CrashlyticsTree.kt

    /**
     * A tree which logs important information for crash reporting.
     */
    private class CrashReportingTree : Timber.Tree() {
        override fun log(priority: Int, tag: String?, message: String, t: Throwable?) {
            if (priority == Log.VERBOSE || priority == Log.DEBUG) {
                return
            }
            Crashlytics.log(priority, tag, message)
            if (t != null) {
                if (priority == Log.ERROR) {
                    Crashlytics.logException(t)
                } else if (priority == Log.WARN) {
                    Crashlytics.logException(t)
                }
            }
        }
    }
    
    Fabric.with(this, Crashlytics())
    Timber.plant(CrashReportingTree())