C# UILabel.SizeToFit方法代码示例

		public override UITableViewCell GetCell(UITableView tv)
		{
			RectangleF frame;
			if (datePicker == null)
			{
				label = new UILabel
				{
					Text = Caption
				};
				label.SizeToFit();
				frame = label.Frame;
				frame.X = 15;
				frame.Y = 5;
				label.Frame = frame;

				datePicker = CreatePicker();
				
			}
			if(datePicker.Date != DateValue)
				datePicker.Date = DateValue;

			frame = datePicker.Frame;
			frame.Y = frame.X = 0;
			datePicker.Frame = frame;
			var cell = tv.DequeueReusableCell("datePicker") ?? new UITableViewCell(UITableViewCellStyle.Default, "datePicker") { Accessory = UITableViewCellAccessory.None };
			cell.ContentView.Add(label);
			if(cell.ContentView != datePicker.Superview)
				cell.ContentView.Add(datePicker);
			
			return cell;
		}

        public ProductDescriptionView()
        {
            //this.TranslatesAutoresizingMaskIntoConstraints = false;
            Name = new UILabel
                {
                    Text = "Name",
                    BackgroundColor = UIColor.Clear,
                    TextColor = UIColor.DarkGray,
                    Font = UIFont.SystemFontOfSize(25f),
                    TranslatesAutoresizingMaskIntoConstraints = false,
                };
            Name.SizeToFit();
            this.AddSubview(Name);

            DescriptionLabel = new UILabel
                {
                    BackgroundColor = UIColor.Clear,
                    TextColor = UIColor.DarkGray,
                    TranslatesAutoresizingMaskIntoConstraints = false,
                    Font = UIFont.SystemFontOfSize(12),
                    LineBreakMode = UILineBreakMode.WordWrap,
                    Lines = 0
                };
            AddSubview(DescriptionLabel);

            Price = new UILabel
                {
                    BackgroundColor = UIColor.Clear,
                    Text = "Price",
                    TextColor = Color.Blue,
                    TranslatesAutoresizingMaskIntoConstraints = false,
                };
            Price.SizeToFit();
            AddSubview(Price);
        }

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

            recipes = DataLoader.GetRecipes ();

            var toolbarBg = FoodyTheme.SharedTheme.ToolbarBackgroundForSplitView (true);
            ToolbarBottom.SetBackgroundImage (toolbarBg, UIToolbarPosition.Bottom, UIBarMetrics.Default);

            var navbarBg = FoodyTheme.SharedTheme.NavigationBackgroundForSplitView (true);
            NavigationController.NavigationBar.SetBackgroundImage (navbarBg, UIBarMetrics.Default);

            DishTableView.WeakDelegate = this;
            DishTableView.WeakDataSource = this;
            DishTableView.BackgroundColor = UIColor.Clear;
            DishTableView.SeparatorStyle = UITableViewCellSeparatorStyle.None;

            var label = new UILabel ();
            label.BackgroundColor = UIColor.Clear;
            label.Font = UIFont.SystemFontOfSize (20);
            label.ShadowColor = UIColor.Black;
            label.TextAlignment = UITextAlignment.Center;
            label.TextColor = UIColor.White;
            NavigationItem.TitleView = label;

            label.Text = "Dishes";
            label.SizeToFit ();

            FoodyTheme.Apply (View);
        }

		public void RenderStream (Stream stream)
		{
			var reader = new StreamReader (stream);

			InvokeOnMainThread (delegate {
				button1.Enabled = true;
				var view = new UIViewController ();
				var handler = new UILabel (new CGRect (20, 20, 300, 40)) {
					Text = "HttpClient is using " + HandlerType?.Name,
					Lines = 0
				};
				handler.SizeToFit ();

				var label = new UILabel (new CGRect (20, 40, 300, 80)) {
					Text = "The HTML returned by the server:"
				};
				var tv = new UITextView (new CGRect (20, 100, 300, 400)) {
					Text = reader.ReadToEnd ()
				};
				if (HandlerType != null)
					view.Add (handler);
				view.Add (label);
				view.Add (tv);

				if (UIDevice.CurrentDevice.CheckSystemVersion (7, 0)) {
					view.EdgesForExtendedLayout = UIRectEdge.None;
				}

