reject method

Implementation

Future<NEResult> reject() async {
  await _runtimeAdapter.stopRing();
  final result = await NECallEngine.instance.hangup();
  CallKitUILog.i(_tag, 'reject result = $result');
  CallState.instance.selfUser.callStatus = NECallStatus.none;
  _syncCallStateToNative();
  return NEResult(code: result.code, message: result.msg);
}