private async Task LoadPhoto([NotNull] StudentEntity student)
{
var path = await _photoService.DownloadPhoto(StudentEntity.CardUidToId(student.CardUid));
var image = _photoService.GetImage(path);
RunInUiThread(() => this.StudentPhoto = image);
}
private async Task <BitmapImage> LoadStudentPhoto(StudentEntity entity)
{
if (entity == null)
{
return(null);
}
try {
var photoPath = await this.PhotoService.DownloadPhoto(StudentEntity.CardUidToId(entity.CardUid));
return(photoPath == null ? null : this.PhotoService.GetImage(photoPath));
}
catch (Exception e) {
Debug.WriteLine(e);
throw;
}
}
private void UpdatePhoto(StudentEntity entity)
{
if (entity == null)
{
return;
}
this.StudentPhoto = null;
Task.Run(async() => {
var photoPath = await this.PhotoService.DownloadPhoto(StudentEntity.CardUidToId(entity.CardUid));
if (photoPath == null)
{
return;
}
var image = this.PhotoService.GetImage(photoPath);
RunInUiThread(() => this.StudentPhoto = image);
}
);
}
private async void ButtonBase_OnClick(object sender, RoutedEventArgs e)
{
if (Popup.IsOpen)
{
Popup.IsOpen = false;
return;
}
if (!(this.DataContext is StudentLessonViewModel view))
{
return;
}
var service = view.ServiceLocator.Locate <PhotoService>();
var path = await service.DownloadPhoto(StudentEntity.CardUidToId(view.Model.CardUid));
if (string.IsNullOrWhiteSpace(path))
{
return;
}
Image.Source = service.GetImage(path);
Popup.IsOpen = true;
}
private Task <string[]> LoadImages(IEnumerable <StudentEntity> students)
{
return(Task.WhenAll(students.Select(entity =>
this.PhotoService.DownloadPhoto(StudentEntity.CardUidToId(entity.CardUid)))));
}
