C# UIView.SizeToFit方法代码示例

        public override void ViewDidLoad()
        {
            base.ViewDidLoad ();

            _view = new UIView();
            _view.BackgroundColor = UIColor.GroupTableViewBackgroundColor;

            UILabel label = new UILabel();
            label.Text = _stopInfo.StopName;
            label.BackgroundColor = UIColor.GroupTableViewBackgroundColor;
            label.SizeToFit();
            label.Frame = new RectangleF(10,0, 300, 40);

            _view.Add(label);

            UIButton button = UIButton.FromType(UIButtonType.RoundedRect);
            button.SetTitle("Legg til i favoritter", UIControlState.Normal);;

            button.Frame = new RectangleF(10, 120, 150, 50);

            _view.Add(button);

            _view.SizeToFit();

            button.TouchUpInside += delegate {
                _busStopRepository.AddFavorite(_stopInfo);
            };

            webView = new UIWebView { ScalesPageToFit = false };

            webView.LoadHtmlString (FormatText (), new NSUrl ());

            // Set the web view to fit the width of the app.
            webView.SizeToFit ();

            // Reposition and resize the receiver
            _view.Frame = new RectangleF (0, 0, this.View.Bounds.Width, this.View.Bounds.Height);

            // Add the table view as a subview
            this.View.AddSubview (_view);
        }

		public TripInfoView ()
		{

			TripHeaderView = new TripInfoHeaderView ();
			ExpensesViewList = new ExpensesView ();

			this.BackgroundColor = UIColor.DarkGray;

			AddNewExpenseButton = UIButton.FromType (UIButtonType.ContactAdd);
			expensesLabel = new UILabel () {
				Font = UIFont.FromName("AvenirNext-Bold", 17f),
				TextAlignment = UITextAlignment.Left,
				BackgroundColor = UIColor.Clear,
				TextColor = UIColor.White,
				Text = "expenses"

			};

			total = new UILabel () {
				Font = UIFont.FromName("AvenirNext-Bold", 14f),
				TextAlignment = UITextAlignment.Left,
				BackgroundColor = UIColor.Clear,
				TextColor = UIColor.White,
				Text = "total: $260"

			};




			TripHeaderView.SizeToFit();
			ExpensesViewList.SizeToFit();
			expensesLabel.SizeToFit ();
			total.SizeToFit();

			AddSubviews (TripHeaderView, expensesLabel, AddNewExpenseButton, ExpensesViewList, total);
		}

		public EditExpenseView ()
		{
			this.BackgroundColor = UIColor.DarkGray;

			TripHeaderView = new TripInfoHeaderView ();

			addExpenseLabel = new UILabel () {
				Font = UIFont.FromName("AvenirNext-Bold", 17f),
				TextAlignment = UITextAlignment.Left,
				BackgroundColor = UIColor.Clear,
				TextColor = UIColor.White,
				Text = "add new expense"

			};

			expenseName = new UITextField () { 
				Placeholder = "expense name?",
				BorderStyle = UITextBorderStyle.None,
				Font = UIFont.FromName("AvenirNext-Medium", 16f),
				TextColor = UIColor.Black,
				BackgroundColor = UIColor.White
			};

			date = new ActionSheetDatePicker (this);
			date.Title = "Choose Date:";
			date.DatePicker.Mode = UIDatePickerMode.Date;
			date.DatePicker.ValueChanged += (sender, e) => {
				DateTime selectedDate = (sender as UIDatePicker).Date;
				buttonDate.SetTitle(selectedDate.ToString("d"), UIControlState.Normal); 
			};

			amount = new UITextField () { 
				Placeholder = "$ amount?",
				BorderStyle = UITextBorderStyle.None,
				Font = UIFont.FromName("AvenirNext-Medium", 16f),
				TextColor = UIColor.Black,
				BackgroundColor = UIColor.White,
				KeyboardType = UIKeyboardType.NumberPad
			};




			buttonDate = UIButton.FromType (UIButtonType.Custom);
			buttonDate.SetTitle ("spent on Wednessday, Jul 17, 2013", UIControlState.Normal);
			buttonDate.SetTitleColor (UIColor.White, UIControlState.Normal);
			buttonDate.SetTitleColor (UIColor.LightGray, UIControlState.Highlighted);
			buttonDate.Font = UIFont.FromName ("AvenirNext-Medium", 16f);

			buttonDate.TouchUpInside += (sender, e) => {
				date.Show(); 
			};

			TripHeaderView.SizeToFit ();
			addExpenseLabel.SizeToFit();
			buttonDate.SizeToFit();
			expenseName.SizeToFit();
			amount.SizeToFit();

