iOS-101: iOS Application Development Intermediate

Upon completion of this program, participants should be able to:

• Create a reasonably complex iOS application, usingstoryboards, table view, table view controller, navigationcontrollers, camera, auto layout, gesture recognisers, pushview controllers and modal view controllers.
• Test an application using unit tests and debugging tools.
• Save application data so it persists between runs.
• Upload the app to the App Store.

Knowledge of a programming language is advantageous.

This program is targeted for experienced developers with no programming experience in iOS Development

• A Mac computer running macOS 10.15 Catalina or 11.0 Big Sur
• Xcode 12.x
• Swift 5.x

Food Tracker - A simple meal tracking app. This app shows a list of meals, including a meal name, rating, and photo. A user can add a new meal, and remove or edit an existing meal. To add a new meal or edit an existing one, users navigate to a different screen where they can specify a name, rating, and photo for a particular meal.

Module 1: Getting Started

• Get the tools.
• Your first program
• Simple values
• Explicit type declaration
• Conversion
• Including values in strings
• Arrays and Dictionaries
• Initializer syntax
• Control flow
• Optionals
• ?? operator
• Switches
• for-in
• while
• Loop indexes
• Functions
• Argument labels
• Tuples
• Variable number of arguments
• Nested functions
• Functions as return values.
• Functions as arguments
• Closures
• Writing closures more concisely
• Class
• Instance
• Initializers
• Subclass
• Property getters and setters
• willSet and didSet
• Working with optional values
• Enumerations
• Raw values
• init?(rawValue:)
• Case values
• Reference
• Values associated with case.
• Structures
• Protocols
• Adopting a protocol (class)
• Adopting a protocol (struct)
• Extension
• Protocol type
• Error handling
• Throw and Throws
• Do-Catch
• Multiple catch blocks
• try?
• Defer

Module 2: Build a basic UI

• Create a project in Xcode.
• Identify the function of key files that are created with an Xcodeproject template.
• Open and switch between files in a project
• Run an app in Simulator.
• Add, move, and resize UI elements in a storyboard.
• Edit the attributes of UI elements in a storyboard using the Attributes inspector.
• View and rearrange UI elements using the outline view.
• Preview a storyboard UI using the Preview assistant editor.
• Lay out a UI that automatically adapts to the user’s device size using Auto Layout

Module 3: Connect the UI to code.

• Explain the relationship between a scene in a storyboard and the underlying view controller.
• Create outlet and action connections between UI elements in a storyboard and source code.
• Process user input from a text field and display the result in the UI.
• Make a class conform to a protocol.
• Understand the delegation pattern.
• Follow the target-action pattern when designing app architecture.

Module 4: Work with View Controllers

• Understand the view controller life cycle and when its callbacks occur, such as viewDidLoad, viewWillAppear and view DidAppear.
• Pass data between view controllers
• Dismiss a view controller.
• Use gesture recognizers as an additional level of generating events.
• Anticipate object behaviour based on the UIView/UIControlclass hierarchy.
• Use the asset catalogue to add image assets to a project.

Day 2

Module 5: Implement a Custom Control

• Create and associate custom source code files with elements in a storyboard.
• Define a custom class.
• Implement an initializer on a custom class.
• Use UIView as a container.
• Understand how to display views programmatically.

Module 6: Define your data model

• Create a data model.
• Write failable initializers on a custom class.
• Demonstrate a conceptual understanding of the difference between failable and non failable initializers.
• Test a data model by writing and running unit tests.

Module 7: Create a table view

• Understand the key components of a table view.
• Create and design a custom table view cell.
• Understand the roles of table view delegates and data sources.
• Use an array to store and work with data.
• Display dynamic data in a table view.

Module 8: Implement Navigation

• Embed an existing view controller within a navigation controller in a storyboard.
• Create segues between view controllers.
• Edit the attributes of a segue in a storyboard using the Attributes inspector.
• Pass data between view controllers using the prepareForSegue(_:sender:) method
• Perform an unwind segue.
• Use stack views to create robust, flexible layouts.

Day 3

Module 9: Implement Edit and Delete behaviour

• Differentiate between push and modal navigation.
• Dismiss view controllers based on their presentation style.
• Understand when to use different type cast operators for down casting.
• Leverage optional binding to check for complex conditions.
• Use segues identifiers to determine which segue is occurring.

Module 10: Persist Data

• Create a structure.
• Understand the difference between static properties and instance properties.
• Use the NSCoding protocol to read and write data.

Module 11: Uploading your app to the App Store

• Getting an Apple Developer Account
• Exploring the Apple Developer Account
• Submitting your app to the App Store
• Internal and external testing