子魚＠NET

使用 Apache Lucene 和 Solr 进行位置感知搜索

渤海子魚 — Tue, 23 Feb 2010 09:42:00 +0800

不管是通过支持 GPS 的智能手机查找最近的咖啡馆，还是通过社交站点查找附近的朋友，或是查看特定城市中运输某种商品的所有货车，越来越多的人和企业都使用位置感知的搜索服务。创建位置感知搜索服务通常属于昂贵的专用解决方案的一部分，并且一般由地理空间专家完成。不过，很流行的开源搜索库 Apache Lucene 和强大的 Lucene 搜索服务器 Apache Solr 最近添加了空间位置功能。Lucene 和 Solr 专家 Grant Ingersoll 将逐步向您介绍空间搜索的基础知识，并演示如何利用这些功能来增强您的下一个位置感知应用程序。

Google Maps API in Java ME

渤海子魚 — Fri, 22 Jan 2010 15:24:00 +0800

Here is a simple library to query Google Maps with the following features: geocode addresses to their geographic coordinates retrieve static images with given custom size, format and zoom
To see a live sample of this API, you can check here: Java ME Google Maps API sample MIDletContents[hide]1Get your own Google Maps API Key2Use a Proxy server to access Google Map services3Source code: GoogleMaps class4Utility method for map scrolling5Source code: sample usage
Get your own Googl

自己写的j2me下用的双缓冲消息队列类，不知对不对

渤海子魚 — Thu, 24 Dec 2009 12:05:00 +0800

import java.util.Vector; /*** * 双缓冲消息队列 * @author Donald * */ public class MessageQueueThread extends Thread { public int capacity=50; public boolean autoIncrement=false; private Vector readQueue=new Vector(capacity); private Vector writeQueue=new Vector(capacity); // private Object readLock=new Object(); private Object writeLock=new Object(); private MessageHandler handler; public void run(){ if(handler==null) return;

Google Bookmarks API Guide

渤海子魚 — Mon, 21 Dec 2009 10:18:00 +0800

转过来免得要看的时候又得翻FFUK

J2ME BUG 收集

渤海子魚 — Thu, 17 Dec 2009 15:47:00 +0800

2009年07月21日星期二 16:01
------------------------------------------------
n7610系列

手机屏幕：176*204
大量使用2.0的翻转方法很容易死机（最好用诺基亚自带的翻转方法）；

-------------------------------------------------
n78(n73 系列)
据我们老板的推测，打包的时候要注意NAME的奇偶个数。（偶数个字符有时候安装不了）
MOTO 小C系列
常见机型：C650
手机屏幕：128*128
游戏屏幕：128*116
非全屏屏幕：128*100
JAVA联网：CMWAP需要代理
字体大小：17*17，一行约7个中文字，内置一种字体，任何字体选项均为默认字体
MIDP：2.0
CLDC：1.0
JAVA单个容量限制：标准100K（实际无限制，小于手机本身内存）

UUID.java-J2ME 中javax.bluetooth里的UUID生成类

渤海子魚 — Wed, 25 Nov 2009 14:38:00 +0800

/* * * * Portions Copyright 2000-2007 Sun Microsystems, Inc. All Rights * Reserved. Use is subject to license terms. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License version * 2 only, as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANT

Nokia s60v5 j2me禁用softkeypad

渤海子魚 — Thu, 15 Oct 2009 10:10:00 +0800

j2me程序在s60v5上运行时会被自带的softkeypad占去半个屏幕，要禁用softkeypad需要在JAD文件中加入
Nokia-MIDlet-On-Screen-Keypad: no

附JAD and JAR manifest attributes：
Table: Nokia proprietary JAD/MANIFEST attributes
Attribute Name
Since S60 Edition
Description
Value
Nokia-MIDlet-Category
2nd Edition
Defines localized installation folder for MIDlet.
Category can be one of the following:
Application (all S60 1st Edition MIDlets use this)
Game
Nokia-MI

Android Animations 3D flip

渤海子魚 — Mon, 28 Sep 2009 10:59:00 +0800

Android Animations 3D flipLabels: 3D, Android, Animations, Camera, FrameLayoutIn this post we are going to look at how to create a 3D flip animation, with a FrameLayout. In the first few posts I've written on Android and animations we have only looked at the predefined animations supplied in the android.view.animations package. In fact we've only used the translate animation, but as I've mentioned before there are also rotate, scale and alpha animations. In this tutorial i want

Android transitions- slide in and slide out

渤海子魚 — Mon, 28 Sep 2009 10:46:00 +0800

I've recently been looking at the android platform and having some fun with writing some small apps. I wanted to do some interesting transitions between views, and decided to have a go at a transition were one view slides off to the left and the other sides in from the right and vice versa. Here's a video showing an example of the end result:To do this I created a simple project in eclipse using the Android plugins and made use of the ViewFlipper. So the first

Google Appengine 使用JSTL的问题

渤海子魚 — Wed, 08 Jul 2009 10:06:00 +0800

要在Google Appengine中使用JSTL 必须在JSP文件头上加上
<%@page isELIgnored="false" %>