initHandler method

@override void initHandler()

Implementation

@override
void initHandler() {
  ProgressChannel.setMethodCallHandler((call) async {
    Map? arg = call.arguments;
    if (arg != null) {
      if (call.method == "onSuccess") {
        _onSuccess(arg);
      } else if (call.method == "onProgress") {
        _onProgress(arg);
      } else if (call.method == "onError") {
        _onError(arg);
      }
    }
  });
}