Java tutorial
//package com.java2s; /* * Copyright (C) 2007 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ public class Main { /** * An utility function that returns the menu identifier for a particular * menu item. * * @param cls Class object of the class that handles the menu ite,. * @param identifier Menu identifier. * @return The integer corresponding to the menu item. */ public static int getMenuIdentifier(Class cls, String identifier) { int id = -1; try { Integer field = (Integer) cls.getDeclaredField(identifier).get(cls); id = field.intValue(); } catch (NoSuchFieldException e) { e.printStackTrace(); } catch (IllegalAccessException e) { e.printStackTrace(); } return id; } }