listen method
Listen for op
events.
op
The StateOperation to listen.
listener
The listener callback.
Implementation
State listen(StateOperation op, StateEventListener listener) {
_registerEventListener(op, listener);
return this;
}
Listen for op
events.
op
The StateOperation to listen.
listener
The listener callback.
State listen(StateOperation op, StateEventListener listener) {
_registerEventListener(op, listener);
return this;
}