iOS 14 Programming for Beginners

Cover
Title Page
Copyright and Credits
Dedicated
About Packt
Contributors
Table of Contents
Preface
Section 1: Swift
Chapter 1: Getting Familiar with Xcode
	Technical requirements
	Downloading and installing Xcode from the App Store
	Understanding the Xcode user interface
	Running the app in the iOS simulator
	Using an iOS device for development
		Connecting an iOS device wirelessly
	Summary
Chapter 2: Simple Values and Types
	Technical requirements
	Understanding Swift Playgrounds
		Customizing fonts and colors
		Running playground code
	Exploring data types
		Representing integers
		Representing floating-point numbers
		Representing Booleans
		Representing strings
		Using common data types in the playground
	Exploring constants and variables
	Understanding type inference and type safety
		Using type annotation to specify a type
		Using type safety to check values
	Exploring operators
		Using arithmetic operators
		Using compound assignment operators
		Using comparison operators
		Using logical operators
		Performing string operations
	Using the print() instruction
	Summary
Chapter 3: Conditionals and Optionals
	Technical requirements
	Introducing conditionals
		Using if statements
		Using switch statements
	Introducing optionals
		Using optionals and optional binding
	Summary
Chapter 4: Range Operators and Loops
	Technical requirements
	Exploring range operators
	Exploring loops
		Using the for-in loop
		Using the while loop
		The repeat-while loop
	Summary
Chapter 5: Collection Types
	Technical requirements
	Understanding arrays
		Creating an array
		Checking the number of elements in an array
		Adding a new element to an array
		Accessing an array element
		Assigning a new value to a particular index
		Removing an element from an array
		Iterating over an array
	Understanding dictionaries
		Creating a dictionary
		Checking the number of elements in a dictionary
		Adding a new element to a dictionary
		Accessing a dictionary element
		Assigning a new value to an existing key
		Removing an element from a dictionary
		Iterating over a dictionary
	Understanding sets
		Creating a set
		Checking the number of elements in a set
		Adding a new element to a set
		Checking whether a set contains an element
		Removing an item from a set
		Iterating over a set
		Exploring set operations
		Exploring set membership and equality
	Summary
Chapter 6: Functions and Closures
	Technical requirements
	Understanding functions
		Creating a function
		Using custom argument labels
		Using nested functions
		Using functions as return types
		Using functions as parameters
		Using a guard statement to exit a function early
	Understanding closures
		Simplifying closures
	Summary
Chapter 7: Classes, Structures, and Enumerations
	Technical requirements
	Understanding classes
		Creating a class declaration
		Making an instance of the class
		Making a subclass
		Overriding a superclass method
	Understanding structures
		Creating a structure declaration
		Making an instance of the structure
		Comparing value types and references types
		Deciding between classes and structures
	Understanding enumerations
		Creating an enumeration
	Summary
Chapter 8: Protocols, Extensions, and Error Handling
	Technical requirements
	Understanding protocols
		Creating a protocol declaration
	Understanding extensions
		Adopting a protocol via an extension
		Creating an array of different types of objects
	Exploring error handling
	Summary
Section 2:Design
Chapter 9: Setting Up the User Interface
	Technical requirements
	Learning useful terms in iOS development
	Touring the Let\'s Eat app
		Using the Explore screen
		Using the Locations screen
		Using the Restaurant List screen
		Using the Restaurant Detail screen
		Using the Review Form screen
		Using the Photo Filter screen
		Using the Map screen
	Creating a new Xcode project
	Setting up a tab bar controller scene
		Setting the titles of the tab bar\'s buttons
		Adding the Assets.xcassets file
		Adding the icons for the Explore and Map buttons
	Setting up the Launch screen
		Configuring the Launch screen\'s background color
		Adding a logo and constraints to the Launch screen
		Configuring Interface Builder
	Summary
Chapter 10: Building Your User Interface
	Adding a collection view to the Explore screen
	Connecting storyboard elements to outlets in a view controller
		Adding a Cocoa Touch Class file to your project
		Connecting storyboard elements to the view controller
	Configuring data source methods for the collection view
		Setting the delegate and data source properties of the collection view
		Adopting the UICollectionViewDataSource and UICollectionViewDelegate protocols
	Adding a section header to the collection view
	Configuring storyboard element sizes
	Presenting a view modally
		Adding a button to the collection view header
		Adding a new view controller scene
		Adding Cancel and Done buttons to the navigation bar
	Summary
Chapter 11: Finishing Up Your User Interface
	Technical requirements
	Adding a table view to the Locations screen
	Implementing the Restaurant List screen
		Declaring the RestaurantListViewController class
		Adopting the delegate and data source protocols
		Presenting the Restaurant List screen
	Implementing the Restaurant Detail screen
		Implementing the Review Form screen
	Implementing the Map screen
	Summary
Chapter 12: Modifying and Configuring Cells
	Technical requirements
	Modifying the Explore screen section header
		Adding Auto Layout to the Explore screen\'s section header
	Modifying the exploreCell collection view cell
	Modifying the restaurantCell collection view cell
		Adding Auto Layout constraints to the restaurantCell collection view cell
	Configuring the locationCell table view cell
	Summary
Section 3:Code
Chapter 13: Getting Started with MVC and Collection Views
	Technical requirements
	Understanding the Model-View-Controller design pattern
	Exploring controllers and classes
		Understanding collection views
		Revisiting the Explore and Restaurant List screens
	Summary
