protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
SetContentView(Resource.Layout.activity_main);
System.Diagnostics.Debug.Assert(_disposables == null);
System.Diagnostics.Debug.Assert(ViewModel == null);
_disposables = new CompositeDisposable();
ViewModel = new ViewModel();
_delegateSpinnerView = FindViewById <Spinner>(Resource.Id.delegate_spinner_view);
this.OneWayBind(ViewModel, vm => vm.Data, v => v._delegateSpinnerView.Adapter, data => new SpinnerAdapter(this, data))
.AddTo(_disposables);
this.WhenAnyValue(v => v.ViewModel.SelectedIndex)
.Subscribe(idx => _delegateSpinnerView.SetSelection(idx, true))
.AddTo(_disposables);
Observable.FromEvent <EventHandler <AdapterView.ItemSelectedEventArgs>, AdapterView.ItemSelectedEventArgs>(
f => (s, e) => f(e),
h => _delegateSpinnerView.ItemSelected += h,
h => _delegateSpinnerView.ItemSelected -= h)
.Subscribe(e => ViewModel.SelectedIndex = e.Position)
.AddTo(_disposables);
_canvasView = FindViewById <UGCanvasView>(Resource.Id.canvas_view);
this.OneWayBind(ViewModel, vm => vm.Delegate, v => v._canvasView.Delegate)
.AddTo(_disposables);
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
var frame = View.Frame;
frame.Height -= delegatePopUpButton.VisibleRect().Height;
#if USE_LAYER
View.WantsLayer = true;
var layer = new UGCanvasCALayer();
layer.Frame = View.Frame;
View.Layer.AddSublayer(layer);
_layer = layer;
#else
var canvas = new UGCanvasView(frame)
{
AutoresizingMask = NSViewResizingMask.WidthSizable | NSViewResizingMask.HeightSizable,
};
View.AddSubview(canvas);
_canvas = canvas;
#endif
ViewModel = new ViewModel();
this.WhenAnyValue(v => v.ViewModel.Data)
.Subscribe(data =>
{
delegatePopUpButton.RemoveAllItems();
delegatePopUpButton.AddItems(data);
})
.AddTo(_disposables);
this.WhenAnyValue(v => v.ViewModel.SelectedIndex)
.Subscribe(idx => delegatePopUpButton.SelectItem(idx))
.AddTo(_disposables);
Observable.FromEvent <EventHandler, EventArgs>(
f => (s, e) => f(e),
h => delegatePopUpButton.Activated += h,
h => delegatePopUpButton.Activated -= h)
.Subscribe(_ => ViewModel.SelectedIndex = (int)delegatePopUpButton.IndexOfSelectedItem)
.AddTo(_disposables);
#if USE_LAYER
this.OneWayBind(ViewModel, vm => vm.Delegate, v => v._layer.CanvasDelegate)
.AddTo(_disposables);
#else
this.OneWayBind(ViewModel, vm => vm.Delegate, v => v._canvas.Delegate)
.AddTo(_disposables);
#endif
}
protected override void Dispose(bool disposing)
{
base.Dispose(disposing);
if (disposing)
{
#if USE_LAYER
if (_layer != null)
{
_layer.RemoveFromSuperLayer();
_layer.Dispose();
_layer = null;
}
#else
if (_canvas != null)
{
_canvas.Dispose();
_canvas = null;
}
#endif
}
}