Caiwangqin's blog

Video of founder of Alibaba

Mon, 09 Apr 2012 09:30:22 +0800

Some tips for using PhoneGap & Sencha Touch 2 build mobile app

Tue, 27 Mar 2012 16:52:16 +0800

We recently build an HTML5 mobile app for website client, will deploy to apple store and android play store, here is some tips for develop mobile app with Sencha Touch 2 and PhoneGap 1.4.1.

Sencha Touch2 is good framework to build HTML5 mobile app.
PhoneGap is good to deploy app to ios and android, even windows phone, symbian, blackberry, webos and bada.
Do not trust android simulator, sometimes the App works fine in ios simulator and iPhone, but doesn't work in Android phone.
Android browser do not support JSON.parse() call that had a null parameter.
Android 2.x doesn't support SVG, that means you can not use Google Charts API in android app, even it running good in ios. but Google Charts Image works.
Sencha Touch beta 2 build doesn't work for me on mac os x 10.7.3.
You will need different device to test deploy to different platform.

CHAIHUO MAKER SPACE

Wed, 08 Feb 2012 10:43:39 +0800

There are something you can't missing in Nanshan district of Shenzhen China, the one of them is CHAIHUO MAKER SPACE (柴火创客空间). if you want to be entrepreneur for your own Start-up, you could meet some people interesting in your project there, find collaborators, marketer working together get the project done. Thanks Michelini get me there yesterday night, he is one guy speaking English but love to use Weibo, has a tablet translator to read Chinese, funny.

Yesterday was the first SZ Team Startup Tuesday Meetings of Chinese Dragon Year, Michelini want to make the meet up weekly, i hope this will make Shenzhen start-up community active. Haegwan Kim bring his startup platform Lifecraft, this platform focus on collaboration for beginning start-up projects, to help entrepreneur get contributors work together, and feedback. i thought it's a stackoverflow and basecamp mashup, but have CONTEXT on user profile, let entrepreneur easy to find contributor to get wishes done.

CHAIHUO has lot's of event allow free to join, another meeting organized by Shenzhen DIY Lab (深圳DIY实验室) every Thursday. Free party, Open source! It worse to go when you have ideas and live in Shenzhen.

Google Reader shared items [2012-02-04]

Sat, 04 Feb 2012 00:00:00 +0800

一道估算题引发的思考【人人都是产品经理：9105】
上个月在逛银泰的时候，随便想了一道题目——估算一家商场，大促时一天的营业额有多少？结果有几位同学回答了，感觉各种思路都挺有意思，不妨展开聊聊。思路1：以收银台为关键估算对象，通过收银台数量，每人支付所需时间，客单价，收银台负载计算。案例——SEVEN的..

Happy new year!

Sat, 31 Dec 2011 10:55:07 +0800

Time is fast, 2011 is gone, 2012 is coming. In the past year, i spent more and more time on Twitter, Path and other social apps with iPhone, less time on Blogger, but i still remember this is my blog, my friends and readers may expect something here, so i come back here say Happy new year to everyone.

There's one thing i'm proud to mention we've done in 2011, It's Jetlun cloud portal, an Smart Energy and Home automation system, here is a screenshot for dashboard.

Uploaded with Skitch!

I hope 2012 is not the end of world!

Try iPhone version Blogger

Thu, 17 Nov 2011 15:01:34 +0800

It's good to use iPhone version Blogger post photo blog, and have location in blog post. Will Blogger's future be micro blog like Tumblr or Twitter? Not easy to input long text on iPhone, i'm glad to see the dead GWF doesn't block it so far.

Google Reader shared items [2011-10-20]

Thu, 20 Oct 2011 00:00:00 +0800

有道词典发布Mac版，支持主流浏览器屏幕取词
今天有道词典在他们官方微博上宣布，他们发布了有道词典Mac版，相比于其他Mac系统下的词典，有道词典最大的特色在于体积小、支持网络释义。有道词典Mac版体积只有1.5M，支持屏幕取词、鼠标取词等，涵盖200个学科领域，60万专业词汇，支持中英日韩法五国语言全文互译。..

Google Reader shared items [2011-10-18]

Tue, 18 Oct 2011 00:00:00 +0800

创始人和VC的推荐：企业家应该读读这21本书
过去几年，BUSINESSINSIDER对各创始人和VC进行了调查，让他们推荐对自己的职业生涯产生极大影响的书。从马尔科姆·格拉德威尔（Malcolm Gladwell）的《眨眼之间：不假思索的思考力量（Blink）》到罗伯特·波西格（Robert Pirsig’）的《禅与摩托车维修艺术：人类寻找..

How to migrate Linode from Dallas to Tokyo?

Tue, 11 Oct 2011 09:47:15 +0800

Open a ticket request migrate linode instance to Tokyo
Linode customer service will reply the ticket notice your IP address will change, if this is acceptable, Linode will configure migration to Tokyo.
Log into Linode Manager, shut down, and click the migrate button to move to new server, it will take several hours move data from Dallas to Tokyo datacenter.
Boot linode instance
Setup network from "Remote Access" in Linode Manager, here you have to use command "ifconfig -a" see if your eth0 changed to eth1, then setup:
/etc/resolv.conf, update nameserver to DNS resolvers in Remote Access interface
/etc/network/interface, setup eth0 or eth1.
Update dns record to new IP.

Google Reader shared items [2011-10-09]

Sun, 09 Oct 2011 00:00:00 +0800

处理遗留系统
处理遗留系统，几乎是每个程序员都不可能绕过的一件麻烦事儿。因为时间压力，技能不足以及功能复杂等诸多原因，常常使得遗留系统的代码变得糟糕混乱，可读性与维护性差，无法保证功能的可测试性，纠缠不清的代码让类、方法之间紧紧耦合在一起。如果遗留系统能够正常..