onListen property
The callback which is called when the stream is listened to.
May be set to null, in which case no callback will happen.
Implementation
ControllerCallback get onListen;Implementation
void set onListen(void onListenHandler());The callback which is called when the stream is listened to.
May be set to null, in which case no callback will happen.
ControllerCallback get onListen;void set onListen(void onListenHandler());