Android Performance.

Baseline profiles, R8, Macrobenchmark, Perfetto, startup time and ANR triage. Covers 8 sub-skills.

• Android Performance · 1 of 3

  App Startup Time

  Which platform call lets an app announce that its startup content has finished loading?

  AonPostResume() on the Activity baseBonEnterAnimationComplete() on ActivityCreportFullyDrawn() on the ActivityDonWindowFocusChanged() on the Activity

• Android Performance · 2 of 3

  Memory Leaks & LeakCanary

  What is the default value of LeakCanary.Config.maxStoredHeapDumps on a device?

  AThree heap dumpsBTwelve heap dumpsCSeven heap dumpsDTwenty heap dumps

• Android Performance · 3 of 3

  Perfetto & System Tracing

  How many tracing sessions does the traced daemon allow at once on one device?

  A15 concurrent sessionsB10 sessions for statsdC8 instances per producerD5 sessions per UID limit