C# UISwitch类代码示例

		public override void ViewDidLoad ()
		{
			base.ViewDidLoad ();
			// Perform any additional setup after loading the view, typically from a nib.

			List<string> DataSourceList = new List<string> () {"itme1", "itme2", "itme3",
				"itme4", "itme5", "itme6", "itme7","itme8", "itme9", "itme10", "itme11"
			};

			this.myTableView.Source = new CustomerDataSource (DataSourceList);

			List<string> titleList = new List<string> (){ "A-Z", "a-z", "0-9","I-VVI" };
			List<string> Alist = new List<string> (){ "A", "B", "C", "D", "E" };
			List<string> NumList = new List<string> (){ "0", "1", "2", "3", "4" };
			List<string> MIList = new List<string> (){ "I", "II", "III", "VI", "VII" };

			this.customerStyleTableView = new UITableView (new CoreGraphics.CGRect (300, 50, 200, 600), UITableViewStyle.Grouped);
			this.customerStyleTableView.Source = new CustomerGroupSource (titleList, Alist, NumList,MIList);

			this.View.AddSubview(this.customerStyleTableView);

			this.customerAccessory = new UITableView (new CoreGraphics.CGRect (600, 50, 400, 600), UITableViewStyle.Grouped);
			this.customerAccessory.Source = new CustomerGroupSource (titleList, Alist, NumList,MIList);
			this.View.AddSubview (this.customerAccessory);

			usw = new UISwitch (new CoreGraphics.CGRect (820, 50, 50, 20));

			usw.ValueChanged += CSw_ValueChange;
			this.View.AddSubview (usw);
		}

 public BooleanCellView()
     : base(UITableViewCellStyle.Default, "boolean_element")
 {
     Switch = new UISwitch();
     Switch.BackgroundColor = UIColor.Clear;
     SelectionStyle = UITableViewCellSelectionStyle.None;
 }

 public ProductViewControllerToggleTableViewCell(IntPtr handle)
     : base(handle)
 {
     SelectionStyle = UITableViewCellSelectionStyle.None;
     toggleSwitch = new UISwitch ();
     AccessoryView = toggleSwitch;
 }

        public override UITableViewCell GetCell(UITableView tv)
        {
            if (_switch == null)
            {
                _switch = new UISwitch
                {
                    BackgroundColor = UIColor.Clear,
                    Tag = 1,
                    On = Value
                };
                _switch.AddTarget(delegate
                {
                    Value = _switch.On;
                }, UIControlEvent.ValueChanged);
            }
            else
            {
                _switch.On = Value;
            }

            var cell = tv.DequeueReusableCell ("boolean_element");
            if (cell == null){
                cell = new UITableViewCell (UITableViewCellStyle.Default, "boolean_element");
                cell.SelectionStyle = UITableViewCellSelectionStyle.None;
            }

            cell.BackgroundColor = StringElement.BgColor;
            cell.TextLabel.Font = StringElement.DefaultTitleFont.WithSize(StringElement.DefaultTitleFont.PointSize);
            cell.TextLabel.TextColor = StringElement.DefaultTitleColor;
            cell.TextLabel.Text = Caption;
            cell.AccessoryView = _switch;
            return cell;
        }

		public void Include (UISwitch sw)
		{
			sw.On = !sw.On;
			sw.ValueChanged += (sender, args) => {
				sw.On = false;
			};
		}

		public override UITableViewCell GetCell (UITableView tv)
		{
			if (sw == null){
				sw = new UISwitch (){
					BackgroundColor = UIColor.Clear,
					Tag = 1,
					On = Value
				};
				sw.AddTarget (delegate {
					Value = sw.On;
				}, UIControlEvent.ValueChanged);
			} else
				sw.On = Value;
			
			var cell = tv.DequeueReusableCell (CellKey);
			if (cell == null){
				cell = new UITableViewCell (UITableViewCellStyle.Default, CellKey);
				cell.SelectionStyle = UITableViewCellSelectionStyle.None;
			} else
				RemoveTag (cell, 1);
		
			cell.TextLabel.Text = Caption;
			cell.AccessoryView = sw;

			return cell;
		}

		void toggleAutomaticWaiting (UISwitch sender)
		{
			// Check for the new value of the switch and update AVPlayer property and user defaults
			if(Player != null)
				Player.AutomaticallyWaitsToMinimizeStalling = AutomaticWaitingSwitch.On;
			NSUserDefaults.StandardUserDefaults.SetBool (AutomaticWaitingSwitch.On, "disableAutomaticWaiting");
		}

		public override void LoadView ()
		{
			base.LoadView ();
			
			var camera = CameraPosition.FromCamera (latitude: 30.2652898, 
			                                        longitude: -97.7386826, 
			                                        zoom: 17,
			                                        bearing: 15,
			                                        viewingAngle: 15);
			mapView = MapView.FromCamera (View.Bounds, camera);
			mapView.MapType = MapViewType.Normal;
			mapView.MyLocationEnabled = true;
			//mapView.Frame = View.Frame;

			var hiltonOptions = new MarkerOptions();

			hiltonOptions.Position = new MonoTouch.CoreLocation.CLLocationCoordinate2D(30.2652898, -97.7386826);
			hiltonOptions.Title = "Evolve 2013";
			hiltonOptions.Snippet = "Austin, TX";
			mapView.AddMarker(hiltonOptions);

