In part one of this series we talked about the heap, the stack, object ownership, and how reference counting works. In this article we’re going to expand on this to include the role of properties and how all of this works in ARC (Automatic Reference Counting).
Not too long ago I came under the painful realization that I had been hacking my way through iOS apps without fully understanding how Memory Management works in Objective-C. Up to this point my memory management tactic was waiting for the compiler to complain and then take the suggestion the compiler provided. If that failed, Stack Overflow to the rescue! While this usually fixed the problem and works fine on small applications, it probably isn’t the best tactic when working with apps of a larger scope where performance is a big issue. So hopefully with this article I can help clarify things for you so you’re not left stuttering stupidly in an interview when they ask “What’s the difference between the stack and heap?” or “How does reference counting work?”.
Many times with app development there will be a need to store quite a bit of relational information within your app. This could be any data, for example what if you needed to store data about an managers and their employees. Core Data is the perfect solution to these types of problems. In this recipe, We’ll walk you through setting up an application that utilizes core data.
As a developer you quickly find out that many of the more useful apps require a web backend of some sort. This presents a problem for developers looking to build something without wanting to create a website and a RESTful API service to support their app. There are a number of platforms that seek to solve this problem, but the one I’ve been playing with lately is Parse. Parse so far has impressed me for a number of reasons, but mainly because it’s free for quite a few requests and really easy to use. This tutorial will walk you through getting started with parse and demonstrate some of the nifty features.
iOS Programming Recipe 16.2: Populating A UITableView With Data From The Web – iOS 7 and AFNetworking 2.0
This article will be nearly the same as Recipe 16, except that it will cover AFNetworking 2.0 and iOS 7 instead.
- You have a grasp on Xcode basics. If not go get some education here.
- I also recommend reading the other two tutorials on creating table view as I’ll be building on some of the concepts in those tutorials: Recipe 11 Part 1 & Recipe 11 Part 2