				navigationController.PushViewController (view, true);
			});
		}

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

            UIView header = new UIView(new System.Drawing.RectangleF(0, 0, 0, 184f));
            UIImageView imageView = new UIImageView(new System.Drawing.RectangleF(0, 40f, 100f, 100f));
            imageView.AutoresizingMask = UIViewAutoresizing.FlexibleLeftMargin | UIViewAutoresizing.FlexibleRightMargin;
            imageView.Image = UIImage.FromBundle("avatar.jpg");
            imageView.Layer.MasksToBounds = true;
            imageView.Layer.CornerRadius = 50f;
            imageView.Layer.BorderColor = UIColor.White.CGColor;
            imageView.Layer.BorderWidth = 3f;
            imageView.Layer.RasterizationScale = UIScreen.MainScreen.Scale;
            imageView.Layer.ShouldRasterize = true;
            imageView.ClipsToBounds = true;

            UILabel label = new UILabel(new System.Drawing.RectangleF(0, 150f, 0, 24f)){
                Text = "Roman Efimov",
                Font = UIFont.SystemFontOfSize(21f),
                BackgroundColor = UIColor.Clear,
                TextColor = UIColor.FromRGBA(62/255f, 68/255f, 75/255f, 1f)
            };
            label.SizeToFit();
            label.AutoresizingMask = UIViewAutoresizing.FlexibleLeftMargin | UIViewAutoresizing.FlexibleRightMargin;
            header.AddSubview(imageView);
            header.AddSubview(label);

            TableView.SeparatorColor = UIColor.FromRGBA(150/255f, 161/255f, 177/255f, 1f);
            TableView.Source = new DEMOTableSource(this);
            TableView.Opaque = false;
            TableView.BackgroundColor = UIColor.Clear;
            TableView.TableHeaderView = header;
        }

                public PrimaryCell( CGSize parentSize, UITableViewCellStyle style, string cellIdentifier ) : base( style, cellIdentifier )
                {
                    BackgroundColor = Rock.Mobile.UI.Util.GetUIColor( ControlStylingConfig.BG_Layer_Color );
                    SelectionStyle = UITableViewCellSelectionStyle.None;

                    Image = new UIImageView( );
                    Image.BackgroundColor = UIColor.Yellow;
                    Image.ContentMode = UIViewContentMode.ScaleAspectFill;
                    Image.Layer.AnchorPoint = CGPoint.Empty;
                    AddSubview( Image );

                    // Banner Image
                    Image.Image = new UIImage( NSBundle.MainBundle.BundlePath + "/" + PrivateConnectConfig.MainPageHeaderImage );
                    Image.SizeToFit( );

                    // resize the image to fit the width of the device
                    nfloat imageAspect = Image.Bounds.Height / Image.Bounds.Width;
                    Image.Frame = new CGRect( 0, 0, parentSize.Width, parentSize.Width * imageAspect );


                    Title = new UILabel( );
                    Title.Text = ConnectStrings.Main_Connect_Header;
                    Title.Font = Rock.Mobile.PlatformSpecific.iOS.Graphics.FontManager.GetFont( ControlStylingConfig.Font_Bold, ControlStylingConfig.Large_FontSize );
                    Title.Layer.AnchorPoint = CGPoint.Empty;
                    Title.TextColor = Rock.Mobile.UI.Util.GetUIColor( ControlStylingConfig.TextField_ActiveTextColor );
                    Title.LineBreakMode = UILineBreakMode.TailTruncation;
                    Title.TextAlignment = UITextAlignment.Center;
                    Title.Frame = new CGRect( 5, Image.Frame.Bottom, parentSize.Width - 10, 0 );
                    Title.SizeToFit( );
                    AddSubview( Title );
                }

        private BlurredAlertView(string text)
        {
            _label = new UILabel();
            _label.Lines = 0;
            _label.Text = text;
            _label.Font = UIFont.PreferredHeadline;
            _label.TextAlignment = UITextAlignment.Center;
            _label.TextColor = UIColor.White;

