getTextStream static method
Sets up a broadcast stream for receiving incoming link change events.
Returns a broadcast Stream which emits events to listeners as follows:
- a decoded data (String) event (possibly null) for each successful event received from the platform plugin;
- an error event containing a PlatformException for each error event received from the platform plugin.
Errors occurring during stream activation or deactivation are reported
through the FlutterError
facility. Stream activation happens only when
stream listener count changes from 0 to 1. Stream deactivation happens
only when stream listener count changes from 1 to 0.
If the app was started by a link intent or user activity the stream will
not emit that initial one - query either the getInitialText
instead.
Implementation
static Stream<String> getTextStream() {
if (_streamLink == null) {
_streamLink = _eChannelLink.receiveBroadcastStream("text").cast<String>();
}
return _streamLink!;
}