public final class EventChannel extends Object
Incoming requests for event stream setup are decoded from binary on receipt, and
Java responses and events are encoded into binary before being transmitted back
to Flutter. The
MethodCodec used must be compatible with the one used by
the Flutter application. This can be achieved by creating an
counterpart of this channel on the Dart side. The Java type of stream configuration arguments,
events, and error details is
Object, but only values supported by the specified
MethodCodec can be used.
The logical identity of the channel is given by its name. Identically named channels will interfere with each other's communication.
|Modifier and Type||Class and Description|
Handler of stream setup and tear-down requests.
|Constructor and Description|
|Modifier and Type||Method and Description|
Registers a stream handler on this channel.
public EventChannel(BinaryMessenger messenger, String name)
BinaryMessengerand with the specified name and the standard
name- a channel name String.
public EventChannel(BinaryMessenger messenger, String name, MethodCodec codec)
BinaryMessengerand with the specified name and
@UiThread public void setStreamHandler(EventChannel.StreamHandler handler)
Overrides any existing handler registration for (the name of) this channel.
If no handler has been registered, any incoming stream setup requests will be handled silently by providing an empty stream.
EventChannel.StreamHandler, or null to deregister.