ViewModel vs Presenter Pattern

Developers should learn ViewModel to build robust Android apps that handle configuration changes without data loss, as it decouples UI state from activities or fragments meets developers should learn and use the presenter pattern when building applications with complex uis, especially in desktop, web, or mobile development where testability and clean architecture are priorities. Here's our take.

ViewModel

Nice Pick

Developers should learn ViewModel to build robust Android apps that handle configuration changes without data loss, as it decouples UI state from activities or fragments

Pros

• It's essential for implementing the MVVM pattern, improving code organization, and enabling easier unit testing by isolating data handling from the UI layer
• Related to: android-jetpack, mvvm-architecture

Cons

• Specific tradeoffs depend on your use case

Presenter Pattern

Developers should learn and use the Presenter Pattern when building applications with complex UIs, especially in desktop, web, or mobile development where testability and clean architecture are priorities

Pros

• It is particularly useful in scenarios requiring unit testing of presentation logic without UI dependencies, such as in enterprise applications or when following MVP, MVVM, or similar patterns to enhance code organization
• Related to: model-view-presenter, model-view-viewmodel

Cons

• Specific tradeoffs depend on your use case

The Verdict

Use ViewModel if: You want it's essential for implementing the mvvm pattern, improving code organization, and enabling easier unit testing by isolating data handling from the ui layer and can live with specific tradeoffs depend on your use case.

Use Presenter Pattern if: You prioritize it is particularly useful in scenarios requiring unit testing of presentation logic without ui dependencies, such as in enterprise applications or when following mvp, mvvm, or similar patterns to enhance code organization over what ViewModel offers.

The Bottom Line

ViewModel wins

Developers should learn ViewModel to build robust Android apps that handle configuration changes without data loss, as it decouples UI state from activities or fragments