Reading Time: < 1 minute (Update 02-06-2014) My UP band died. I fully charged it, tried both soft reset and hard reset, as discussed below, but seems could not revive it. The following was written on Nov. 14, 2013. I have a bit more experience with UP band since then, note Jawbone also came up with new UP 24, which

Reading Time: < 1 minute I sold it much quickly than I thought (sold right after I posted on Amazon on Nov. 18, 2013), and I did back up photos using 3 approaches. 1) Dropbox; 2) Back up to PC using the backup utility on the Phone; 3) Google+ After using google+ backup on my Nexus 4 for a while,

Reading Time: < 1 minute It appears the UITableView cells created via storyboard is not updating correctly, say, if we want to add or delete a row. It only update once. The workaround in this case is creating the rows programmatically (instead of static tags from storyboard). Similarly, I recall the JSF Richfaces paging problem when add/delete a row which

Reading Time: < 1 minute I came across this example in Jan 2012 (almost 2 years ago :-). A lot has changed in iOS landscape, but the author did a good job designing the application, I think. Displaying Tabular Data on iPhones (Tom Thompson, overview of UITableView) Making Two-Way Tables in iOS (a two dimensional table, with text field as

Reading Time: 2 minutes (Update 05-10-2016) Came across this post about hosting your own Parse server from raywenderlich.com (Update 01-28-2016) All good things came to end (see today’s Facebook announcement on shutting down Parse on January 28, 2017, a year from today). They also listed migration path. A lot discussion on reddit on this topic. Also a tutorial on

Reading Time: 2 minutes Atlantic CS monitor My take: My daughter is 3 and half years old. My wife had iPhone (3g) before she was born, and I bought iPhone 4 when she was 6 months old. Then comes the iPad (1), and currently I have an iPad mini, and my wife has iPad 4. I spent about $30

Reading Time: 2 minutes Recently I’ve worked on updating one of my app to make it works on iOS 7, and have encountered some roadblocks. Push view controller problem/symptom: the new view controller pushed from old view controller shows no content, on iOS 7. It works fine on iOS 6.1 (the deployment target is still iOS 6.1). solution/diagnose: I

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

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

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 🙂