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 stack views


UIStackView is one of the coolest features introduced in iOS 9.0 for developers. It was a hassle to arrange groups of views horizontally or vertically. You had to get your hands dirty with a lot of Auto Layout constraints to arrange these views properly. UIStackView makes arranging subviews horizontally or vertically easier without you worrying about Auto Layout. Although you don't need to use Auto Layout to arrange your views, as its UIStackview's job, you still need to use Auto Layout to define position and size of the stack view itself. If you're still not convinced about the magic that UIStackView does, you have to give it a shot.

How to do it

  1. As usual, let's create a new Xcode project with Single View template and name it StackViews.

  2. Open the storyboard file and select the view controller and change its size to iPhone 4-inch.

  3. From Object Library, drag a Vertical stack view and add it as a subview.

  4. Change its frame to (X = 20, Y = 20, Width = 280).

  5. We need to add constraints...