public override void ViewDidLoad()
{
this.View.BackgroundColor = UIColor.White;
CGRect tmp = this.View.Bounds;
tmp.Y = 20;
tmp.Height = tmp.Height - 20;
//Origin data in tableview
dataList = new List <string> ()
{
"January", "February", "March", "April"
};
//datalist : tableview's datalist
//Refresh : It's an action which will fire when drag down tableview event actived
//Refresh : It's an action which will fire when pull up tableview event actived
DragRefreshTableSource source = new DragRefreshTableSource(dataList, Refresh, MoreData);
source.ActiveDistance = 60; //Set an active distance
ALDragRefreshTableView tableView = new ALDragRefreshTableView(source);
tableView.Frame = tmp;
tableView.RowHeight = 50;
this.Add(tableView);
}
private void SetSource(DragRefreshTableSource theSource)
{
theSource.ThisTableView = this;
this.Source = theSource;
theSource.Scrolling += (locationY) => {
//Console.WriteLine ("locationY=" + locationY);
nfloat footerViewActionDis = this.Frame.Height >= this.ContentSize.Height ? locationY : locationY - (this.ContentSize.Height - this.Frame.Height);
if (footerViewActionDis > 0)
{
if (footerViewActionDis > theSource.ActiveDistance)
{
if (footerView.Status == HeaderAndFooterStatus.Display && theSource.IsDragging)
{
footerView.Status = HeaderAndFooterStatus.Actived;
}
}
else
{
if (footerView.Status == HeaderAndFooterStatus.Actived)
{
footerView.Status = HeaderAndFooterStatus.Display;
}
}
}
if (locationY < 0)
{
if (locationY < -theSource.ActiveDistance)
{
if (headerView.Status == HeaderAndFooterStatus.Display && theSource.IsDragging)
{
headerView.Status = HeaderAndFooterStatus.Actived;
}
}
else
{
if (headerView.Status == HeaderAndFooterStatus.Actived)
{
headerView.Status = HeaderAndFooterStatus.Display;
}
}
}
};
theSource.Loading += (isloading, isHeaderLoding) => {
if (isloading)
{
this.UserInteractionEnabled = false;
if (isHeaderLoding)
{
headerView.Status = HeaderAndFooterStatus.Loading;
}
else
{
footerView.Status = HeaderAndFooterStatus.Loading;
}
}
else
{
this.UserInteractionEnabled = true;
if (isHeaderLoding)
{
headerView.DefaultText = "last refresh " + DateTime.Now.ToString();
headerView.Status = HeaderAndFooterStatus.Display;
}
else
{
footerView.Status = HeaderAndFooterStatus.Display;
}
}
};
}
public ALDragRefreshTableView(DragRefreshTableSource theSource)
{
this.BackgroundColor = UIColor.Clear;
SetSource(theSource);
}