            _button = new UIButton(UIButtonType.Custom);

            var buttonLabel = new UILabel();
            buttonLabel.Text = "Ok";
            buttonLabel.Font = UIFont.PreferredBody.MakeBold();
            buttonLabel.TextColor = UIColor.White;
            buttonLabel.SizeToFit();
            buttonLabel.AutoresizingMask = UIViewAutoresizing.FlexibleMargins;

            _button.Add(buttonLabel);

            _button.Layer.BorderColor = UIColor.White.CGColor;
            _button.Layer.BorderWidth = 1f;
            _button.Layer.CornerRadius = 6f;
            _button.Layer.MasksToBounds = true;
        }

		public BasketViewController (Order order)
		{
			this.Title = "Your Basket";
			//This hides the back button text when you leave this View Controller
			this.NavigationItem.BackBarButtonItem = new UIBarButtonItem ("", UIBarButtonItemStyle.Plain, handler: null);
			TableView.Source = new TableViewSource (this.order = order) {
				RowDeleted = CheckEmpty,
			};
			TableView.SeparatorStyle = UITableViewCellSeparatorStyle.None;
			TableView.RowHeight = 75;
			TableView.TableFooterView = new UIView (new RectangleF (0, 0, 0, BottomButtonView.Height));
			this.View.AddSubview (BottomView = new BottomButtonView () {
				ButtonText = "Checkout",
				ButtonTapped = () => {
					if (Checkout != null)
						Checkout (this, EventArgs.Empty);
				}
			});
			CheckEmpty (false);
			totalAmount = new UILabel () {
				Text = "$1,000",
				TextColor = UIColor.White,
				TextAlignment = UITextAlignment.Center,
				Font = UIFont.BoldSystemFontOfSize (17),
			};
			totalAmount.SizeToFit ();
			this.NavigationItem.RightBarButtonItem = new UIBarButtonItem (totalAmount);
			UpdateTotals ();
		}

        public ForumTopicPostsTableCell(NSString cellId)
            : base(UITableViewCellStyle.Default, cellId)
        {
            try
            {
                SelectionStyle = UITableViewCellSelectionStyle.Gray;

                headingLabel = new UILabel()
                {
                    TextAlignment = UITextAlignment.Left,
                    BackgroundColor = UIColor.Gray,
                    TextColor = UIColor.White,
                    Lines = 0,
                    LineBreakMode = UILineBreakMode.WordWrap
                };
                headingLabel.Font = UIFont.FromName(headingLabel.Font.Name, headingLabel.Font.PointSize - 2);

                textLabel = new UILabel();
                
                textLabel.Lines = 0;
                textLabel.LineBreakMode = UILineBreakMode.WordWrap;
                textLabel.SizeToFit();
                textLabel.Font = UIFont.FromName(textLabel.Font.Name, textLabel.Font.PointSize);

                ContentView.Add(headingLabel);
                ContentView.Add(textLabel);
                //ContentView.SizeToFit();
            }
            catch (Exception exception)
            {
                ErrorHandler.Save(exception, MobileTypeEnum.iPhone);
            }
        }

		void LoadAllowedTextsLabel()
		{
			UILabel label = new UILabel ();
			label.Frame = frameRect;
			label.TextColor = UIColor.FromRGB (38/255.0f, 38/255.0f, 38/255.0f);
			label.Text = "Allowed Characters";
			label.Font = UIFont.BoldSystemFontOfSize(12);
			label.SizeToFit();
			label.Frame = new CGRect(frameRect.Location.X, 10, frameRect.Size.Width, label.Frame.Size.Height);
			this.AddSubview (label);

			frameRect.Location = new CGPoint(frameRect.Location.X, (10 + label.Frame.Size.Height + frameMargin));
			frameRect.Size = new CGSize(frameRect.Size.Width, (frameRect.Size.Height - label.Frame.Size.Height + frameMargin));

