addCustomActionCallback static method

void addCustomActionCallback(
  1. Future handler(
    1. MethodCall call
    )?
)

Sets a callback for receiving method calls on this channel.

The given callback will replace the currently registered callback for this channel, if any. To remove the handler, pass null as the handler argument.

Implementation

static void addCustomActionCallback(
    Future<dynamic> Function(MethodCall call)? handler) {
  _channel.setMethodCallHandler(handler);
}