Beispiel #1
0
        public override TreeView.NodeViewHolder OnCreateViewHolder(ViewGroup parent, TreeView tree, View itemView, int viewType)
        {
            TreeViewAdapter adapter = new TreeViewAdapter();

            tree.SetAdapter(adapter);
            return(new NodeViewHolder(tree, itemView));
        }
Beispiel #2
0
        protected override void OnCreate(Bundle savedInstanceState)
        {
            base.OnCreate(savedInstanceState);
            SetContentView(Resource.Layout.activity_main);

            TreeView        treeView = FindViewById <TreeView>(Resource.Id.treeView);
            TreeViewAdapter adapter  = new TreeViewAdapter();

            treeView.SetAdapter(adapter);
            TreeViewNode[] items =
            {
                new TreeViewNode(true),
                new TreeViewNode(true),
                new TreeViewNode(true),
                new TreeViewNode(true),
            };
            items[1].AddChild(new TreeViewNode(true));
            items[1].AddChild(new TreeViewNode(true));
            items[1][1].AddChild(new TreeViewNode(true));
            items[1].AddChild(new TreeViewNode(true));
            TreeViewNode item = new TreeViewNode(true);

            item.AddChild(new TreeViewNode(true));
            items[2].AddChild(item);
            adapter.AddNodes(items);

            adapter.Click += (object sender, TreeView.ClickEventArgs e) =>
            {
                System.Console.WriteLine($"Click. NodeId:{e.Node.Id}, Level:{e.Level}, Position:{e.Position}, NodeType{e.NodeType}");
            };
            adapter.LongClick += (object sender, TreeView.ClickEventArgs e) =>
            {
                System.Console.WriteLine($"LongClick. NodeId:{e.Node.Id}, Level:{e.Level}, Position:{e.Position}, NodeType{e.NodeType}");
                e.Node.AddChild(new TreeViewNode(false));
                adapter.NotifyDataSetChanged();
            };
        }