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Discover how to significantly improve your Android app's performance using the R8 optimizer in this 10-minute technical video from Android Developers' Spotlight Week. Learn why R8 is considered the best tool for achieving low-effort, high-impact performance improvements through real-world case studies from Reddit and Disney+. Explore the specific optimization areas where R8 excels, understand exactly what R8 does under the hood to enhance your app's performance, and get step-by-step guidance on enabling R8's full potential in your development workflow. Master the differences between Proguard-Android and Proguard-Android-Optimize configurations, discover how to enable R8 when not currently using it (particularly for Android Gradle Plugin 9.0 and onwards), and understand how baseline profiles complement R8 optimization. The presentation includes practical implementation guidance, performance metrics from major apps, and actionable steps you can take immediately to optimize your Android applications.
Syllabus
0:00 - Introduction
0:44 - Reddit case study
2:14 - Overall improvement areas
3:54 - What R8 does
5:09 - Enable R8’s full potential
5:52 - Proguard-Android vs Proguard-Android-Optimize Disney+ case study
7:19 - Not using R8 to enable it APG 9.0 onwards
8:12 - Baseline profiles
9:04 - Recap
9:23 - Your challenge for this week
Taught by
Android Developers