			View.Add (mapView);

			satelliteSwitch = new UISwitch ();
			satelliteSwitch.Frame = new RectangleF(11.0f, 11.0f, satelliteSwitch.Frame.Width, satelliteSwitch.Frame.Height);
			satelliteSwitch.On = false;
			View.Add (satelliteSwitch);

			currentLocNow = UIButton.FromType (UIButtonType.RoundedRect);
			currentLocNow.Frame = new RectangleF(50, 100, 100, 20);
			currentLocNow.Center = new PointF (View.Frame.Width/2, View.Frame.Height - 20.0f);
			currentLocNow.SetTitle ("ShowMyLoc", UIControlState.Normal);
			View.AddSubview (currentLocNow);
		}

		public BoolFormatCell ()
		{
			swicth = new UISwitch ();
			swicth.ValueChanged += Swicth_ValueChanged;
			this.CanRenderUnLoad = false;
			this.AddSubview (swicth);
		}

        public override void ViewDidLoad()
        {
            View = new UIView(){ BackgroundColor = UIColor.White};
            base.ViewDidLoad();

            // ios7 layout
            if (RespondsToSelector(new Selector("edgesForExtendedLayout")))
                EdgesForExtendedLayout = UIRectEdge.None;

            var textFieldTitle = new UITextField(new RectangleF(10, 10, 300, 30));
            Add(textFieldTitle);
            var picker = new UIPickerView();
            var pickerViewModel = new MvxPickerViewModel(picker);
            picker.Model = pickerViewModel;
            picker.ShowSelectionIndicator = true; 
            textFieldTitle.InputView = picker;

            var textFieldFirstName = new UITextField(new RectangleF(10, 40, 300, 30));
            Add(textFieldFirstName);
            var textFieldLastName = new UITextField(new RectangleF(10, 70, 300, 30));
            Add(textFieldLastName);
            var acceptedLabel = new UILabel(new RectangleF(10, 100, 200, 30));
            acceptedLabel.Text = "Accepted?";
            Add(acceptedLabel);
            var accepted = new UISwitch(new RectangleF(210, 100, 100, 30));
            Add(accepted);
            var add = new UIButton(UIButtonType.RoundedRect);
            add.SetTitle("Add", UIControlState.Normal);
            add.TintColor = UIColor.Purple;
            add.Frame = new RectangleF(10,130,300,30);
            Add(add);

            var table = new UITableView(new RectangleF(10, 160, 300, 300));
            Add(table);
            var source = new MvxStandardTableViewSource(table, "TitleText FirstName");
            table.Source = source;

            var set = this.CreateBindingSet<FirstView, Core.ViewModels.FirstViewModel>();
            set.Bind(textFieldFirstName).To(vm => vm.FirstName);
            set.Bind(textFieldLastName).To(vm => vm.LastName);
            set.Bind(pickerViewModel).For(p => p.ItemsSource).To(vm => vm.Titles);
            set.Bind(pickerViewModel).For(p => p.SelectedItem).To(vm => vm.Title);
            set.Bind(textFieldTitle).To(vm => vm.Title);
            set.Bind(accepted).To(vm => vm.Accepted);
            set.Bind(add).To("Add");
            set.Bind(source).To(vm => vm.People);
            set.Apply();

            var tap = new UITapGestureRecognizer(() =>
                {
                    foreach (var view in View.Subviews)
                    {
                        var text = view as UITextField;
                        if (text != null)
                            text.ResignFirstResponder();
                    }
                });
            View.AddGestureRecognizer(tap);
        }

		partial void SubscriptionPreferenceUpdated (UISwitch sender)
		{
			if (sender.On) {
				CloudManager.Subscribe ();
			} else {
				CloudManager.Unsubscribe ();
			}
		}

            public SwitchCell()
                : base(UITableViewCellStyle.Default, MultipleItemSelectionWithSwitchesViewController.ReuseIdentifier)
            {
                _switch = new UISwitch();

                AccessoryView = _switch;

