Book Image

iOS Programming Cookbook

By : Hossam Ghareeb
Book Image

iOS Programming Cookbook

By: Hossam Ghareeb

Overview of this book

Do you want to understand all the facets of iOS programming and build complex iOS apps? Then you have come to the right place. This problem-solution guide will help you to eliminate expensive learning curves and focus on specific issues to make you proficient at tasks and the speed-up time involved. Beginning with some advanced UI components such as Stack Views and UICollectionView, you will gradually move on to building an interface efficiently. You will work through adding gesture recognizer and touch elements on table cells for custom actions. You will work with the Photos framework to access and manipulate photos. You will then prepare your app for multitasking and write responsive and highly efficient apps. Next, you will integrate maps and core location services while making your app more secure through various encryption methods. Finally, you will dive deep into the advanced techniques of implementing notifications while working with memory management and optimizing the performance of your apps. By the end of the book, you will master most of the latest iOS 10 frameworks.
Table of Contents (22 chapters)
iOS Programming Cookbook
About the Author
About the Reviewer
Customer Feedback

Working with UICollectionView

UICollectionView is a very handy and awesome view when it comes to dealing with grid layout. Collection view helps you create a grid layout (2D cells) easily without hassle. Collection view is just a scrollable view that lays out multiple cells in a grid layout. So, to create a collection view, you have to specify a data source and delegate exactly like UITableView. Besides that, you need to specify how the layout of your cells will appear. iOS provides you with an abstract class-UICollectionViewLayout-which should be subclassed to customize how the content will be managed. You can create your own custom layouts and describe how you want to lay out your cells. However, thanks to Apple, it provides us with a premade layout called UICollectionViewFlowLayout, which flow the layout by placing the cells one after the other based on their sizes and the spacing between them.

How to do it...

  1. Create a new Xcode project with our lovely template Single View template and...