Java tutorial
//package com.java2s; /* * Copyright 2011 - AndroidQuery.com (tinyeeliu@gmail.com) * * 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. */ import java.lang.reflect.Method; public class Main { private static Object invokeMethod(Object handler, String callback, boolean fallback, Class<?>[] cls, Class<?>[] cls2, Object... params) throws Exception { if (handler == null || callback == null) return null; Method method = null; try { if (cls == null) cls = new Class[0]; method = handler.getClass().getMethod(callback, cls); return method.invoke(handler, params); } catch (NoSuchMethodException e) { //AQUtility.debug(e.getMessage()); } try { if (fallback) { if (cls2 == null) { method = handler.getClass().getMethod(callback); return method.invoke(handler); } else { method = handler.getClass().getMethod(callback, cls2); return method.invoke(handler, params); } } } catch (NoSuchMethodException e) { } return null; } }