(Android) Transformers — Bytecode in Disguise!

on YouTube ↗42m

" summary

Drops an implemented recipe: during the Android build a Gradle Transform rewrites bytecode with ASM so every URL.openConnection becomes an invokevirtual→invokestatic to a companion SDK that returns a decorated HttpURLConnection which records timings and sends them to Firebase Performance Monitoring. Earlier builds required ugly Ant/Gradle task reflection hacks; now the official Transform API is used. Attention to incremental builds, skipping the companion library, and full method-delegating decorators keeps instrumentation fast and correct.

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" chapters (10)

1. 0:00Introduction
2. 1:20Firebase Performance Monitoring
3. 3:58HTTP Data Collection
4. 6:22Class Changes
5. 10:50Gradle Plugin
6. 16:58ASM
7. 18:26JVM
8. 23:06Instrumentation
9. 29:57One Weird Trick
10. 37:44Questions

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