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
dynamic, but only values supported by the specified MethodCodec can
The logical identity of the channel is given by its name. Identically named channels will interfere with each other's communication.
- EventChannel(String name, [MethodCodec codec = const StandardMethodCodec(), BinaryMessenger? binaryMessenger])
Creates an EventChannel with the specified name.
- binaryMessenger → BinaryMessenger
The messenger which sends the bytes for this channel.
- codec → MethodCodec
The message codec used by this channel, not null.
- hashCode → int
The hash code for this object.
- name → String
The logical channel on which communication happens, not null.
- runtimeType → Type
A representation of the runtime type of the object.
Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed.
[dynamic arguments]) → Stream
- Sets up a broadcast stream for receiving events on this channel.
) → String
A string representation of this object.
Object other) → bool
The equality operator.