What is EventChannel in Flutter?

EventChannel is used for continuous, streaming communication from native platform code to Dart — unlike MethodChannel which is a one-shot request/response. The native side uses a StreamHandler to push events (sensor readings, Bluetooth states, connectivity changes) into an event sink. On the Dart side, you listen to the channel as a Stream: EventChannel("my_channel").receiveBroadcastStream().listen((event) { ... }). EventChannel is the correct choice for any native data that updates continuously over time.