Scalable iOS Modularization: Learn From Scratch

Explore how dependency containers act as dictionaries that store and selectively resolve dependencies, preventing unnecessary injections and solving circular dependencies in modular iOS flows.

Design and implement a dependency container in a new Swift package, configuring single instance and closure-based dependencies, using object identifiers, and preparing registration and resolving methods.

Develop and test a Swift dependency container: register and resolve single instance and closure based dependencies using an object identifier, threaded access, and fatal errors for missing registrations in code.

Learn to implement unit tests for a dependency container, covering singleton and closure-based registrations, protocol-based dependencies, and safe concurrent resolution.

Develop a dedicated analytics interface package to expose the public API, move protocol, analytics event, and mocks into it, enable cross-package interaction, and prepare for dependency container usage.

Create a dedicated analytics implementation package and move the analytics event tracker into it, enabling the main project to remain lightweight while other packages import the analytics interface.

Import and wire the analytics package in the main project, expose the analytics event tracker publicly, and demonstrate path management and modularization to loosely couple interfaces and implementations.

Create a utilities package for extensions, including a public localized strings extension, integrate it into the main iOS project, and plan subpackages for foundation and UIKit to avoid circular dependencies.

Modularize app features by creating an artist detail package and moving the detail and artist code into dedicated modules, preparing for error states, tests, and interface wiring.

Continue artist details implementation by importing analytics interface, common models, and dependency container into the retail module, configuring relative package paths, and resolving build issues with explicit imports.

Learn to create a temporary interface package for the main target to open song details from the list detail module, implement a gateway, and register it in the dependency container.

Move the home module to its own implementation package, add dependencies and tests, and expose a home gateway for initialization. Prepare the project for localization across packages.

Remove the main test target after migrating tests to their own package, delete the empty folder, and remove modularization to start the test target as well.

Learn how to solve localization challenges in scalable iOS modularization by creating a shared localization package, moving strings into resources, and exposing them via a string extension.

Learn to integrate the localization package across the main project and subpackages, switch to localized common extensions, and display localized strings in home, song details, and artist details views.

Learn how to modularize localization by moving song details strings from the localization package into the song details package, using a bundle-based localized string extension and resources for localizable files.

Learn to use images from packages by adding asset catalogs and providing the correct module bundle so they render in views, with guidance on asset placement and localization.