private void SetImage(CachedImage oldElement = null) { Xamarin.Forms.ImageSource source = Element.Source; var ffSource = ImageSourceBinding.GetImageSourceBinding(source, Element); var placeholderSource = ImageSourceBinding.GetImageSourceBinding(Element.LoadingPlaceholder, Element); if (oldElement != null && _lastImageSource != null && ffSource != null && !ffSource.Equals(_lastImageSource) && (string.IsNullOrWhiteSpace(placeholderSource?.Path) || placeholderSource?.Stream != null)) { _lastImageSource = null; Control.Image = null; } Element.SetIsLoading(true); Cancel(); TaskParameter imageLoader = null; if (ffSource == null) { if (Control != null) { Control.Image = null; } ImageLoadingFinished(Element); } else if (ffSource.ImageSource == FFImageLoading.Work.ImageSource.Url) { imageLoader = ImageService.Instance.LoadUrl(ffSource.Path, Element.CacheDuration); } else if (ffSource.ImageSource == FFImageLoading.Work.ImageSource.CompiledResource) { imageLoader = ImageService.Instance.LoadCompiledResource(ffSource.Path); } else if (ffSource.ImageSource == FFImageLoading.Work.ImageSource.ApplicationBundle) { imageLoader = ImageService.Instance.LoadFileFromApplicationBundle(ffSource.Path); } else if (ffSource.ImageSource == FFImageLoading.Work.ImageSource.Filepath) { imageLoader = ImageService.Instance.LoadFile(ffSource.Path); } else if (ffSource.ImageSource == FFImageLoading.Work.ImageSource.Stream) { imageLoader = ImageService.Instance.LoadStream(ffSource.Stream); } if (imageLoader != null) { // CustomKeyFactory if (Element.CacheKeyFactory != null) { var bindingContext = Element.BindingContext; imageLoader.CacheKey(Element.CacheKeyFactory.GetKey(source, bindingContext)); } // LoadingPlaceholder if (Element.LoadingPlaceholder != null) { if (placeholderSource != null) { imageLoader.LoadingPlaceholder(placeholderSource.Path, placeholderSource.ImageSource); } } // ErrorPlaceholder if (Element.ErrorPlaceholder != null) { var errorPlaceholderSource = ImageSourceBinding.GetImageSourceBinding(Element.ErrorPlaceholder, Element); if (errorPlaceholderSource != null) { imageLoader.ErrorPlaceholder(errorPlaceholderSource.Path, errorPlaceholderSource.ImageSource); } } // Enable vector image source var vect1 = Element.Source as IVectorImageSource; var vect2 = Element.LoadingPlaceholder as IVectorImageSource; var vect3 = Element.ErrorPlaceholder as IVectorImageSource; if (vect1 != null) { imageLoader.WithCustomDataResolver(vect1.GetVectorDataResolver()); } if (vect2 != null) { imageLoader.WithCustomLoadingPlaceholderDataResolver(vect2.GetVectorDataResolver()); } if (vect3 != null) { imageLoader.WithCustomErrorPlaceholderDataResolver(vect3.GetVectorDataResolver()); } if (Element.CustomDataResolver != null) { imageLoader.WithCustomDataResolver(Element.CustomDataResolver); imageLoader.WithCustomLoadingPlaceholderDataResolver(Element.CustomDataResolver); imageLoader.WithCustomErrorPlaceholderDataResolver(Element.CustomDataResolver); } // Downsample if (Element.DownsampleToViewSize && (Element.Width > 0 || Element.Height > 0)) { if (Element.Height > Element.Width) { imageLoader.DownSampleInDip(height: (int)Element.Height); } else { imageLoader.DownSampleInDip(width: (int)Element.Width); } } else if (Element.DownsampleToViewSize && (Element.WidthRequest > 0 || Element.HeightRequest > 0)) { if (Element.HeightRequest > Element.WidthRequest) { imageLoader.DownSampleInDip(height: (int)Element.HeightRequest); } else { imageLoader.DownSampleInDip(width: (int)Element.WidthRequest); } } else if ((int)Element.DownsampleHeight != 0 || (int)Element.DownsampleWidth != 0) { if (Element.DownsampleHeight > Element.DownsampleWidth) { if (Element.DownsampleUseDipUnits) { imageLoader.DownSampleInDip(height: (int)Element.DownsampleHeight); } else { imageLoader.DownSample(height: (int)Element.DownsampleHeight); } } else { if (Element.DownsampleUseDipUnits) { imageLoader.DownSampleInDip(width: (int)Element.DownsampleWidth); } else { imageLoader.DownSample(width: (int)Element.DownsampleWidth); } } } // RetryCount if (Element.RetryCount > 0) { imageLoader.Retry(Element.RetryCount, Element.RetryDelay); } if (Element.BitmapOptimizations.HasValue) { imageLoader.BitmapOptimizations(Element.BitmapOptimizations.Value); } // FadeAnimation if (Element.FadeAnimationEnabled.HasValue) { imageLoader.FadeAnimation(Element.FadeAnimationEnabled.Value); } // TransformPlaceholders if (Element.TransformPlaceholders.HasValue) { imageLoader.TransformPlaceholders(Element.TransformPlaceholders.Value); } // Transformations if (Element.Transformations != null && Element.Transformations.Count > 0) { imageLoader.Transform(Element.Transformations); } imageLoader.WithPriority(Element.LoadingPriority); if (Element.CacheType.HasValue) { imageLoader.WithCache(Element.CacheType.Value); } if (Element.LoadingDelay.HasValue) { imageLoader.Delay(Element.LoadingDelay.Value); } var element = Element; imageLoader.Finish((work) => { element.OnFinish(new CachedImageEvents.FinishEventArgs(work)); ImageLoadingFinished(element); }); imageLoader.Success((imageInformation, loadingResult) => { element.OnSuccess(new CachedImageEvents.SuccessEventArgs(imageInformation, loadingResult)); _lastImageSource = ffSource; }); imageLoader.Error((exception) => element.OnError(new CachedImageEvents.ErrorEventArgs(exception))); imageLoader.DownloadStarted((downloadInformation) => element.OnDownloadStarted(new CachedImageEvents.DownloadStartedEventArgs(downloadInformation))); imageLoader.DownloadProgress((progress) => element.OnDownloadProgress(new CachedImageEvents.DownloadProgressEventArgs(progress))); imageLoader.FileWriteFinished((fileWriteInfo) => element.OnFileWriteFinished(new CachedImageEvents.FileWriteFinishedEventArgs(fileWriteInfo))); _currentTask = imageLoader.Into(Control); } }
private void SetImage(CachedImage oldElement = null) { Xamarin.Forms.ImageSource source = Element.Source; if (oldElement != null) { Xamarin.Forms.ImageSource source2 = oldElement.Source; if (object.Equals(source2, source)) { return; } if (source2 is FileImageSource && source is FileImageSource && ((FileImageSource)source2).File == ((FileImageSource)source).File) { return; } } ((IElementController)Element).SetValueFromRenderer(CachedImage.IsLoadingPropertyKey, true); Cancel(); TaskParameter imageLoader = null; var ffSource = ImageSourceBinding.GetImageSourceBinding(source); if (ffSource == null) { if (Control != null) { Control.Image = null; } ImageLoadingFinished(Element); } else if (ffSource.ImageSource == FFImageLoading.Work.ImageSource.Url) { imageLoader = ImageService.Instance.LoadUrl(ffSource.Path, Element.CacheDuration); } else if (ffSource.ImageSource == FFImageLoading.Work.ImageSource.CompiledResource) { imageLoader = ImageService.Instance.LoadCompiledResource(ffSource.Path); } else if (ffSource.ImageSource == FFImageLoading.Work.ImageSource.ApplicationBundle) { imageLoader = ImageService.Instance.LoadFileFromApplicationBundle(ffSource.Path); } else if (ffSource.ImageSource == FFImageLoading.Work.ImageSource.Filepath) { imageLoader = ImageService.Instance.LoadFile(ffSource.Path); } else if (ffSource.ImageSource == FFImageLoading.Work.ImageSource.Stream) { imageLoader = ImageService.Instance.LoadStream(ffSource.Stream); } if (imageLoader != null) { // CustomKeyFactory if (Element.CacheKeyFactory != null) { var bindingContext = Element.BindingContext; imageLoader.CacheKey(Element.CacheKeyFactory.GetKey(source, bindingContext)); } // LoadingPlaceholder if (Element.LoadingPlaceholder != null) { var placeholderSource = ImageSourceBinding.GetImageSourceBinding(Element.LoadingPlaceholder); if (placeholderSource != null) { imageLoader.LoadingPlaceholder(placeholderSource.Path, placeholderSource.ImageSource); } } // ErrorPlaceholder if (Element.ErrorPlaceholder != null) { var placeholderSource = ImageSourceBinding.GetImageSourceBinding(Element.ErrorPlaceholder); if (placeholderSource != null) { imageLoader.ErrorPlaceholder(placeholderSource.Path, placeholderSource.ImageSource); } } // Downsample if (Element.DownsampleToViewSize && (Element.Width > 0 || Element.Height > 0)) { if (Element.Height > Element.Width) { imageLoader.DownSample(height: Element.Height.PointsToPixels()); } else { imageLoader.DownSample(width: Element.Width.PointsToPixels()); } } else if (Element.DownsampleToViewSize && (Element.WidthRequest > 0 || Element.HeightRequest > 0)) { if (Element.HeightRequest > Element.WidthRequest) { imageLoader.DownSample(height: Element.HeightRequest.PointsToPixels()); } else { imageLoader.DownSample(width: Element.WidthRequest.PointsToPixels()); } } else if ((int)Element.DownsampleHeight != 0 || (int)Element.DownsampleWidth != 0) { if (Element.DownsampleHeight > Element.DownsampleWidth) { imageLoader.DownSample(height: Element.DownsampleUseDipUnits ? Element.DownsampleHeight.PointsToPixels() : (int)Element.DownsampleHeight); } else { imageLoader.DownSample(width: Element.DownsampleUseDipUnits ? Element.DownsampleWidth.PointsToPixels() : (int)Element.DownsampleWidth); } } // RetryCount if (Element.RetryCount > 0) { imageLoader.Retry(Element.RetryCount, Element.RetryDelay); } // TransparencyChannel if (Element.TransparencyEnabled.HasValue) { imageLoader.TransparencyChannel(Element.TransparencyEnabled.Value); } // FadeAnimation if (Element.FadeAnimationEnabled.HasValue) { imageLoader.FadeAnimation(Element.FadeAnimationEnabled.Value); } // TransformPlaceholders if (Element.TransformPlaceholders.HasValue) { imageLoader.TransformPlaceholders(Element.TransformPlaceholders.Value); } // Transformations if (Element.Transformations != null && Element.Transformations.Count > 0) { imageLoader.Transform(Element.Transformations); } imageLoader.WithPriority(Element.LoadingPriority); if (Element.CacheType.HasValue) { imageLoader.WithCache(Element.CacheType.Value); } var element = Element; imageLoader.Finish((work) => { element.OnFinish(new CachedImageEvents.FinishEventArgs(work)); ImageLoadingFinished(element); }); imageLoader.Success((imageInformation, loadingResult) => element.OnSuccess(new CachedImageEvents.SuccessEventArgs(imageInformation, loadingResult))); imageLoader.Error((exception) => element.OnError(new CachedImageEvents.ErrorEventArgs(exception))); _currentTask = imageLoader.Into(Control); } }