private async void CheckPermissions()
        {
            var status = await CrossPermissions.Current.CheckPermissionStatusAsync(Permission.Microphone);

            if (status != PermissionStatus.Granted)
            {
                var shouldRequest = await CrossPermissions.Current.ShouldShowRequestPermissionRationaleAsync(Permission.Microphone);

                if (shouldRequest)
                {
                    await AlertHelper.ShowMicRequestAlert();
                }

                var results = await CrossPermissions.Current.RequestPermissionsAsync(Permission.Microphone);

                if (results.ContainsKey(Permission.Microphone))
                {
                    status = results[Permission.Microphone];
                }
            }
            else if (status == PermissionStatus.Unknown)
            {
                await AlertHelper.ShowMicRequestDeniedAlert();
            }
        }