C# UILabel.AtTopOf方法代码示例

        public UICustomProgressView()
        {
            currentProgressLabel = new UILabel();
            currentProgressLabel.Text = "10000000";

            ofProgressLabel = new UILabel();
            ofProgressLabel.Text = "of";

            totalProgressLabel = new UILabel();
            totalProgressLabel.Text = "10000000";

            progressNoContainer = new UIView();
            progressNoContainer.BackgroundColor = UIColor.Yellow;
            progressNoContainer.Layer.BorderColor = UIColor.Red.CGColor;
            progressNoContainer.Layer.BorderWidth = 2f;

            progressNoContainer.AddSubviews(new UIView[] { currentProgressLabel, ofProgressLabel, totalProgressLabel });
            progressNoContainer.SubviewsDoNotTranslateAutoresizingMaskIntoConstraints();
            progressNoContainer.AddConstraints(new[]
            {
                currentProgressLabel.AtTopOf(progressNoContainer),
                currentProgressLabel.WithSameCenterX(progressNoContainer).Minus(25),
                currentProgressLabel.Height().EqualTo(30),

                ofProgressLabel.WithSameTop(currentProgressLabel),
                ofProgressLabel.ToRightOf(currentProgressLabel).Plus(5),
                ofProgressLabel.WithSameHeight(currentProgressLabel),

                totalProgressLabel.WithSameBottom(ofProgressLabel),
                totalProgressLabel.ToRightOf(ofProgressLabel).Plus(5),
                totalProgressLabel.WithSameHeight(ofProgressLabel)
            });

            AddSubviews(new[] { progressNoContainer });
            this.SubviewsDoNotTranslateAutoresizingMaskIntoConstraints();
            this.AddConstraints(new[]
            {
                progressNoContainer.WithSameCenterY(this),
                progressNoContainer.WithSameRight(this).Minus(10),
                progressNoContainer.Width().EqualTo(100),
                progressNoContainer.Height().EqualTo(30)
            });
        }

        public MyCell(IntPtr ptr)
            : base(ptr)
        {
            HeaderlineLabel = new UILabel { Lines = 0, Font = UIFont.PreferredHeadline };
            Add(HeaderlineLabel);

            BodyLabel = new UILabel { Lines = 0, Font = UIFont.PreferredBody };
            Add(BodyLabel);

            this.SubviewsDoNotTranslateAutoresizingMaskIntoConstraints();
            this.AddConstraints
                (
                    HeaderlineLabel.AtTopOf(this, Margin),
                    HeaderlineLabel.WithSameLeft(this).Plus(Margin),
                    HeaderlineLabel.WithSameRight(this).Minus(Margin),

                    BodyLabel.Below(HeaderlineLabel).Plus(Margin/2),
                    BodyLabel.WithSameLeft(HeaderlineLabel),
                    BodyLabel.WithSameRight(HeaderlineLabel),
                    BodyLabel.AtBottomOf(this, Margin)
                );
        }

            private static void ConstructDateTimeView (UIView view, ref UILabel dateLabel, ref UILabel timeLabel)
            {
                view.Add (dateLabel = new UILabel ().Apply (Style.EditTimeEntry.DateLabel));
                view.Add (timeLabel = new UILabel ().Apply (Style.EditTimeEntry.TimeLabel));
                view.AddConstraints (
                    dateLabel.AtTopOf (view, 10f),
                    dateLabel.AtLeftOf (view, 10f),
                    dateLabel.AtRightOf (view, 10f),

                    timeLabel.Below (dateLabel, 2f),
                    timeLabel.AtBottomOf (view, 10f),
                    timeLabel.AtLeftOf (view, 10f),
                    timeLabel.AtRightOf (view, 10f)
                );
                view.SubviewsDoNotTranslateAutoresizingMaskIntoConstraints ();
            }

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

            View.BackgroundColor = UIColorHelpers.GetRandomColor();

            var label = new UILabel();
            Title = label.Text = $"Page {Number}";

            Add(label);

            View.SubviewsDoNotTranslateAutoresizingMaskIntoConstraints();

