EventChannel class Null safety
A named channel for communicating with platform plugins using event streams.
Stream setup requests are encoded into binary before being sent,
and binary events and errors received are decoded into Dart values.
The MethodCodec used must be compatible with the one used by the platform
plugin. This can be achieved by creating an EventChannel counterpart of
this channel on the platform side. The Dart type of events sent and received
is dynamic, 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.
Constructors
- EventChannel(String name, [MethodCodec codec = const StandardMethodCodec(), BinaryMessenger? binaryMessenger])
-
Creates an EventChannel with the specified name.
const
Properties
- binaryMessenger → BinaryMessenger
-
The messenger used by this channel to send platform messages, not null.
read-only
- codec → MethodCodec
-
The message codec used by this channel, not null.
final
- hashCode → int
-
The hash code for this object.
read-onlyinherited
- name → String
-
The logical channel on which communication happens, not null.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
read-onlyinherited
Methods
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a non-existent method or property is accessed.
inherited
-
receiveBroadcastStream(
[dynamic arguments]) → Stream - Sets up a broadcast stream for receiving events on this channel.
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited