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  • Book Overview & Buying Learning iOS UI Development
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Learning iOS UI Development

Learning iOS UI Development

By : D'areglia
4.2 (5)
Buy this Book
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Learning iOS UI Development

Learning iOS UI Development

4.2 (5)
By: D'areglia
Buy this Book

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 (11 chapters)
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Preface
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Preface
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What this book covers
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What you need for this book
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Who this book is for
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Conventions
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Reader feedback
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Customer support
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1
1. UI Fundamentals
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1. UI Fundamentals
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Exploring windows
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Working with views
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UI hierarchy and views inheritance
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Summary
2
2. UI Components Overview – UIKit
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2. UI Components Overview – UIKit
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Exploring text elements
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Exploring buttons and selectors
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View-based components
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Managing and presenting structured data
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The UIAppearance protocol
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Summary
3
3. Interface Builder, XIB, and Storyboard
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3. Interface Builder, XIB, and Storyboard
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Interface Builder
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An overview of the editor
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Working with XIB files
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Managing user interfaces with Storyboards
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Connecting user interfaces with your code
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Implementing navigation with Storyboard and segues
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Summary
4
4. Auto Layout
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4. Auto Layout
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How Auto Layout works
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Summary
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5. Adaptive User Interfaces
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5. Adaptive User Interfaces
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UI definition with size classes
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User interface's traits
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Size classes and Interface Builder
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Working with Dynamic Type
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Exploring text styles
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Improving Auto Layout structures with UIStackView
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Summary
6
6. Layers and Core Animation
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6. Layers and Core Animation
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Exploring layers
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Working with core animation
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Summary
7
7. UI Interactions – Touches and Gestures
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7. UI Interactions – Touches and Gestures
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Events and touches
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Responder chain
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Gestures and gesture recognizers
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Summary
8
8. How to Build Custom Controls
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8. How to Build Custom Controls
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The Thermostat control
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Designing a custom control
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The UIControl class
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Implementing the ThermostatSlider control
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Sending actions
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Customizing the control with UI Appearance
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Summary
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9. Introduction to Core Graphics
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9. Introduction to Core Graphics
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Drawing on the graphic context
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UIKit helpers
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Drawing with paths
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Summary
10
Index
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Index

The UIAppearance protocol

If there's one thing the controls we've talked about so far have in common, it is that they can be graphically customized with the use of simple functions. This is a great a feature that has been added to UIKit since iOS5, and it allows us to modify the looks of any default control with just a few lines of code.

This feature is improved by the UIAppearance protocol that, thanks to the appearance proxy, forwards the customizations to all the instances of a specific class. The appearance proxy for a class can be retrieved using the appearance function, and as it returns instancetype, its properties can be easily accessed. Here is an example of the code needed to set onTintColor for all the UISwitch instances of an application:

UISwitch.appearance().onTintColor = UIColor.redColor()

The properties that take part in the UIAppearance protocol and can therefore be modified through the appearance proxy must be marked with the UI_APPEARANCE_SELECTOR tag. This portion...

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