Reading Time: < 1 minute drop down box Clear a list for selectionOneMenu every time, got burned by this in a “page number” drop down for Richfaces data scroller. And some other places. Use validator keep in mind it will overwrite the required = “true”, if the user does not select a valid value from drop down, it will give
Reading Time: 2 minutes The following was written more than a year ago… ====== Got opportunity to work on those two technologies recently due to job change. Had some gotchas as I transform from C++, CAD programming to this new program paradigm. Data problem vs. coding error In CAD world, sometimes there is problem with the data (CAD file)
Reading Time: < 1 minute Stanford commencement speech (2005) Macintosh 1984 commercial Steve Jobs and Bill Gates in 1983 Apple event My other post on Steve Jobs. Walt Mossberg on Steve Jobs.
Reading Time: < 1 minute Dirty flag on a HTML form is much trickier than I thought, that is, it is tricker when I started to programming for dirty flag. Saw this javascript snippet. It works great except in my case, I was generating dynamic drop down (selection menu), and in a lot of cases it behaves as opposite to
Reading Time: < 1 minute It looks like it. Obviously my observation could be quite limited. But here is the background, in the good old days, Apple ranks app mostly by the download number in a given amount of time, and the ratings/reviews. So basically the popular the app, the higher the rank. This process could reinforce itself. Apple realized
Reading Time: 2 minutes (Update 06-24-11) Last night I found “More iPhone 3 development” (by Dave mark and Jeff Lamarche) chapter 14 deveoted full chapter to multithread including timer. (Original) As of iOS 4, Apple made blocks and Grand Central Dispatch (GCD) available. Previously it was available on Mac. Some pre-requisite or recommend readings WWDC 2010 video session 206:
Reading Time: 3 minutes (Update 05-10-2014) I saw the IPO of China based Cheetah Mobile in the news, not too impressed or confident of their apps though, although I know they make money. Cheetah was a subsidiary of Kingsoft (and King still has a big stake after IPO). I also noticed the WSJ article about China app market. I
Reading Time: 2 minutes I was working on a new app and this app has something to do with timing. Basically I need to record the time between a button being displayed and the time a user touches the button (note they are in two different functions). NSDate and memory leak To accomplish this, I am using NSDate class,
Reading Time: < 1 minute (Update 08-29-2014) As of iOS 7, this functionality needs some tweak. See this thread on stack overflow and this post. The gist of the change is Apple disabled http, it needs https now. (Original 05-14-2011) I was following John Muchow’s tutorial “Distribute Ad Hoc Applications over the air OTA“. It worked as expected until the
Reading Time: 2 minutes If you are iOS developer who has sold app (or ads, in-app purchase) on iTunes App store, the iTunes connect Financial Report is no stranger to you. Personally I published my 1st paid app to the App store last Sept, and I have since received financial report email notifications, and direct deposit. I did not
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