public void UpdateCell(Tweet tweet)
{
UserName.Text = tweet.FromUserName;
TweetText.Text = tweet.Text;
UserAvatar.Image = tweet.UserAvatar ?? Tweet.Placeholder;
Time.Text = tweet.TimeDiff;
}
public void DownloadImage(Tweet tweetWithNoAvatar)
{
Task.Factory.StartNew(() => {
UIImage image = null;
NSUrl nsUrl = new NSUrl(tweetWithNoAvatar.ProfileImageUrl);
NSData data = NSData.FromUrl(nsUrl);
if (data != null)
{
image = new UIImage(data);
}
if (image != null)
{
tweetWithNoAvatar.UserAvatar = image;
RaiseDownloadAvatarEvent(tweetWithNoAvatar);
}
});
}
protected virtual void RaiseDownloadAvatarEvent(Tweet updatedTweet)
{
if (OnDownloadAvatar != null)
{
OnDownloadAvatar(updatedTweet);
}
}
public void DownloadAvatar(Tweet tweet)
{
_tweetData.DownloadImage(tweet);
}
private void ShowDetailedTweet(Tweet tweetToDetail)
{
if (_tweetDetail == null)
{
_tweetDetail = new TweetDetailViewController(tweetToDetail);
}
else
{
_tweetDetail.SetDetailedTweet(tweetToDetail);
}
_showingDetailedTweet = true;
NavigationController.PushViewController(_tweetDetail, true);
}
private void HandleOnDownloadAvatar(Tweet updatedTweet)
{
InvokeOnMainThread(() => {
if (_showingDetailedTweet)
{
_tweetDetail.UpdateAvatar();
}
else
{
_tableSource.UpdateTweet(updatedTweet);
}
});
}
protected void RaiseTweetRowSelected(Tweet tweet)
{
if (OnTweetRowSelected != null && tweet != null)
{
OnTweetRowSelected(tweet);
}
}
public void UpdateTweet(Tweet tweetWithAvatar)
{
int index = _data.IndexOf(tweetWithAvatar);
if (index < 0)
{
return;
}
TweetTableCell cell = _table.VisibleCells.FirstOrDefault(c => c.Tag == index) as TweetTableCell;
if (cell != null)
{
cell.SetAvatar(tweetWithAvatar.GetMaskedAvatar());
}
}
public override void ViewWillDisappear(bool animated)
{
_detailedTweet = null;
base.ViewWillDisappear(animated);
}
public void SetDetailedTweet(Tweet newDetailedTweet)
{
_detailedTweet = newDetailedTweet;
}
public TweetDetailViewController(Tweet tweetToDetail)
: base("TweetScreen", null)
{
_detailedTweet = tweetToDetail;
HidesBottomBarWhenPushed = true;
}