public static boolean setListNavigationCallbacks(ActionBar actionBar, ArrayAdapter<CharSequence> adapter, ActionBar.OnNavigationListener navigationListener) { if (actionBar != null) { actionBar.setListNavigationCallbacks(adapter, navigationListener); return true; } else { return false; } } }