			AddSubviews (TripHeaderView, addExpenseLabel, expenseName, amount, buttonDate);
		}

        public override void ViewDidLoad()
        {
            base.ViewDidLoad();

            // For accelerometer readings
            motionManager = new CMMotionManager();
            motionManager.AccelerometerUpdateInterval = 0.01; // 100Hz

            //To handle long presses and bring up path start/end menu
            var longPressManager = new UILongPressGestureRecognizer();

            //Graph loading code
			//Graph loading code
			var assembly = Assembly.GetExecutingAssembly();
			var asset = assembly.GetManifestResourceStream("Navigator.iOS.Resources.dcsfloorWideDoors.xml");

			pf = new Pathfinding.Pathfinding(new Dictionary<int, Stream>()
				{
					{0,assembly.GetManifestResourceStream("Navigator.iOS.Resources.dcsfloorWideDoors.xml")},
					{1,assembly.GetManifestResourceStream("Navigator.iOS.Resources.dcsFloor1.xml")}
				},assembly.GetManifestResourceStream("Navigator.iOS.Resources.Rooms.xml") );
			pf.CurrentFloor = 0;

			while (true)
			{
				if (pf.Ready)            

					break;
				Thread.Sleep(500);
			}
				
			//set up the search bar and prediction box
			var searchController = new CustomSearchController(this, SearchBar, SearchPredictionTable, pf.Rooms);
		
            floorPlanGraph = Graph.Load(asset);

            wallCollImg = UIImage.FromBundle("Images/dcsfloorWideDoors.png");

            col = new Collision(floorPlanGraph, new StepDetector());

            ((Collision)col).WallCol = new WallCollision ((x,y) => GetPixelColor(new PointF(x, y), wallCollImg));
            wallColTest = new WallCollision ((x,y) => GetPixelColor(new PointF(x, y), wallCollImg));

            pathView = new PathView (wallColTest);

            col.SetLocation(707.0f, 677.0f);
            col.PassHeading(90);
            col.PositionChanged += HandleStepsTaken;

			//Container for floorplan and any overlaid images
            var container = new UIView();

			//Will contain floorplan images
            floorplanImageView = new UIImageView();

			//Load floorplan images
            floorplanImageNoGrid = UIImage.FromBundle("Images/FinalDcsFloor1.png");
            floorplanImageWithGrid = UIImage.FromBundle("Images/dcsFloorWideDoorsGrid.png");

			//Initiate the location arrow
            locationArrow = new LocationArrowImageView();
            locationArrow.ScaleFactor = floorplanView.ZoomScale;
            pathView.ScaleFactor = floorplanView.ZoomScale;
            setStartPoint(690.0f, 840.0f);

			//Set sizes for floorplan view and path view
            floorplanView.ContentSize = floorplanImageNoGrid.Size;
            pathView.Frame = new CGRect(new CGPoint(0, 0), floorplanImageNoGrid.Size);

			//Add subviews to the container (including pathview and floorplanview)
            container.AddSubview(floorplanImageView);
            container.AddSubview(locationArrow);
            floorplanImageView.AddSubview(pathView);
            changeFloorPlanImage(floorplanImageView, floorplanImageNoGrid);
            container.SizeToFit();

			//Adjust scrolling and zooming properties for the floorplanView
            floorplanView.MaximumZoomScale = 1f;
            floorplanView.MinimumZoomScale = .25f;
            floorplanView.AddSubview(container);
            floorplanView.ViewForZoomingInScrollView += (UIScrollView sv) => { return floorplanImageView; };

			//Variables needed to convert device acceleration to world z direction acceleration
			double accelX = 0, accelY = 0, accelZ = 0;

			//Scale location arrow and paths when zooming the floorplan
            floorplanView.DidZoom += (sender, e) =>
            {
                locationArrow.ScaleFactor = floorplanView.ZoomScale;
                pathView.ScaleFactor = floorplanView.ZoomScale;
            };

			//Pass acceleremoter values to the collision class
            motionManager.StartAccelerometerUpdates(NSOperationQueue.CurrentQueue,
                (data, error) =>
                {
					accelX = data.Acceleration.X*9.8;
					accelY = data.Acceleration.Y*9.8;
					accelZ = Math.Sqrt(Math.Pow(accelX, 2) + Math.Pow(accelY, 2) + Math.Pow(data.Acceleration.Z*9.8, 2));

//.........这里部分代码省略.........

 private void layoutElementBelow(UIView topElement, UIView bottomElement, int padding)
 {
     bottomElement.Frame = new RectangleF(_margin, topElement.Frame.Y + topElement.Frame.Height + padding,
                                          ElementWidth, 0);
     bottomElement.SizeToFit();
 }