Starting With Bluetooth Low Energy Development on iOS
By Ole Begemann More about me and contact info April 29, 2013 Last update: April 30, 2013 With the iOS 5 SDK, Apple introduced the Core Bluetooth framework. Core Bluetooth allows developers to write apps that talk directly to hardware gadgets or other iOS devices1 using the Bluetooth Low Energy (LE, also called Bluetooth Smart) standard. Update April 30, 2013: Things work differently for Bluetooth
10 Things You Need to Know About Cocoa Auto Layout
By Ole Begemann More about me and contact info March 31, 2013 Last update: March 3, 2014 Working with Cocoa Auto Layout for the first time is very different from the springs and struts model Cocoa developers have known for more than a decade. Despite the complexity of Auto Layout, I have found that you need to understand just a few basic rules to make the concept click. This article is an attempt
OBSlider, a UISlider Subclass With Variable Scrubbing Speed
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
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Accessing and Pretty-Printing the Elements of a CGPath
