internal static async Task <AnimatedVisualFactory?> LoadAsync(
ImageAssetHandler?imageLoader,
Uri uri,
LottieVisualOptions options)
{
if (uri is null)
{
return(null);
}
var absoluteUri = Uris.GetAbsoluteUri(uri);
if (absoluteUri.Scheme.StartsWith("ms-"))
{
// The URI is an application URI. Defer to the StorageFileLoader.
return(await StorageFileLoader.LoadAsync(imageLoader, absoluteUri, options));
}
else
{
var loader = new UriLoader(imageLoader);
return(await Loader.LoadAsync(
() => GetJsonStreamAsync(uri),
loader,
options));
}
}
static async Task <(string?, Stream?)> GetJsonStreamAsync(Uri uri)
{
var absoluteUri = Uris.GetAbsoluteUri(uri);
if (absoluteUri != null)
{
var winrtClient = new Windows.Web.Http.HttpClient();
var response = await winrtClient.GetAsync(absoluteUri);
var result = await response.Content.ReadAsInputStreamAsync();
return(absoluteUri.LocalPath, result.AsStreamForRead());
}
return(null, null);
}
private protected override async Task <(string, Stream)> GetJsonStreamAsync()
{
var absoluteUri = Uris.GetAbsoluteUri(_uri);
if (absoluteUri != null)
{
if (absoluteUri.Scheme.StartsWith("ms-"))
{
return(await GetStorageFileStreamAsync(await StorageFile.GetFileFromApplicationUriAsync(absoluteUri)));
}
else
{
var winrtClient = new Windows.Web.Http.HttpClient();
var response = await winrtClient.GetAsync(absoluteUri);
var result = await response.Content.ReadAsInputStreamAsync();
return(absoluteUri.LocalPath, result.AsStreamForRead());
}
}
return(null, null);
}