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

Displaying pins in map view

Pins (or annotations) are used to display markers on the map for specific locations, nearby places, or points of interest to the user. Each annotation represents a single point (coordinate) on the map which the user can select to get more information about the location. Annotations have another advantage, which is that they remain fixed on the map while the user scrolls or zooms the map; in that case, the annotation will move appropriately.

Getting ready

Before displaying annotations on the map, we need to highlight some points related to annotations and how they work. To display an annotation on the map, you need two separate things:

  • Annotation object: An annotation object is any object that conforms to MKAnnotation protocol. This object manages the annotation data, such as coordinate, title, and subtitle.

  • Annotation view: This is any object derived from MKAnnotationView, which manages the drawing of the visual representation of the annotation object on the map.