Categories
iPhone app

A collection of iOS dev tutorial guide

Reading Time: < 1 minute

Arguably iOS 7 bring most drastic changes to iOS in last 3 to 5 years. With new features like dynamics in UIKit, (more/new) auto layout, it creates both opportunities and challenges for developers. But I know the Mac/iOS developer community is best, in terms of sharing knowledge. With the iOS 7 out just 2 weeks ago, I already see some good iOS 7 dev tutorial and guides.

Tristan O’Tierney ‏@tristan recommend this one by @ashfurrow. Note Tristan is one of the early iOS developer for Square. Ash Furrow is an iOS developer @teehanlax.

Essential iOS 7 developers guide by Double Encore
Remember seeing those guys (guys wearing their T-shirt) at one of the iOS dev conference (Voice that matter, Fall 2010 at Philly).

RayWenderlich.com iOS 7 by tutorial
This is probably the most comprehensive and the best iOS tutorial in the market. Ray started this tradition from iOS 5 (so this is three years in a row). Note Ray has also published a few shortened version of selected tutorials in the iOS 7 tutorial feast (free).

I will add more as I see fit.

Categories
iPhone app

iPad in classroom

Reading Time: < 1 minute

Good idea? Bad idea? I read this article on LATimes talking about how the kids hacked the MDM software on school issued iPads. The topic was on security. Obviously the MDM provider did not do a through job, as explained by an article on alertboot here.

This reminds me of another question, the iPad in classroom. A while ago I recall seeing a plea at my local school website, the kids there asked parents/friends donation, to buy them iPad, so that they can do cool things like count coins on iPad. My take then is why not counting the real coins. I can understand the pitch from educators (such as this one at LAUSD), the blah blah (perceived good things are going to happen with the iPads). At the end of the day, those devices have to be used to enhance the kids learning, not to distract their learning, or to reduce teachers’ creativity.

(Update 10-02-13) Tom Kaneshige of CIO magazine has a more comprehensive explanation of MDM and why the incident happened.

Categories
iPhone app

iOS 7 first impression #iOS7transition

Reading Time: < 1 minute

(Update 09-27-13) I think it’s a bit silly people are all over the motion-sickness caused by iOS 7. I found the new Safari “color effect under address bar when the web page moves up” cool, it took me a while to figure out why the color on the top is changing sometimes (very subtle 🙂

(Original 09-25-13) I updated my iPad mini from iOS 6.1.2 to iOS 7 (upgrade to 6.1.3 first) in the weekend, when I saw the tide is turning to iOS 7 for the iDevices 🙂

Some impressions
Motion fact, when one rotate or moves the iDevice, cool;

Warm and fuzzy (screen saver, password screen), control center;

Enterprise deployment change (ad hoc deployment now checks version/bundle number);

App: Zite, the close article (x check mark) is at bottom left, previously user tap background, note the new icon for sharing;

Safari, again note the new icon for sharing, bookmark, history.

By the way, I am tweeting some of my iOS 7 observations on twitter using #iOS7transition.

Categories
Uncategorized

Feel bad for Blackberry (formerly Research in Motion)

Reading Time: < 1 minute

The BBM for Android and iPhone app collapsed (see TechCrunch article).

Feel bad for those guys. Note my first smart phone is a Blackberry.

It appears they got some serious problem with the scale of BBM on Android
and iPhone app rollout. It’s possible the talent guys already left the boat.
..basically they put half baked stuff out there.

Categories
Fun iPhone app

Almost there ~ my 1st impression on Nexus 4 and Android 4.2.x

Reading Time: 2 minutes

(Update 2, 11-18-2013) I sold my Nexus 4 as I am getting my iPhone 5s. I still think Nexus 4 is a lot phone for the money ($199 before tax). Another feature I liked is the integration with google contacts, and google+ photo backup. I just found there’s an option on iPhone Google+ app for backup now.

(Update 09-16-2013) I agree with @PhillRyu that the back button on Android is nice, along with the multi-task button, it separate tasks from the home button (the iOS home button is a bit overloaded, it does both back and home, and double click home brings up the multitask thing).

(Original 09-08-2013) Last week I got my 1st Android phone, the Google Nexus 4. I bought it primarily due to its lowered price (from $299 to $199 before tax), and my 3 year old iPhone 4 battery is doing down hill (found a trick to save it after I bought the Nexus 🙁

I tweeted some minor problems/questions I have with Nexus 4/Android since then. Again for the most part, I am happy with the screen size, battery life (being new), and the sharpness of android in general. A few things I mentioned/complained in twitter:

1) Lack of a native Mail app, in iPhone I can add all the mailbox (yahoo mail, gmail) to the Mail app, in Android there is not a good very native app. But later I noticed the notification feature kinda compensated it. I did install the Yahoo Mail app. The Gmail comes by default.

2) Again on the email things, for some html formatted email, it appears iPhone can scale it properly the first time when the user opens it, on Android, it did not get right the first time. The workaround is move the mail left, then zoom (make it a bit smaller to fit in the screen). Not a big deal.

3) A bit sneaky: the Android recommend feature, in Youtube, Play store (music). Also the photo upload (to Google+).

4) Chrome web browser does not have a “reader” feature like Safari does: for better reading experience (filter out ads, and scale the web page).

5) Share it feature: initially I thought it only has the gmail, google+…after I installed the facebook and yahoo Mail, I found those are also available.

