isKakaoTalkInstalled function Null safety

Future<bool> isKakaoTalkInstalled()

카카오톡이 설치되어 있는지 여부 확인

Implementation

Future<bool> isKakaoTalkInstalled() async {
  final isInstalled =
      await _channel.invokeMethod<bool>(CommonConstants.isKakaoTalkInstalled) ??
          false;
  return isInstalled;
}