Book Image

iOS Programming Cookbook

Book Image

iOS Programming Cookbook

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
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

Working with Keychain


When you work in mobile apps, you will come across situations when you need to store sensitive information, such as passwords, keys, tokens, user sessions, and so on. Saving this information in plain format or in a place where other apps or the user himself can access it is a disaster and can compromise the security of your device.

From my point of view, I don't recommend saving any sensitive information on the device. However, if you really want to go ahead with it then, before saving anything, you have to ask yourself, do I really need to do this? It's very important to save all important information on the server side and, if it is absolutely necessary to save anything locally, it has to be encrypted and saved in a secure place, such as Keychain.

Getting ready

Keychain is a secure place however nothing is 100% secure and you can assume that anyone can hack it and you have to be ready to save sensitive information inside (if needed to). Keychain assures that all data...