public override Task <IImageSourceServiceResult <Drawable>?> GetDrawableAsync(IImageSource imageSource, Context context, CancellationToken cancellationToken = default)
{
var fileImageSource = (IFileImageSource)imageSource;
if (!fileImageSource.IsEmpty)
{
try
{
var id = context?.GetDrawableId(fileImageSource.File) ?? -1;
if (id > 0)
{
var d = context?.GetDrawable(id);
if (d is not null)
{
return(Task.FromResult <IImageSourceServiceResult <Drawable>?>(new ImageSourceServiceResult(d)));
}
}
var drawableCallback = new ImageLoaderResultCallback();
PlatformInterop.LoadImageFromFile(context, fileImageSource.File, drawableCallback);
return(drawableCallback.Result);
}
catch (Exception ex)
{
Logger?.LogWarning(ex, "Unable to load image file '{File}'.", fileImageSource.File);
throw;
}
}
return(Task.FromResult <IImageSourceServiceResult <Drawable>?>(null));
}
public override Task <IImageSourceServiceResult?> LoadDrawableAsync(IImageSource imageSource, Android.Widget.ImageView imageView, CancellationToken cancellationToken = default)
{
var fileImageSource = (IFileImageSource)imageSource;
if (!fileImageSource.IsEmpty)
{
var callback = new ImageLoaderCallback();
try
{
var id = imageView.Context?.GetDrawableId(fileImageSource.File) ?? -1;
if (id > 0)
{
imageView.SetImageResource(id);
return(Task.FromResult <IImageSourceServiceResult?>(new ImageSourceServiceLoadResult()));
}
else
{
PlatformInterop.LoadImageFromFile(imageView, fileImageSource.File, callback);
}
return(callback.Result);
}
catch (Exception ex)
{
Logger?.LogWarning(ex, "Unable to load image file '{File}'.", fileImageSource.File);
throw;
}
}
return(Task.FromResult <IImageSourceServiceResult?>(null));
}