Java tutorial
//package com.java2s; /** * Copyright (C) 2012 Iordan Iordanov * Copyright (C) 2010 Michael A. MacDonald * * This 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 2 of the License, or * (at your option) any later version. * * This software 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 software; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, * USA. */ import java.lang.reflect.Field; import android.content.Context; import android.view.ViewConfiguration; public class Main { /** * Forces the appearance of a menu in the given context. * @param ctx */ public static void showMenu(Context ctx) { try { ViewConfiguration config = ViewConfiguration.get(ctx); Field menuKeyField = ViewConfiguration.class.getDeclaredField("sHasPermanentMenuKey"); if (menuKeyField != null) { menuKeyField.setAccessible(true); menuKeyField.setBoolean(config, false); } } catch (Exception e) { } } }