                SelectionStyle = UITableViewCellSelectionStyle.None;
            }

        public void AddSubCatItem(iProPQRSPortableLib.Type item)
        {
            AttribType SelectedItem=SelectedAllType.Find(u=>u.ProcAttribTypeID == item.ProcAttribTypeID );
            UIView uvblock=new UIView(new CoreGraphics.CGRect(0,Ycord,380,60));
            UISwitch usOption=new UISwitch(new CoreGraphics.CGRect(8,10,51,31));
            usOption.Tag = item.ProcAttribTypeID;
            if (SelectedItem != null) {
                usOption.On = true;
                SaveAttribTypeList.Add (SelectedItem);
                SubCattextvalue.Add(item.Label);
            }
            usOption.ValueChanged += (object sender, EventArgs e) => {
                AttribType additem=new AttribType();
                additem.IsHighLighted=false;
                additem.ProcAttribTypeID= item.ProcAttribTypeID;
                additem.ProcID=ProcID;
                additem.Value=item.Label;

                AttribType existingitem= SelectedAllType.Find(u=>u.ProcAttribTypeID == item.ProcAttribTypeID );
                if(usOption.On)
                {
                    if(existingitem == null)
                        SaveAttribTypeList.Add (additem);

                    SubCattextvalue.Add(item.Label);
                }
                else
                {
                    SubCattextvalue.Remove(item.Label);
                    if(existingitem != null)
                    {
                        existingitem.Value="";
                        SaveAttribTypeList.Remove (existingitem);
                        SaveAttribTypeList.Add (existingitem);
                    }

                }
            };
            UILabel lbldesc=new UILabel(new CoreGraphics.CGRect(78,10,300,50));
            lbldesc.Lines = 2;
            lbldesc.Text = item.Label;
            uslist.Add (usOption);

            UIView uvbreackline=new UIView(new CoreGraphics.CGRect(0,60,380,1));
            uvbreackline.BackgroundColor = UIColor.Gray;

            uvblock.Add (usOption);
            uvblock.Add (lbldesc);
            uvblock.Add (uvbreackline);

            usSubCatView.Add (uvblock);

            Ycord = Ycord + 61;

            usSubCatView.SizeToFit ();
            usSubCatView.ContentSize = new SizeF (float.Parse (usSubCatView.Frame.Width.ToString ()), float.Parse (usSubCatView.Frame.Height.ToString ()) + (float)Ycord-100 );
        }

 public LabelSwitchView ()
 {
     Add (label = new UILabel () {
         TranslatesAutoresizingMaskIntoConstraints = false,
     });
     Add (toggle = new UISwitch () {
         TranslatesAutoresizingMaskIntoConstraints = false,
     });
 }

		public override void ViewDidLoad ()
		{	
			base.ViewDidLoad ();
			
			#region UI Controls (you could do this in XIB if you want)
			saveButton = UIButton.FromType(UIButtonType.RoundedRect);
			saveButton.Frame = new RectangleF(10,10,145,50);
			saveButton.SetTitle("Save", UIControlState.Normal);
			saveButton.SetTitle("waiting...", UIControlState.Disabled);
			saveButton.Enabled = false;
			
			doneSwitch = new UISwitch();
			doneSwitch.Frame = new RectangleF(180, 25, 145, 50);
			doneSwitch.Enabled = false;
			doneLabel = new UILabel();
			doneLabel.Frame = new RectangleF(200, 10, 145, 15);
			doneLabel.Text = "Done?";

			titleText = new UITextView(new RectangleF(10, 70, 300, 40));
			titleText.BackgroundColor = UIColor.FromRGB(240,240,240);
			titleText.Editable = true;
			titleText.BackgroundColor = UIColor.FromRGB(240,240,240);

			descriptionText = new UITextView(new RectangleF(10, 130, 300, 180));
			descriptionText.BackgroundColor = UIColor.FromRGB(240,240,240);
			descriptionText.Editable = true;
			descriptionText.ScrollEnabled = true;
			descriptionText.AutoresizingMask = UIViewAutoresizing.FlexibleHeight;

			// Add the controls to the view
			this.Add(saveButton);
			this.Add(doneLabel);
			this.Add(doneSwitch);
			this.Add(descriptionText);
			this.Add(titleText);
			#endregion

			saveButton.TouchUpInside += (sender, e) => {

				doc.TheTask.Title = titleText.Text;
				doc.TheTask.Description = descriptionText.Text;
				doc.TheTask.IsDone = doneSwitch.On;

				doc.UpdateChangeCount (UIDocumentChangeKind.Done);	// tell UIDocument it needs saving
				descriptionText.ResignFirstResponder ();			// hide keyboard
				titleText.ResignFirstResponder ();
			};
			
			LoadData ();

			NSNotificationCenter.DefaultCenter.AddObserver (this
				, new Selector("dataReloaded:")
				, new NSString("taskModified"),
				null);

		}