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

Reading and inserting records to Core Data


We have set up our data models, and now we are ready to do some operations in Core Data. In this section, we will see how to insert new records and fetch them back so that we can display them to our user. In our demo, we will design a screen so that the user can add new task lists and see the already added lists. The user will then be able to select a task list to open another screen, which has a list of tasks inside this list. We will add a functionality to add new tasks to this list.

How to do it...

  1. Let's continue working in our demo to build our Todo app.

  2. Create a new Group in Xcode called Model to add the model classes inside.

  3. Create a new class called AbstractManager to work as a parent manager for the TasksListsManager and the TasksManager classes that we will create.

  4. Add the following code in the AbstractManager class:

          import UIKit 
          import CoreData 
     
          class AbstractManager: NSObject { 
     
              ///...