*[<Null safety>](https://dart.dev/null-safety)*
void enableLifecycleEvents (Outgoing outgoing)
Initializes the shared Lifecycle instance. This is required before Lifecycle can be constructed.
Implementation
static void enableLifecycleEvents(Outgoing outgoing) {
if (_singleton == null) {
_singleton = LifecycleImpl(
outgoing: outgoing,
exitHandler: fuchsia.exit,
);
} else {
throw Exception(
'Attempted to call Lifecycle.enableLifecycleEvents after it has already been enabled. '
'Ensure that Lifecycle.enableLifecycleEvents is not called multiple times.');
}
}