Summary of Understanding MVVM architecture in Android - MAD course Demo class
The video titled "Understanding MVVM architecture in Android - MAD course Demo class" delves into the MVVM architecture in Android, highlighting key concepts and best practices for organizing code effectively. The main speaker covers the importance of architecture, MVVM, view models, and use cases in Android development. Throughout the video, the speaker emphasizes the significance of taking breaks during the session.
Key Points Covered:
- Introduction to architecture and organizing code efficiently
- Comparison of Groovy DSL and Kotlin DSL for build files
- Explanation of key elements in build files like application ID, minimum SDK, target SDK, version code, and version name
- Exploration of testing runners, build types, compilation options, and version catalogs for defining dependencies
- Overview of MVC, MVP, and MVVM architecture patterns
- Detailed explanation of MVC and MVP patterns focusing on separation of concerns and responsibilities
- Introduction to MVVM architecture pattern and the role of view models in separating UI from data
- Demonstration of creating a user database, view model, and model classes in code
- Insights on repositories and view models within the MVVM architecture
- Importance of extracting business logic into repositories to avoid duplication in multiple view models
- Introduction of use cases to encapsulate complex business logic and maintain a simple return type
- Use of use cases to prevent bloating in view models
- Reading official documentation for a deeper understanding of Android development concepts
- Distinguishing between View Model and Android View Model to avoid memory leaks
- Utilizing shared view models for reusing logic across multiple views
Additional Insights
- Discussion on upcoming topics such as coroutines and assignments evaluation
- Contributions from Rajesh (instructor) and participants in the class
- Focus on understanding and implementing the MVVM architecture effectively in Android development
Notable Quotes
— 35:08 — « View model is a class that is responsible for preparing and managing the data for an activity or fragment. [2714] It also handles the communication of the activity/fragment with the rest of the application - calling the business logic classes. »
— 120:08 — « awesome uh I think probably yeah its a as you can see uh the domain layer is responsible for encapsulating complex business logic so if you want to make your VM clear uh you want to make it look clean then yes that complex Logics can be delegated to the use cases uh mvvm »
Category
Educational