async void btnAuthenticate_Click(object sender, EventArgs e)
{
Button btnSender = sender as Button;
if (btnSender.Text == "Sign In")
{
btnSender.Enabled = false;
await Office365Service.EnsureClientCreated(this);
myContacts = await Office365Service.GetMyContacts();
myContactsAdapter.AddAll(myContacts);
myContactsAdapter.NotifyDataSetChanged();
btnSender.Text = "Sign Out";
btnSender.Enabled = true;;
}
else
{
myContacts.Clear();
myContactsAdapter.Clear();
myContactsAdapter.NotifyDataSetChanged();
Office365Service.SignOut(this);
btnSender.Text = "Sign In";
}
}
public override View GetView(int position, View convertView, ViewGroup parent)
{
MyContact myContactItem = this.GetItem(position);
View row = convertView;
if (row == null)
{
row = LayoutInflater.FromContext(this.Context).Inflate(Resource.Layout.ContactListItem, parent, false);
}
var contactNameElement = row.FindViewById <TextView>(Resource.Id.ContactName);
contactNameElement.Text = myContactItem.Name;
var contactEmailElement = row.FindViewById <TextView>(Resource.Id.ContactEmail);
contactEmailElement.Text = myContactItem.Email;
Task.Run(async() =>
{
Bitmap bitmap = null;
var contactPictureElement = row.FindViewById <ImageView>(Resource.Id.ContactPicture);
byte[] bytesContactPicture = await Office365Service.GetContactPicture(myContactItem.Id);
if (bytesContactPicture.Length > 0)
{
bitmap = await BitmapFactory.DecodeByteArrayAsync(bytesContactPicture, 0, bytesContactPicture.Length);
SetBitmapSafe(bitmap, contactPictureElement);
}
else
{
var galUser = await Office365Service.GetUser(myContactItem.Email);
try
{
if (galUser != null)
{
using (var stream = (await galUser.ThumbnailPhoto.DownloadAsync()).Stream)
{
bitmap = await BitmapFactory.DecodeStreamAsync(stream);
SetBitmapSafe(bitmap, contactPictureElement);
}
}
}
catch (Exception)
{
}
}
});
return(row);
}