private async Task <Tuple <string, BitmapImage> > GetTupleAsync(int index, int offset)
{
int startIndex = index;
if (pictures.Count == 0)
{
return(null);
}
index = (index + offset + pictures.Count) % pictures.Count;
try
{
string path = pictures[index].FullName;
BitmapImage bmp = await EditImage.LoadBitmapAsync(path);
return(new Tuple <string, BitmapImage>(path, bmp));
}
catch { }
return(null);
}
public async Task <BitmapImage> TryGetImageAsync(string path)
{
if (path == CurrentPath)
{
return(Current);
}
if (path == PreviousPath)
{
return(Previous);
}
if (path == NextPath)
{
return(Next);
}
try
{
return(await EditImage.LoadBitmapAsync(path));
}
catch { }
return(null);
}