Decoding Dependency & Dagger

This was a talk on DI and Dagger (Getting started with DI) in the Blrdroid March'18 meetup, which was a Women's TechMaker's event. Covering the why, what and how of dependecy injection and Dagger.

Transcript

1. Decoding Dependency & Dagger Getting started with DI Ramya K @ramyakrishnaa14
2. Agenda • Dependency in Code ◦ Problems with Dependency ◦ What is Dependency Injection ◦ How Dagger with help in solving the Dependency Problem • Dagger annotations ◦ @Inject, @Component, ◦ @Module, @Provides, ◦ @Singleton, @Scope, @CustomScope,static @Provides ◦ @Named /@Qualifiers • References
3. Dependency WeatherReporter LocationManager WeatherService (Dependency graph)
4. Dependency Injection • Reusability • Testability • Maintainability
5. Logger APIService GPSProvider WeatherReporter Location Manager Weather Service
6. • @Inject • @Component
7. • @Module • @Provides
8. Object instantiation • @Singleton • @Scopes • @Custom Scopes • Static @Provides
9. @Named/@Qualifiers @Qualifiers
11. References: • https://medium.com/@isoron/ • https://medium.com/@harivigneshjayapalan • https://google.github.io/dagger/ • Talks by Mike Nakhimovich
12. Thank You