Firebase Crash Reporting automatically generates reports for fatal errors (or uncaught exceptions).

You can create your custom report using:

FirebaseCrash.report(new Exception("My first Android non-fatal error"));

You can check in the log when FirebaseCrash initialized the module:

07–20 08:57:24.442 D/FirebaseCrashApiImpl: FirebaseCrash reporting API initialized 07–20 08:57:24.442 I/FirebaseCrash: FirebaseCrash reporting initialized com.google.firebase.crash.internal.zzg@3333d325 07–20 08:57:24.442 D/FirebaseApp: Initialized class com.google.firebase.crash.FirebaseCrash.

And then when it sent the exception:

07–20 08:57:47.052 D/FirebaseCrashApiImpl: throwable java.lang.Exception: My first Android non-fatal error 07–20 08:58:18.822 D/FirebaseCrashSenderServiceImpl: Response code: 200 07–20 08:58:18.822 D/FirebaseCrashSenderServiceImpl: Report sent

You can add custom logs to your report with

FirebaseCrash.log("Activity created");