protected virtual async void updateAvatarSource()
{
if (Avatar == "")
{
return;
}
var localFolder = ApplicationData.Current.LocalFolder;
string filename = Avatar.Substring(Avatar.LastIndexOfAny(new char[2] {
'/', '\\'
}) + 1);
// If the file is not exist, create one.
StorageFile avatarFile;
try {
avatarFile = await localFolder.GetFileAsync(filename);
} catch (FileNotFoundException e) {
Debug.WriteLine(e.Message);
avatarFile = await localFolder.CreateFileAsync(filename);
} catch (Exception e) {
Debug.WriteLine(e.Message);
return;
}
// Download file from web
IBuffer downloadedBuffer = await HTTP.GetAvatar(Avatar);
try {
// Store downloaded content into file
Stream writeStream = await avatarFile.OpenStreamForWriteAsync();
await writeStream.AsOutputStream().WriteAsync(downloadedBuffer);
await writeStream.AsOutputStream().FlushAsync();
writeStream.AsOutputStream().Dispose();
// Read content and add it to source
BitmapImage source = new BitmapImage();
IRandomAccessStream ras = await avatarFile.OpenReadAsync();
await source.SetSourceAsync(ras);
AvatarSource = source;
} catch (Exception e) {
Debug.WriteLine(e.Message);
}
}