Twitterrific has a splash screen and I would like to get rid of it. But I can’t.
Splash screens hurt the user experience from a purely psychological point-of-view. They don’t change the launch time of your iPhone application at all, but it looks and feels longer.
But there’s a problem: you can only specify one Default.png file [...]
People have asked which part of our Twitterrific application for the iPhone was hardest to develop. There were many challenges, but the one I found most onerous was scrolling in the UITableView.
The code we shipped in 1.0 was obviously flawed. Scrolling was jerky. We weren’t happy with it and neither were users.
There was no shortage [...]
Thank God—that’s the last time I’m going to type that word for awhile. The meme is dead, long live the SDK.
As a way to celebrate the lifting of the NDA, we bring you some very special source code. To wile away the time between our product submission and the launch of the App Store, my [...]
Dear Steve,
I am an iPhone developer. I love Cocoa Touch—it’s an amazing piece of engineering. I’m having great success with the products I’ve written (one of them even won an ADA at this year’s WWDC.) Sales through iTunes are great and well above my expectations.
And despite of all this, I’m feeling ambivalent about developing new [...]
There was a time when I would have never considered jailbreaking my iPhone. That was a time before I saw Lucas Newman’s and Adam Betts’ groundbreaking application for the iPhone: Lights Off.
It’s a simple game. It’s simple code. And it demonstrated what was possible for the rest of us outside of Cupertino. I was hooked. [...]
As we saw in the previous post, your view controller’s view can be released at any time because the device needs memory. One of the things you’ll want to look at in your own code is how you cleanup when when the memory warning occurs.
Here’s an interface for a simple view controller class that embeds [...]
Now that we’re beta testing and able to symbolicate our crash logs, let’s look into one of the crashes that they helped me solve in version 1.0 of Twitterrific.
The crash was happening during the posting of a notification. The backtrace looked something like this:
Program received signal: “EXC_BAD_ACCESS”.
#0 0×300c87ec in objc_msgSend
#1 0×30675b0e in _nsnote_callback
#2 0×3025380c in _CFXNotificationPostNotification
#3 0×30673f46 in [...]
NOTE: It’s not clear if the information in this essay is covered by the NDA or not. The instructions presented here are either referenced on Apple’s own site or referenced in the publicly available version of Xcode. If requested, I will remove this post.
During Steve Jobs’ WWDC Keynote the announcement of Ad Hoc distribution meant [...]
A major feature of the App Store are the user reviews about the software being offered. There’s just one problem: software is not music. I’ve never had an MP3 crash or lack features. Applications also evolve and improve; I’m pretty sure the Jimi Hendrix track I’m listening to right now is the same one he [...]
It’s pretty clear that the App Store is a huge hit. We’re all loving the ability to customize our iPhones and iPod touches with cool new software!
But with any big new release, there are problems that didn’t pop up while beta testing. As iPhone developers, we’re finding ourselves in a position where we can’t help [...]