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
Sometimes it can be handy to either translate an address into a set of coordinates, or get an address from a set of coordinates. These processes are known as geocoding and reverse geocoding respectively. This quick tutorial will go over how to do these things using location services.
This week we’re gonna check out some of the mapping functionality available in iOS 7. If you haven’t heard by now, developers now have nearly full access to 3D mapping API’s. Now, you can show you’re own 3D maps.
Hooray! Apple NDA is over on iOS 7. Which means, this is the very first iOS 7 post at NSCookbook. For the first recipe on iOS 7 we’re gonna talk about UIKit Dynamics a bit. For those of you that don’t know what it is. One word, Awesome! Dynamics is a new framework that lets you give physics inspired animation to views.
Last time we left off in our block discussion I had gone over some of the basics of blocks. How to implement them, call them, and gave a bit of insight on why they are cool. Now, there is one really big benefit to using blocks and that is Grand Central Dispatch. There are of course many other neat things you can do with blocks and we’ll briefly cover a few of those too.
- You Have already looked at Recipe 25: Implementing Blocks Part I.
So What Is Grand Central Dispatch?
Today, I’ll use wikipedia as my crutch:
Grand Central Dispatch (GCD) is a technology developed by Apple Inc. to optimize application support for systems with multi-core processors and other symmetric multiprocessing systems.
Ok this doesn’t tell us a whole bunch, but what it does tell us is that it is a technology developed for multi-core processors. All you need to know is GCD is a set of tools that Apple has provided that allow us to perform blocks serially or concurrently on various queues (which map to either the main thread or another GCD managed thread). We also have the option of doing this either synchronously or asynchronously.
- You have strong knowledge of Objective-C and Core Foundation.
- You have basic understanding of of KVC (Key Value Coding) within the Objective-C language
Many if not all developers use collection objects everyday while developing great apps, but few know about the power of collection operators. As part of KVC (key value coding), collection operators help make many routine tasks simple by eliminating and simplifying code.
Those of you still waiting on the blocks part II article, hang in there, I’ll get to it soon enough. For now I thought I would give ya’ll something short and sweet that is also really useful.
Every now and then new stuff comes along that makes our lives easier. One of the best things to come to Objective-C is the advent of blocks. Blocks can simplify callbacks, enumeration, and they have huge benefits in terms of multi-threading. At first, blocks will blow your mind. Block syntax is weird, but once you get the hang of em’ they’re actually kinda easy.
This Recipe is inspired by a recent problem I ran into and had quite a bit of trouble with it. Basically I wanted to create a shape and fill it with a gradient. Sounds pretty easy huh? well, not quite as we’ll find out shortly. While my particular application required filling a circle with an ellipse, we can create any shape. In essence we’re creating a window (shaped however we want) where the user can see only a portion of the drawing behind it.
One of the coolest things about the iPhone is it’s ability to handle audio. Since it was born out of an iPod, the iPhone handles audio quite well. In this recipe we’ll explore audio recording and playback. We’ll be creating a simple app that records a sound file and plays it back. We’re basically making a voice memo app that only saves one memo and plays it back.