Creates an HttpMetric for a URL and HTTP method (React Native).
Returns a FirebasePerformance instance for the given app (aligned with the Firebase JS SDK). Can only be called once per app during initialization in typical usage.
Creates a ScreenTrace with the given screen name. Android only; throws if hardware acceleration is disabled or if Android is 9.0 or 9.1.
Creates a ScreenTrace and starts it immediately. Android only; throws if hardware acceleration is disabled or if Android is 9.0 or 9.1.
Returns a new PerformanceTrace instance.
Returns a FirebasePerformance instance for the given app.