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In June 2011, I blogged about the App Launch Sequence on iOS for the first time, illustrating what really happens under the hood between the launch of an iOS app and the application:didFinishLaunchingWithOptions: method. Since that time, Apple has revised the default launch sequence in their iOS app project templates, so it is time for an update to the original post. Flowchart Flowchart of the def
By Ole Begemann More about me and contact info November 22, 2011 Last update: November 23, 2011 In part 2 of my little series on date and time handling in Cocoa I am going to talk about date parsing and formatting. In other words: how to convert strings into date objects and vice versa. You should read part 1 first if you haven’t yet to get an overview of the classes used by Cocoa’s date and time
OBSlider, a UISlider Subclass With Variable Scrubbing Speed The iPod app on the iPhone has a nice feature: the user can slow down the scrubbing speed of the time slider by moving their finger vertically while dragging the slider. Yesterday, the question how to do this in our own code turned up on StackOverflow, which inspired me to find a solution. (By the way: I find this is an awesome way to imp
By Ole Begemann More about me and contact info June 17, 2010 Last update: February 22, 2013 Update February 22, 2013: Please do not use the code I present in this article anymore. The iOS SDK has progressed tremendously since I wrote this post in 2010, and now provides a native implementation of the page curl gesture/animation in the form of UIPageViewController. This API is a lot more flexible an
By Ole Begemann More about me and contact info July 13, 2009 Last update: October 28, 2009 In version 3.0 of the iPhone SDK, Apple gave us access to the iPod library on the iPhone and and easy-to-use interface to control music playback. In this post, I want to give an overview of these APIs and how I used them in the development of Songtext. Getting started: MPMusicPlayerController You need to add
Hi, I’m Ole. I’m a developer from Berlin and co-author of Advanced Swift. Here, I mainly write about Swift and app development on Apple platforms. More about me. How the Swift compiler knows that DispatchQueue.main implies @MainActor I found the place in the compiler’s source code where it applies a special attribute to DispatchQueue.main.async closures. Plus, a rant about how Xcode presents Swift
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