Chapter 14: Getting Data into Collection Views
	Technical requirements
	Understanding model objects
	Understanding .plist files
	Creating a structure to represent a cuisine
	Implementing a data manager class to read data from a .plist file
		Using the data manager to initialize ExploreItem instances
	Displaying data in a collection view
		Connecting the outlets in exploreCell
		Implementing additional data manager methods
		Updating the data source methods in ExploreViewController
	Summary
Chapter 15: Getting Started with Table Views
	Technical requirements
	Understanding table views
	Creating the LocationViewController class
		Connecting the table view to the LocationViewController class
		Adding the data source and delegate methods
	Adding location data for the table view
	Creating the LocationDataManager class
		Displaying data in a table view
	Summary
Chapter 16: Getting Started with MapKit
	Technical requirements
	Understanding and creating annotations
		Creating the RestaurantItem class
		Creating the MapDataManager class
		Creating the DataManager protocol
		Refactoring the MapDataManager class
		Refactoring the ExploreDataManager class
	Adding annotations to a map view
		Creating the MapViewController class
		Connecting the outlets for the map view
		Setting the map view region to be displayed
		Displaying MKAnnotationView instances on the map view
		Creating custom MKAnnotationView instances
	Going from the Map screen to the Restaurant Detail screen
		Creating and configuring a storyboard reference
		Performing the showDetail segue
		Passing data to the Restaurant Detail screen
	Organizing your code
		Refactoring the ExploreViewController class
		Using the // MARK: syntax
		Refactoring the RestaurantListViewController class
		Refactoring the LocationViewController class
		Refactoring the MapViewController class
	Summary
Chapter 17: Getting Started with JSON Files
	Technical requirements
	Getting data from JSON files
		Understanding the JSON format
		Creating the RestaurantDataManager class
	Using data from JSON files in your app
		Configuring the MapDataManager instance to use data from the RestaurantDataManager instance
		Storing a user-selected location
		Adding a view controller for the section header on the Explore screen
		Connecting the section header\'s label to the ExploreViewController class
		Adding an unwind action method to the Done button
		Selecting only one location on the Locations screen
		Passing location and cuisine information to the RestaurantListViewController instance
		Creating a view controller for the cells on the Restaurant List screen
		Connecting the outlets for the RestaurantCell class
		Displaying a custom UIView to indicate no data is available
		Displaying a list of restaurants on the Restaurant List screen
	Summary
Chapter 18: Displaying Data in a Static Table View
	Technical requirements
	Setting up outlets for the RestaurantDetailViewController class
	Displaying data in the static table view
	Passing data to the RestaurantDetailViewController instance
	Summary
Chapter 19: Getting Started with Custom UIControls
	Technical requirements
	Creating a custom UIControl subclass
		Displaying stars in your custom UIControl subclass
	Adding support for touch events
	Implementing an unwind method for the Cancel button
	Creating the ReviewFormViewController class
	Summary
Chapter 20: Getting Started with Cameras and Photo Libraries
	Technical requirements
	Understanding filters
	Creating model objects for the Photo Filter screen
	Creating the ImageFiltering protocol
	Creating view controllers for the Photo Filter screen
		Creating a view controller for the collection view cells
		Creating a view controller for the Photo Filter screen
	Getting permission to use the camera or photo library
	Summary
Chapter 21: Understanding Core Data
	Technical requirements
	Introducing Core Data
	Implementing Core Data components for your app
		Creating a data model
		Creating ReviewItem
		Creating RestaurantPhotoItem
		Creating a Core Data manager
	Understanding how saving and loading works
		Passing RestaurantID to the ReviewFormViewController instance
	Updating the PhotoFilterViewController class to save photos
	Displaying saved reviews and photos on the Restaurant Detail screen
	Calculating a restaurant\'s overall rating
	Summary
Section 4:Features
Chapter 22: Getting Started with Apple Silicon Macs
	Technical requirements
	Fixing user interface issues
	Making your app run on all iOS devices
		Identifying device type
		Understanding size classes
		Updating the Explore screen
		Updating the Restaurant List screen
	Updating the app to work on macOS
	Summary
Chapter 23: Getting Started with SwiftUI
	Technical requirements
	Creating a SwiftUI Xcode Project
	Creating the Restaurant List screen
	Adding model objects and configuring navigation
	Using UIKit and SwiftUI views together
	Completing the Restaurant Detail screen
	Summary
Chapter 24: Getting Started with Widgets
	Technical requirements
	Introducing widgets
	Adding a widget target to your app
	Providing timeline entries to your widget
	Customizing your widget\'s view
	Adding a widget to your Home Screen
	Summary
Chapter 25: Getting Started with App Clips
	Technical requirements
	Introducing app clips
	Adding an app clip to your project
	Configuring your app clip
	Passing restaurant data to the Restaurant Detail screen
	Summary
Chapter 26: Testing and Submitting Your App to the App Store
	Technical requirements
	Getting an Apple Developer account
	Exploring your Apple Developer account
		Generating a certificate signing request
		Creating development and distribution certificates
		Registering an App ID
		Registering your devices
		Creating provisioning profiles
	Submitting your app to the App Store
		Creating icons for your app
		Creating screenshots for your app
		Creating an App Store listing
		Creating an archive build
		Completing the information in App Store Connect
	Testing your app
		Testing your app internally
		Testing your app externally
	Summary
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Index