コード例 #1
0
        public Task <MediaFile> SaveThumbnailAsync(string path)
        {
            if (path == null)
            {
                throw new ArgumentNullException("path");
            }

            string lookupColumn = (IsAggregate)
                                                                        ? ContactsContract.ContactsColumns.LookupKey
                                                                        : ContactsContract.RawContactsColumns.ContactId;

            AsyncQuery <byte[]> query = new AsyncQuery <byte[]> (this.content, c => c.GetBlob(c.GetColumnIndex(ContactsContract.CommonDataKinds.Photo.PhotoColumnId)));

            query.StartQuery(0, null, ContactsContract.Data.ContentUri, new[] { ContactsContract.CommonDataKinds.Photo.PhotoColumnId, ContactsContract.DataColumns.Mimetype },
                             lookupColumn + "=? AND " + ContactsContract.DataColumns.Mimetype + "=?", new[] { Id, ContactsContract.CommonDataKinds.Photo.ContentItemType }, null);

            return(query.Task.ContinueWith(t =>
            {
                if (t.Result == null)
                {
                    return null;
                }

                File.WriteAllBytes(path, t.Result);
                return new MediaFile(path, deletePathOnDispose: false);
            }, TaskScheduler.Default));
        }
コード例 #2
0
ファイル: Contact.cs プロジェクト: nberardi/Xamarin.Mobile
		public Task<MediaFile> SaveThumbnailAsync (string path)
		{
			if (path == null)
				throw new ArgumentNullException ("path");

			string lookupColumn = (IsAggregate)
									? ContactsContract.ContactsColumns.LookupKey
									: ContactsContract.RawContactsColumns.ContactId;

			AsyncQuery<byte[]> query = new AsyncQuery<byte[]> (this.content, c => c.GetBlob (c.GetColumnIndex (ContactsContract.CommonDataKinds.Photo.PhotoColumnId)));
			query.StartQuery (0, null, ContactsContract.Data.ContentUri, new[] { ContactsContract.CommonDataKinds.Photo.PhotoColumnId, ContactsContract.DataColumns.Mimetype },
					lookupColumn + "=? AND " + ContactsContract.DataColumns.Mimetype + "=?", new[] { Id, ContactsContract.CommonDataKinds.Photo.ContentItemType }, null);

			return query.Task.ContinueWith (t =>
			{
				if (t.Result == null)
					return null;

				File.WriteAllBytes (path, t.Result);
				return new MediaFile (path, deletePathOnDispose: false);
			}, TaskScheduler.Default);
		}