Book Image

Learning iOS UI Development

Book Image

Learning iOS UI Development

Overview of this book

Through this comprehensive one-stop guide, you’ll get to grips with the entire UIKit framework and in a flash, you’ll be creating modern user interfaces for your iOS devices using Swift. Starting with an overview of the iOS drawing system and the available tools, you will then learn how to use these technologies to create adaptable layouts and custom elements for your applications. Next, you’ll be introduced to other topics such as animation and code-drawing with Core Graphics, which will give you all the knowledge you need to create astonishing user interfaces. By the end of this book, you will have a solid foundation in iOS user interface development and will have gained valuable insights on the process of building firm and complex UIs.
Table of Contents (16 chapters)
Learning iOS UI Development
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

View-based components


The following controls are subclasses of UIView, and they are useful to display noninteractive information or act as containers.

Showing progress with UIProgressView

A progress view is an indicator of progress over time. You can see an example of this control during downloads or when sending an e-mail from the Mail app:

This control is extremely simple. The only property you need to set and read is progress, a value between 0.0 and 1.0. When this value is 0.0, the progress bar is empty, while it is full when its value is equal to 1.0. You can perform a simple animation if you set the progress value using the setProgress:animated: function and passing true for the animated parameter.

Control customization

The control can be easily customized with dedicated functions. You can customize the track that is not filled by specifying a tint with the trackTintColor: function or even using an image with the trackImage: function. The same customizations are available for the progress...