int UpdateData(int count)
{
TKDataSourceGroup group = (TKDataSourceGroup)this.dataSource.Items [0];
long startIndex = this.data.Count;
int i = 0;
for (; i < count; i++)
{
if (i + startIndex >= group.Items.Length)
{
return(i);
}
Random r = new Random();
int points = r.Next(0, 101);
this.data.Insert(0, string.Format("{0}: {1} points", group.Items [i + startIndex], points));
}
return(i);
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
this.dataSource.LoadDataFromJSONResource("ListViewSampleData", "json", "teams");
this.dataSource.GroupItemSourceKey = "items";
this.dataSource.GroupWithKey("key");
TKListView listView = new TKListView(this.View.Bounds);
listView.AutoresizingMask = UIViewAutoresizing.FlexibleWidth | UIViewAutoresizing.FlexibleHeight;
listView.WeakDataSource = dataSource;
listView.SelectionBehavior = TKListViewSelectionBehavior.Press;
this.View.AddSubview(listView);
TKListViewColumnsLayout layout = (TKListViewColumnsLayout)listView.Layout;
layout.CellAlignment = TKListViewCellAlignment.Stretch;
layout.ItemSize = new CGSize(300, 44);
layout.MinimumLineSpacing = 0;
layout.HeaderReferenceSize = new CGSize(100, 44);
layout.FooterReferenceSize = new CGSize(100, 44);
this.dataSource.Settings.ListView.InitCell(delegate(TKListView list, NSIndexPath indexPath, TKListViewCell cell, NSObject item) {
TKDataSourceGroup group = this.dataSource.Items[indexPath.Section] as TKDataSourceGroup;
cell.TextLabel.Text = group.Items[indexPath.Row] as NSString;
});
this.dataSource.Settings.ListView.InitHeader(delegate(TKListView list, NSIndexPath indexPath, TKListViewHeaderCell headerCell, TKDataSourceGroup group) {
headerCell.TextLabel.Text = String.Format("{0}", group.Key);
headerCell.TextLabel.TextAlignment = UITextAlignment.Center;
});
this.dataSource.Settings.ListView.InitFooter(delegate(TKListView list, NSIndexPath indexPath, TKListViewFooterCell footerCell, TKDataSourceGroup group) {
footerCell.TextLabel.Text = String.Format("Members count: {0}", group.Items.Length);
footerCell.TextLabel.TextAlignment = UITextAlignment.Left;
footerCell.TextLabel.Frame = new CGRect(5, 10, 200, 22);
});
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
dataSource = new TKDataSource(ArrayWithObjects(new object [] { 10, 5, 12, 7, 44 }), null);
// filter all values less or equal to 3
dataSource.Filter((NSObject item) => {
return(((NSNumber)item).NIntValue > 5);
});
// sort ascending
dataSource.Sort((NSObject obj1, NSObject obj2) => {
nint a = ((NSNumber)obj1).NIntValue;
nint b = ((NSNumber)obj2).NIntValue;
if (a < b)
{
return(NSComparisonResult.Descending);
}
else if (a > b)
{
return(NSComparisonResult.Ascending);
}
return(NSComparisonResult.Same);
});
// group odd/even values
dataSource.Group((NSObject item) => {
return(NSObject.FromObject(((NSNumber)item).NIntValue % 2 == 0));
});
// multiply every value * 10
dataSource.Map((NSObject item) => {
return(NSObject.FromObject(((NSNumber)item).NIntValue * 10));
});
// find the max value
NSObject maxValue = dataSource.Reduce(NSObject.FromObject(0), (NSObject item, NSObject value) => {
if (((NSNumber)item).NIntValue > ((NSNumber)value).NIntValue)
{
return(item);
}
return(value);
});
Console.WriteLine("the max value is: {0}", ((NSNumber)maxValue).NIntValue);
// output everything to the console
dataSource.Enumerate((NSObject item) => {
if (item.IsKindOfClass(new ObjCRuntime.Class(typeof(TKDataSourceGroup))))
{
TKDataSourceGroup group = (TKDataSourceGroup)item;
Console.WriteLine("group: {0}", group.Key);
}
else
{
Console.WriteLine("{0}", ((NSNumber)item).NIntValue);
}
});
// bind with a table view
var tableView = new UITableView(this.View.Bounds);
tableView.DataSource = dataSource;
this.View.AddSubview(tableView);
}