b2cloud wins Mobile Design Awards 2014

Recommended By

We are thrilled to announce that b2cloud has won the Mobile Design Award for Best Wearable Technology for our work with Telstra. The award recognises our innovative work using Google Glass to help empower the visually

Telstra and b2cloud – using Google Glass to improve people’s lives.

Recommended By

We are thrilled to announce some groundbreaking work we have been doing with Telstra for Google Glass. Over the past six months we have developed two world-first Google Glass apps designed for the visually and

#14 in Deloitte Tech Fast 500 Asia-Pacific 2013

Recommended By

What a proud day for the b2cloud team. We have just been announced by the Deloitte Tech Fast 500 Asia Pacific as the 14th fastest growing technology company in the region, and the fastest growing mobile app developer.

Automatic Reference Counting

Guides | Tutorial By 1 year ago

Automatic Reference Counting (ARC) has been around since iOS 5, however it has been an optional tick box when beginning a new project, and if not selected, Manual Reference Counting (MRC) is used. As of Xcode 5, the ARC tick box is missing, and all new projects start with ARC. While you can still disable ARC manually in the project's config file, this is probably a good sign that ARC is the way to go for new projects.

Copy vs. Retain, Immutable vs Mutable

Guides | Tutorial By 2 years ago

In the Foundation framework for iOS and Mac the main container classes (NSString, NSArray, NSDictionary, and some others) have two states; Immutable and Mutable. If a class is immutable, it cannot be changed and is treated as ready only. When a class if mutable it can be modified after creation. It may seem that when passing one of these around it may be faster to retain it rather than copy it, because new memory does not need to be allocated. While this is true it can leave instabilities, see this example.

Xcode’s Analyzer (and how to prevent it)

Guides | Tutorial By 2 years ago

Xcode’s “Analyzer” is normally a great way to determine where most memory leaks will occur in your project without actually running it. If you follow Apple’s Memory Management Guidelines the Analyzer is pretty accurate. By no means is it a replacement for the Profiler, but offers some quick checks.

Retain Loops and Delegates

Guides | Tutorial By 3 years ago

When using delegates in an object in Objective-C it is important that the delegate is only assigned within your object, and never retained. The reason for this is to prevent a retain loop, where two objects retain each other; they will never be released. The fix is simple, but can catch you off guard if you want to create an array or dictionary of delegates (using an NSDictionary or NSArray).