Categories
Fun iPhone app

iTunes, iCloud, Dropbox, wd 2go

Reading Time: < 1 minute

Krugman, the Nobel economics laureate recently penned an article basically saying Apple is no good. I think he has one valid point on iTunes and the relatively closeness of Apple ecosystem. This reminds me of one thing, the cloud storage for consumers. Apple has this iCloud going for a few years, it can be used to back up iDevices (photos, videos, documents, etc.), but not as flexible as Dropbox (or Box.net, and many others), both Apple and Dropbox has the subscription plan, for iCloud, it’s $20 for 10Gb additional (5Gb is free) per year, and for Dropbox, it’s $10 for 500 GB per month (2Gb is free, and there are other ways to earn free storage).

Then I came across this wd 2go, it is probably the cheapest (if we ignore the electricity, and bandwidth cost), basically it’s free with the WD My Book Live purchase. My Book Live costs about $129. There is no recurring fees. I have not got this one yet, but I’m thinking about it as I have 2 iPhones’ worth of pictures/videos, and need to store it someway. Was wondering if I could just transfer from iTunes to the WD My Book drive.

While I went through all these, what’s my point? Personally I think the openness rankings of those 3, from most close to open: iTunes/iCloud, Dropbox, wd 2go. Of course I understand one can argue security wise, the ranking might be different 🙂

Categories
Fun

People are more important

Reading Time: < 1 minute

Was at a friend’s house last night, watching the July 4th fireworks display at his house, as the house has a perfect view. We talked about things since we have not seen each other for a while. When asked by a friend what is the things gave me impressions on my first employer (I worked there for 8 years), I thought about it, and said “people”. Yes it was the people in Unigraphics Solutions (UGS, EDS PLM Solutions, and last Siemens PLM Software) help me jump started my career, and you all know who I meant. I still keep in touch with some of them.

The paragraph above was written about a month ago. This past Saturday I happened to bump into my old colleague at local license office. I knew he changed job couple times in recent years, after both of us left the company (me in 2008, him in 2009). He told me some unpleasant development in the company lately: downsizing, layoff etc. I know at this time my capability is fairly limited, but my thoughts and prayers are with my former coworkers.

Yes, human beings are always the most important.

Categories
Uncategorized

How it all got started?

Reading Time: < 1 minute

A few years ago, when I was a Java developer with a focus on JSF front end, one of my task is the paging of many pages of data, using Richfaces. Like many open source framework, Richfaces is a powerful tool, but it has its flaws (or limitations) if we don’t implement it carefully.

Here is one question I had at the time, and I answered by myself.

Of course, the real pain is when I tried to add and delete an entry (a row), and which causes the total number of pages to change, it just could not get the page number right 🙁

I have left the client since, but I have not got away with the data grid and data table. The very first iOS project I worked at my next employer involves mimic the Excel spreadsheet on iPad, the data grid is the center piece of all this because it will be used to input data, replacing the paper process. The other piece is to hook up with database (via web service) so that we eliminate the paper process completely.

Categories
Fun

Two jokes

Reading Time: < 1 minute

From CocoaChina.

一、
一个人坐在热气球上飞行,突然发现自己迷路了。他降低高度,发现下面有个人。他把气球降的更低,大声向下面的人问路,“请问,你能告诉我我在哪吗?”

下面的人说:“当然,你在一个热气球上,距离地面30英尺高。”

“你一定是个搞技术的,”热气球里的人说。

“没错”这人回答道。“你怎么知道的?”

“很简单,”热气球里的人说,“所有你告诉我的东西在技术上都是正确的,但对我一点用处也没有。”

下面的人回复说,“你一定是个项目经理。”

“没错,”热气球里的人说,“你怎么知道的?”

“很简单”,下面的人说,“你经常找不到北,或者不知道该去哪,你希望别人能够帮助你。在遇到我之前你也是这样,但现在是我犯了个错误。”

二、
从前,有一牧羊人,他在一条荒废的公路边照看他的羊群。突然,路上一辆崭新的保时捷嘎然来了一个急刹车。车主,一个穿着阿曼尼的西装,Cerutti的鞋子,带着Ray-Ban太阳镜,TAG-Heuer腕表,系着一条范思哲领带的年轻人走了出来,问牧羊人:“如果我能告诉你这里一共有多少只羊,你能给我一只吗?”

牧羊人看看这个年轻人,然后又看看他那成群的在牧场上吃草的羊,说:“行。”

年轻人停好他的车,用笔记本连上无线网络,接入美国宇航局的服务,用GPS扫描地面,然后进入数据库,导出60张填满了算法数据和校验数据表的Excel,然后用他的高科技的微型打印机打印出一份150页的报告。他转过头来对牧羊人说:“你不多不少一共有1586只羊。”

牧羊人非常高兴,说,“非常正确,你可以拿走一只羊。”

年轻人选了一只,放进保时捷的后备箱。牧羊人看着他,问:“如果我能猜出你的职业,你能把后备箱里的那只动物还给我吗?”

年轻人回答:“当然,为什么不呢?”

牧羊人:“你是一个IT顾问。”

年轻人:“你怎么知道的?”

牧羊人:“非常简单。首先,你不请自来。第二,你让我花钱来换取我已经知道的事情,三,你根本不知道我是干什么的…现在你能把那只狗还给我了吗?”

Categories
iOS

The modified GMGridViewDemo

Reading Time: < 1 minute

I added the 3rd tab has the excel like data table, the screen shot shown below. I can provide the source code if needed. Just email me at minjie dot xu AT gmail dot com

spreadsheet on iPad