How does this skill improve app testability?

It provides standardized templates for protocol-oriented programming, allowing you to easily swap production services for mock implementations during unit testing.

Which dependency injection patterns are supported?

The skill covers constructor injection, protocol-based DI, SwiftUI Environment injection, DI Containers, and the Factory pattern.

Is this skill specific to SwiftUI?

While it includes specialized patterns for SwiftUI (like EnvironmentObject), the core DI and container patterns are applicable to UIKit and general Swift development.

Does it support tvOS development?

Yes, all patterns provided are fully compatible with both iOS and tvOS platforms.

iOS Dependency Injection Guide

Name: iOS Dependency Injection Guide
Author: Kaakati

byKaakati

•

Mobile Development

Implements robust dependency injection patterns for iOS and tvOS applications using Swift and SwiftUI best practices.

About

This skill provides comprehensive guidance and implementation patterns for Dependency Injection (DI) within the Apple ecosystem. It bridges the gap between traditional architectural patterns like constructor injection and modern SwiftUI-native approaches using Environment Objects and custom Keys. By leveraging protocol-oriented programming and DI containers, this skill helps developers create modular, loosely coupled codebases that are significantly easier to test, maintain, and scale in enterprise-grade environments.

Key Features

SwiftUI-specific DI using EnvironmentObjects and custom Keys
Constructor and protocol-based injection implementation
Standardized mock injection patterns for XCTest unit testing
Guidance on singleton vs. DI architectural decisions
2 GitHub stars
Scalable Dependency Injection Containers and Factory patterns

Use Cases

Managing global application dependencies through a centralized DI container
Injecting mock services to stabilize SwiftUI Previews and automated UI tests
Decoupling ViewModels from network services to enable isolated unit testing

About

Key Features

SwiftUI-specific DI using EnvironmentObjects and custom Keys
Constructor and protocol-based injection implementation
Standardized mock injection patterns for XCTest unit testing
Guidance on singleton vs. DI architectural decisions
2 GitHub stars
Scalable Dependency Injection Containers and Factory patterns

Use Cases

Managing global application dependencies through a centralized DI container
Injecting mock services to stabilize SwiftUI Previews and automated UI tests
Decoupling ViewModels from network services to enable isolated unit testing