iOS Development: Architecture

Explore the fundamental concepts behind iOS application architecture and design best practices.

Introduction

• The value in architecting your apps
• What you should know

1. UML Basics

• A brief introduction to UML
• The use case diagram
• The class diagram
• The sequence diagram

2. The iOS App Life Cycle

• The app launch sequence
• Walking through the launch sequence
• App state preservation
• App state restoration
• The main run loop
• Subclassing UI application

3. Fundamental Architectural Design Patterns

• Introduction to fundamental architectural design patterns
• The model-view-controller
• The model-view-presenter
• MVP example
• Refactoring to MVP: Model
• Refactoring to MVP: Presenter
• Refactoring to MVP: View controller
• The Model-View-ViewModel pattern
• Implementing one-way binding, part 1
• Implementing one-way binding, part 2

4. App State Transitions

• The app delegate
• App state changes
• Demo: Define the states
• Demo: Instrument delegate calls

5. Building Responsive Apps

• The main UI thread
• Concurrency
• Moving work off the main thread
• Custom concurrent queues
• Deadlocks

6. The SOLID Principles

• Introduction to the SOLID principles
• Single responsibility
• The open/closed principle
• Liskov substitution
• Interface segregation
• Dependency inversion

7. Communication between Apps

• URL scheme-based communication
• Calling an app from another app
• URL scheme whitelist
• Passing parameters between apps
• Display the message, part 1
• Display the message, part 2
• AirDrop

8. Efficiency and Performance

• Respond to memory warnings via delegates
• Dispatch source memory pressure
• Optimizing for performance
• Analyze your app using Instruments

Conclusion

• Next steps