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

Resizing table view cells dynamically

In the previous demos, we saw that all the cells have the static cell height that can be configured from the storyboard. In this section, we will learn to resize table view cells dynamically, that is, based on the content height you have in your cell. Use this feature only if you want your cell to be resized based on the content height. Autolayout will help us greatly in this section and I recommend revising/reading the Autolayout chapter before starting this section.

How to do it...

  1. Create a new Xcode project with the name Dynamic Cells and a Single View template.

  2. Add a UITableView with the delegate and data source set. Add a prototype cell with a basic style, as we did in section one. Implement the delegate and data source and display only four cells.

  3. In ViewController.swift, add the following titles to be displayed:

          let titles = ["This is very simple title", 
                      "Long text goes here\nLong text goes here\nLong text goes here\nLong...