private void UpdateLatestPhotos()
{
Cursor c = Media.Query(this.mContext.ContentResolver, Media.ExternalContentUri, new string[] { "_id", "datetaken", "_size" }, (string)null, (string[])null, "date_added DESC");
if (c != null)
{
try
{
int count = 0;
this.mRecentlyUpdatedPhotos = new System.Collections.Generic.List <PhotoContent>();
while (c.MoveToNext())
{
MediaStoreCompat.PhotoContent item = new MediaStoreCompat.PhotoContent
{
id = c.GetLong(0),
taken = c.GetLong(1),
size = c.GetInt(2)
};
this.mRecentlyUpdatedPhotos.Add(item);
++count;
if (count > 5)
{
break;
}
}
}
finally
{
c.Close();
}
}
}
private Uri FindPhotoFromRecentlyTaken(File file)
{
if (this.mRecentlyUpdatedPhotos == null)
{
this.UpdateLatestPhotos();
}
long fileSize = file.Length();
long taken = ExifInterfaceCompat.GetExifDateTimeInMillis(file.AbsolutePath);
int maxPoint = 0;
MediaStoreCompat.PhotoContent maxItem = null;
foreach (var item in this.mRecentlyUpdatedPhotos)
{
int point = 0;
if ((long)item.size == fileSize)
{
++point;
}
if (item.taken == taken)
{
++point;
}
if (point > maxPoint)
{
maxPoint = point;
maxItem = item;
}
}
if (maxItem != null)
{
this.GenerateThumbnails(maxItem.id);
return(ContentUris.WithAppendedId(Media.ExternalContentUri, maxItem.id));
}
else
{
return(null);
}
}