/// <summary>
/// 非线程安全的
/// </summary>
/// <returns></returns>
public static ImageCache CreateInstance()
{
if (_instance == null)
{
lock (lockHelper)
{
if (_instance == null)
{
_instance = new ImageCache();
}
}
}
return(_instance);
}
private async void ShareWindow_WeChatShareClick(object sender, RoutedEventArgs e)
{
var cache = ImageCache.CreateInstance();
var uri = await cache.GetImageSourceFromUrlAsync(story.Images[0]);
var file = await StorageFile.GetFileFromApplicationUriAsync(uri);
using (var stream = await file.OpenReadAsync())
{
var pic = new byte[stream.Size];
await stream.AsStream().ReadAsync(pic, 0, pic.Length);
WeChatClient client = new WeChatClient();
client.ShareLink(shareUrl, title, $"{title}（分享自 @知乎日报 App）", pic);
}
}