Data Binding Library vs findViewById

Developers should use the Data Binding Library when building Android apps to simplify UI code, improve performance by reducing view lookups, and enable reactive UI updates with observable data objects meets developers should learn findviewbyid for building android applications where direct control over ui elements is needed, such as in legacy codebases, custom view implementations, or when avoiding additional dependencies. Here's our take.

Data Binding Library

Nice Pick

Developers should use the Data Binding Library when building Android apps to simplify UI code, improve performance by reducing view lookups, and enable reactive UI updates with observable data objects

Pros

• It's particularly useful for complex layouts with dynamic data, MVVM (Model-View-ViewModel) architecture implementations, and apps requiring two-way data binding for user input handling
• Related to: android-jetpack, mvvm-architecture

Cons

• Specific tradeoffs depend on your use case

findViewById

Developers should learn findViewById for building Android applications where direct control over UI elements is needed, such as in legacy codebases, custom view implementations, or when avoiding additional dependencies

Pros

• It is essential for scenarios like setting click listeners, updating text dynamically, or animating views, providing a straightforward way to link layouts with logic without relying on data-binding libraries
• Related to: android-studio, kotlin

Cons

• Specific tradeoffs depend on your use case

The Verdict

These tools serve different purposes. Data Binding Library is a library while findViewById is a tool. We picked Data Binding Library based on overall popularity, but your choice depends on what you're building.

The Bottom Line

Data Binding Library wins

Based on overall popularity. Data Binding Library is more widely used, but findViewById excels in its own space.