			UILabel allowedTextsLabel = new UILabel ();
			allowedTextsLabel.Frame = frameRect;
			allowedTextsLabel.TextColor = UIColor.FromRGB (63/255.0f, 63/255.0f, 63/255.0f);
			allowedTextsLabel.Text = "ASCII values from 0 to 95\nNUL SOH STX ETX EOT ENQ ACK BEL BS HT LF VT FF CR SO SI DLE DC1 DC2 DC3 DC4 NAK SYN ETB CAN EM SUB ESC FS GS RS US SPACE ! \" # $ % & ' ( ) * + , - . / 0 1 2 3 4 5 6 7 8 9 : ; < = > ? @ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z [ \\ ]^ _";
			allowedTextsLabel.Font = UIFont.SystemFontOfSize (10.0f);
			allowedTextsLabel.Lines = 0;
			allowedTextsLabel.SizeToFit ();
			allowedTextsLabel.Frame = new CGRect(frameRect.Location.X, frameRect.Location.Y, frameRect.Size.Width , allowedTextsLabel.Frame.Size.Height);
			this.AddSubview(allowedTextsLabel);

			frameRect.Location = new CGPoint(frameRect.Location.X, (frameRect.Location.Y + allowedTextsLabel.Frame.Size.Height + frameMargin));
			frameRect.Size = new CGSize(frameRect.Size.Width, frameRect.Size.Height - allowedTextsLabel.Frame.Size.Height);
		}

        public override void ViewWillAppear(bool animated)
        {
            base.ViewWillAppear (animated);

            // Perform any additional setup after loading the view, typically from a nib.
            UILabel lab = new UILabel ()
            {
                Text = "Hallo World!",
                Font = UIFont.SystemFontOfSize(40f),
                AutoresizingMask = UIViewAutoresizing.All
            };
            lab.SizeToFit ();

            lab.Center = this.View.Center;

            this.View.BackgroundColor = UIColor.ScrollViewTexturedBackgroundColor;
            var pageView = new UIView(new RectangleF(0, 0, 680, 900))
            {
                BackgroundColor = UIColor.White,
                AutoresizingMask = UIViewAutoresizing.FlexibleDimensions,
                Center = this.View.Center
            };
            this.View.AddSubview(pageView);
            pageView.AddSubview (lab);
        }

		void LoadAllowedTextsLabel()
		{
			UILabel label = new UILabel ();
			label.Frame = frameRect;
			label.TextColor = UIColor.FromRGB (38/255.0f, 38/255.0f, 38/255.0f);
			label.Text = "Allowed Characters";
			label.Font = UIFont.BoldSystemFontOfSize(12);
			label.SizeToFit();
			label.Frame = new CGRect(frameRect.Location.X, 10, frameRect.Size.Width, label.Frame.Size.Height);
			this.AddSubview (label);

			frameRect.Location = new CGPoint(frameRect.Location.X, (10 + label.Frame.Size.Height + frameMargin));
			frameRect.Size = new CGSize(frameRect.Size.Width, (frameRect.Size.Height - label.Frame.Size.Height + frameMargin));

			UILabel allowedTextsLabel = new UILabel ();
			allowedTextsLabel.Frame = frameRect;
			allowedTextsLabel.TextColor = UIColor.FromRGB (63/255.0f, 63/255.0f, 63/255.0f);
			allowedTextsLabel.Text = "All 128 ASCII Characters";
			allowedTextsLabel.Font = UIFont.SystemFontOfSize (10.0f);
			allowedTextsLabel.Lines = 0;
			allowedTextsLabel.SizeToFit ();
			this.AddSubview(allowedTextsLabel);

			frameRect.Location = new CGPoint(frameRect.Location.X, (frameRect.Location.Y + allowedTextsLabel.Frame.Size.Height + frameMargin));
			frameRect.Size = new CGSize(frameRect.Size.Width, frameRect.Size.Height - allowedTextsLabel.Frame.Size.Height);
		}

		void LoadAllowedTextsLabel()
		{
			UILabel label = new UILabel ();
			label.Frame = frameRect;
			label.TextColor = UIColor.FromRGB (38/255.0f, 38/255.0f, 38/255.0f);
			label.Text = "Allowed Characters";
			label.Font = UIFont.BoldSystemFontOfSize(12);
			label.SizeToFit();
			label.Frame = new CGRect(frameRect.Location.X, 10, frameRect.Size.Width, label.Frame.Size.Height);
			this.AddSubview (label);

			frameRect.Location = new CGPoint(frameRect.Location.X, (10 + label.Frame.Size.Height + frameMargin));
			frameRect.Size = new CGSize(frameRect.Size.Width, (frameRect.Size.Height - label.Frame.Size.Height + frameMargin));