            View.AddConstraints(
                label.AtTopOf(View, 10f),
                label.AtLeftOf(View, 10f),
                label.AtRightOf(View, 10f));
        }

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

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

            var fNameLabel = new UILabel {Text = "First"};
            Add(fNameLabel);

            var sNameLabel = new UILabel {Text = "Last"};
            Add(sNameLabel);

            var numberLabel = new UILabel {Text = "#"};
            Add(numberLabel);

            var streetLabel = new UILabel {Text = "Street"};
            Add(streetLabel);

            var townLabel = new UILabel {Text = "Town"};
            Add(townLabel);

            var zipLabel = new UILabel {Text = "Zip"};
            Add(zipLabel);

            var fNameField = new UITextField() { BackgroundColor = UIColor.LightGray, BorderStyle = UITextBorderStyle.RoundedRect };
            Add(fNameField);

            var sNameField = new UITextField() { BackgroundColor = UIColor.LightGray, BorderStyle = UITextBorderStyle.RoundedRect };
            Add(sNameField);

            var numberField = new UITextField() { BackgroundColor = UIColor.LightGray, BorderStyle = UITextBorderStyle.RoundedRect };
            Add(numberField);

            var streetField = new UITextField() { BackgroundColor = UIColor.LightGray, BorderStyle = UITextBorderStyle.RoundedRect };
            Add(streetField);

            var townField = new UITextField() { BackgroundColor = UIColor.LightGray, BorderStyle = UITextBorderStyle.RoundedRect };
            Add(townField);

            var zipField = new UITextField() { BackgroundColor = UIColor.LightGray, BorderStyle = UITextBorderStyle.RoundedRect };
            Add(zipField);

            var debug = new UILabel() { BackgroundColor = UIColor.White, Lines = 0 };
            Add(debug);

            var set = this.CreateBindingSet<FormView, FormViewModel>();
            set.Bind(fNameField).To(vm => vm.FirstName);
            set.Bind(sNameField).To(vm => vm.LastName);
            set.Bind(numberField).To(vm => vm.Number);
            set.Bind(streetField).To(vm => vm.Street);
            set.Bind(townField).To(vm => vm.Town);
            set.Bind(zipField).To(vm => vm.Zip);
            set.Bind(debug).To("FirstName  + ' ' + LastName + ', '  + Number + ' ' + Street + ' ' + Town + ' ' + Zip");
            set.Apply();

            View.SubviewsDoNotTranslateAutoresizingMaskIntoConstraints();

            var hMargin = 10;
            var vMargin = 10;


            View.AddConstraints(

                fNameLabel.AtTopOf(View, vMargin),
                fNameLabel.AtLeftOf(View, hMargin),
                fNameLabel.ToLeftOf(sNameLabel, hMargin),

                sNameLabel.WithSameTop(fNameLabel),
                sNameLabel.AtRightOf(View, hMargin),
                sNameLabel.WithSameWidth(fNameLabel),

                fNameField.WithSameWidth(fNameLabel),
                fNameField.WithSameLeft(fNameLabel),
                fNameField.Below(fNameLabel, vMargin),

                sNameField.WithSameLeft(sNameLabel),
                sNameField.WithSameWidth(sNameLabel),
                sNameField.WithSameTop(fNameField),

                numberLabel.WithSameLeft(fNameLabel),
                numberLabel.ToLeftOf(streetLabel, hMargin),
                numberLabel.Below(fNameField, vMargin),
                numberLabel.WithRelativeWidth(streetLabel, 0.3f),

                streetLabel.WithSameTop(numberLabel),
                streetLabel.AtRightOf(View, hMargin),

                numberField.WithSameLeft(numberLabel),
                numberField.WithSameWidth(numberLabel),
                numberField.Below(numberLabel, vMargin),

                streetField.WithSameLeft(streetLabel),
                streetField.WithSameWidth(streetLabel),
                streetField.WithSameTop(numberField),

                townLabel.WithSameLeft(fNameLabel),
                townLabel.WithSameRight(streetLabel),
//.........这里部分代码省略.........