private async Task LoadImage(bool isRefresh = false)
        {
            await Task.Delay(100);

            try
            {
                fairyImageView.SetImageDrawable(null);
                imageDrawable?.Dispose();
                loadingLayout.Visibility = ViewStates.Visible;
                loadingIndicator.SmoothToShow();
                loadingText.SetText(Resource.String.Common_Load);

                string imageName = $"{fairy.DicNumber}_{imageNum}";
                string imagePath = Path.Combine(ETC.cachePath, "Fairy", "Normal", $"{imageName}.gfdcache");
                string url       = Path.Combine(ETC.server, "Data", "Images", "Fairy", "Normal", $"{imageName}.png");

                if (!File.Exists(imagePath) || isRefresh)
                {
                    string dTemp = Resources.GetString(Resource.String.Common_Downloading);

                    loadingText.Text = dTemp;

                    using (var wc = new WebClient())
                    {
                        wc.DownloadProgressChanged += (sender, e) => { loadingText.Text = $"{dTemp}{e.ProgressPercentage}%"; };

                        await wc.DownloadFileTaskAsync(url, imagePath);
                    }
                }

                await Task.Delay(500);

                loadingText.SetText(Resource.String.Common_Load);

                imageDrawable = await Drawable.CreateFromPathAsync(imagePath);

                fairyImageView.SetImageDrawable(imageDrawable);

                fairyNumTitle.Text = $"{imageNum} 단계";
                imageStatus.Text   = $"{fairy.Name} - {imageNum}단계";
            }
            catch (Exception ex)
            {
                ETC.LogError(ex, this);
                ETC.ShowSnackbar(snackbarLayout, Resource.String.ImageLoad_Fail, Snackbar.LengthLong, Android.Graphics.Color.DarkRed);
            }
            finally
            {
                loadingText.Text = "";
                loadingIndicator.SmoothToHide();
                loadingLayout.Visibility = ViewStates.Gone;
            }
        }
        private async Task <bool> DownloadImage()
        {
            try
            {
                loadingIndicator.SmoothToShow();

                if (!await CheckExistGuideImage())
                {
                    loadingIndicator.SmoothToHide();
                    loadingText.SetText(Resource.String.DollDBGuideImageViewer_LoadingText_NotExistServerImage);

                    return(false);
                }

                string defaultText = Resources.GetString(Resource.String.DollDBGuideImageViewer_LoadingText_DownloadImage);

                loadingText.Text = defaultText;

                await Task.Delay(500);

                using (var wc = new WebClient())
                {
                    wc.DownloadProgressChanged += (sender, e) => { loadingText.Text = $"{defaultText}{e.ProgressPercentage}%"; };

                    await wc.DownloadFileTaskAsync(serverImagePath, localImagePath);
                }

                await Task.Delay(500);
            }
            catch (Exception ex)
            {
                ETC.LogError(ex, this);
                loadingIndicator.SmoothToHide();
                loadingText.SetText(Resource.String.DollDBGuideImageViewer_LoadingText_FailDownloadImage);

                return(false);
            }

            return(true);
        }
        private async Task LoadImage(int costumeIndex, bool isRefresh = false)
        {
            await Task.Delay(100);

            string imageName = doll.DicNumber.ToString();

            try
            {
                dollImageView.SetImageDrawable(null);
                imageDrawable?.Dispose();
                loadingLayout.Visibility = ViewStates.Visible;
                loadingIndicator.SmoothToShow();
                MainThread.BeginInvokeOnMainThread(() => { loadingText.SetText(Resource.String.Common_Load); });

                if (costumeIndex >= 1)
                {
                    imageName += $"_{costumeIndex + 1}";
                }
                else if ((costumeIndex == 0) && (modIndex == 3))
                {
                    imageName += "_M";
                }

                imageName += isDamage ? "_D" : "";

                if (doll.HasCensored && enableCensored && (modIndex != 3))
                {
                    imageName += CheckCensorType() ? "_C" : "";
                }

                string imagePath = Path.Combine(ETC.cachePath, "Doll", "Normal", $"{imageName}.gfdcache");
                string url       = Path.Combine(ETC.server, "Data", "Images", "Guns", "Normal", $"{imageName}.png");

                if (!File.Exists(imagePath) || isRefresh)
                {
                    string dTemp = Resources.GetString(Resource.String.Common_Downloading);

                    MainThread.BeginInvokeOnMainThread(() => { loadingText.Text = dTemp; });

                    using (var wc = new WebClient())
                    {
                        wc.DownloadProgressChanged += (sender, e) => { loadingText.Text = $"{dTemp}{e.ProgressPercentage}%"; };

                        await wc.DownloadFileTaskAsync(url, imagePath);
                    }
                }

                await Task.Delay(500);

                MainThread.BeginInvokeOnMainThread(() => { loadingText.SetText(Resource.String.Common_Load); });

                imageDrawable = await Drawable.CreateFromPathAsync(imagePath);

                dollImageView.SetImageDrawable(imageDrawable);

                string damageText = isDamage ? Resources.GetString(Resource.String.DollDBImageViewer_ImageStatusDamage) : Resources.GetString(Resource.String.DollDBImageViewer_ImageStatusNormal);
                string censorText = Resources.GetString(Resource.String.DollDBImageViewer_ImageCensored);

                imageStatus.Text = censorMenuItem.IsVisible ? $"{doll.Name} - {costumes[costumeIndex]} - {damageText} - {censorText}{(enableCensored ? "O" : "X")}" :
                                   $"{doll.Name} - {costumes[costumeIndex]} - {damageText}";
            }
            catch (WebException ex)
            {
                ETC.LogError(ex, this);
                ETC.ShowSnackbar(snackbarLayout, Resource.String.ImageLoad_Fail, Snackbar.LengthLong, Android.Graphics.Color.DarkRed);
            }
            catch (Exception ex)
            {
                ETC.LogError(ex, this);
                ETC.ShowSnackbar(snackbarLayout, Resource.String.ImageLoad_Fail, Snackbar.LengthLong, Android.Graphics.Color.DarkRed);
            }
            finally
            {
                loadingText.Text = "";
                loadingIndicator.SmoothToHide();
                loadingLayout.Visibility = ViewStates.Gone;
            }
        }