			UILabel allowedTextsLabel = new UILabel ();
			allowedTextsLabel.Frame = frameRect;
			allowedTextsLabel.TextColor = UIColor.FromRGB (63/255.0f, 63/255.0f, 63/255.0f);
			allowedTextsLabel.Text = "0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z dash(-) dot(.) $ / + % SPACE";
			allowedTextsLabel.Font = UIFont.SystemFontOfSize (10.0f);
			allowedTextsLabel.Lines = 0;
			allowedTextsLabel.SizeToFit ();
			allowedTextsLabel.Frame = new CGRect(frameRect.Location.X, frameRect.Location.Y, frameRect.Size.Width , allowedTextsLabel.Frame.Size.Height);
			this.AddSubview(allowedTextsLabel);

			frameRect.Location = new CGPoint(frameRect.Location.X, (frameRect.Location.Y + allowedTextsLabel.Frame.Size.Height + frameMargin));
			frameRect.Size = new CGSize(frameRect.Size.Width, frameRect.Size.Height - allowedTextsLabel.Frame.Size.Height);
		}

		void LoadAllowedTextsLabel()
		{
			UILabel label = new UILabel ();
			label.Frame = frameRect;
			label.Text = "Allowed Characters";
			label.TextColor = UIColor.FromRGB (38/255.0f, 38/255.0f, 38/255.0f);
			label.Font = UIFont.BoldSystemFontOfSize(12);
			label.SizeToFit();
			label.Frame = new CGRect(frameRect.Location.X, 10, frameRect.Size.Width, label.Frame.Size.Height);
			this.AddSubview (label);

			frameRect.Location = new CGPoint(frameRect.Location.X, (10+ label.Frame.Size.Height + frameMargin));
			frameRect.Size = new CGSize(frameRect.Size.Width, (frameRect.Size.Height - label.Frame.Size.Height + frameMargin));

			UILabel allowedTextsLabel = new UILabel ();
			allowedTextsLabel.Frame = frameRect;
			allowedTextsLabel.TextColor = UIColor.FromRGB (63/255.0f, 63/255.0f, 63/255.0f);
			allowedTextsLabel.Text = "ASCII values from 32 to 127\nSPACE ! \" # $ % & ' ( ) * + , - . / 0 1 2 3 4 5 6 7 8 9 : ; < = > ? @ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z [ \\ ]^ _ ` a b c d e f g h i j k l m n o p q r s t u v w x y z { | } ~ DEL";
			allowedTextsLabel.Font = UIFont.SystemFontOfSize (10.0f);
			allowedTextsLabel.Lines = 0;
			allowedTextsLabel.SizeToFit ();
			allowedTextsLabel.Frame = new CGRect(frameRect.Location.X, frameRect.Location.Y, frameRect.Size.Width , allowedTextsLabel.Frame.Size.Height);
			this.AddSubview(allowedTextsLabel);

			frameRect.Location = new CGPoint(frameRect.Location.X, (frameRect.Location.Y + allowedTextsLabel.Frame.Size.Height + frameMargin));
			frameRect.Size = new CGSize(frameRect.Size.Width, frameRect.Size.Height - allowedTextsLabel.Frame.Size.Height);
		}

		public override bool FinishedLaunching (UIApplication app, NSDictionary options)
		{
			// check is it 64bit or 32bit
			Console.WriteLine (IntPtr.Size);

			// Main app do nothing
			// Go to Photo > Edit then choose PhotoFilter to start app extension

			window = new UIWindow (UIScreen.MainScreen.Bounds);
			window.BackgroundColor = UIColor.White;

			note = new UILabel ();
			note.Text = "Note that the app in this sample only serves as a host for the extension. To use the sample extension, edit a photo or video using the Photos app, and tap the extension icon";
			note.Lines = 0;
			note.LineBreakMode = UILineBreakMode.WordWrap;
			var frame = note.Frame;
			note.Frame = new CGRect (0, 0, UIScreen.MainScreen.Bounds.Width * 0.75f, 0);
			note.SizeToFit ();

			window.AddSubview (note);
			note.Center = window.Center;

			window.MakeKeyAndVisible ();
			return true;
		}