C# UITextField.AtLeftOf方法代码示例

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

            var button = new UIButton(UIButtonType.RoundedRect);
            button.SetTitle("Search", UIControlState.Normal);
            Add(button);

            var text = new UITextField() { BorderStyle = UITextBorderStyle.RoundedRect };
            Add(text);

            View.SubviewsDoNotTranslateAutoresizingMaskIntoConstraints();

            var set = this.CreateBindingSet<SearchView, SearchViewModel>();
            set.Bind(button).To("Search");
            set.Bind(text).To(vm => vm.SearchText);
            set.Apply();

            var hPadding = 10;
            var vPadding = 10;
            var ButtonWidth = 100;

            View.AddConstraints(

                    button.AtTopOf(View).Plus(vPadding),
                    button.AtRightOf(View).Minus(hPadding),
                    button.Width().EqualTo(ButtonWidth),

                    text.AtLeftOf(View, hPadding),
                    text.ToLeftOf(button, hPadding),
                    text.WithSameTop(button)

                );
        }

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

            var subTotal = new UITextField() { BorderStyle = UITextBorderStyle.RoundedRect };
            subTotal.KeyboardType = UIKeyboardType.DecimalPad;
            Add(subTotal);

            var seek = new UISlider()
                {
                    MinValue = 0,
                    MaxValue = 100,
                };
            Add(seek);

            var seekLabel = new UILabel();
            Add(seekLabel);

            var tipLabel = new UILabel();
            Add(tipLabel);

            var totalLabel = new UILabel();
            Add(totalLabel);

            var set = this.CreateBindingSet<TipView, TipViewModel>();
            set.Bind(subTotal).To(vm => vm.SubTotal);
            set.Bind(seek).To(vm => vm.Generosity);
            set.Bind(seekLabel).To(vm => vm.Generosity);
            set.Bind(tipLabel).To(vm => vm.Tip);
            set.Bind(totalLabel).To("SubTotal + Tip");
            set.Apply();

            View.SubviewsDoNotTranslateAutoresizingMaskIntoConstraints();

            var margin = 10;
            View.AddConstraints(
                    subTotal.AtLeftOf(View, margin),
                    subTotal.AtTopOf(View, margin),
                    subTotal.AtRightOf(View, margin),

                    seek.WithSameLeft(subTotal),
                    seek.Below(subTotal, margin),
                    seek.ToLeftOf(seekLabel, margin),
                    seek.WithRelativeWidth(seekLabel, 3),

                    seekLabel.WithSameRight(subTotal),
                    seekLabel.WithSameTop(seek),

                    tipLabel.Below(seek, margin),
                    tipLabel.WithSameLeft(seek),
                    tipLabel.WithSameWidth(totalLabel),

                    totalLabel.WithSameTop(tipLabel),
                    totalLabel.ToRightOf(tipLabel, margin),
                    totalLabel.WithSameRight(subTotal)
                );
        }

        public override void LoadView ()
        {
            View = new UIView ()
                .Apply (Style.Screen);

            View.Add (inputsContainer = new UIView ().Apply (Style.Signup.InputsContainer));

            inputsContainer.Add (topBorder = new UIView ().Apply (Style.Signup.InputsBorder));

            inputsContainer.Add (emailTextField = new UITextField () {
                Placeholder = "SignupEmailHint".Tr (),
                AutocapitalizationType = UITextAutocapitalizationType.None,
                KeyboardType = UIKeyboardType.EmailAddress,
                ReturnKeyType = UIReturnKeyType.Next,
                ClearButtonMode = UITextFieldViewMode.Always,
                ShouldReturn = HandleShouldReturn,
            }.Apply (Style.Signup.EmailField));
            emailTextField.EditingChanged += OnTextFieldEditingChanged;

            inputsContainer.Add (middleBorder = new UIView ().Apply (Style.Signup.InputsBorder));

            inputsContainer.Add(passwordTextField = new PasswordTextField () {
                Placeholder = "SignupPasswordHint".Tr (),
                AutocapitalizationType = UITextAutocapitalizationType.None,
                AutocorrectionType = UITextAutocorrectionType.No,
                SecureTextEntry = true,
                ReturnKeyType = UIReturnKeyType.Go,
                ShouldReturn = HandleShouldReturn,
            }.Apply (Style.Signup.PasswordField));
            passwordTextField.EditingChanged += OnTextFieldEditingChanged;

            inputsContainer.Add (bottomBorder = new UIView ().Apply (Style.Signup.InputsBorder));

            View.Add (passwordActionButton = new UIButton ()
                .Apply (Style.Signup.SignupButton));
            passwordActionButton.SetTitle ("SignupSignupButtonText".Tr (), UIControlState.Normal);
            passwordActionButton.TouchUpInside += OnPasswordActionButtonTouchUpInside;

            View.Add (googleActionButton = new UIButton ()
                .Apply (Style.Signup.GoogleButton));
            googleActionButton.SetTitle ("SignupGoogleButtonText".Tr (), UIControlState.Normal);
            googleActionButton.TouchUpInside += OnGoogleActionButtonTouchUpInside;

            View.Add (legalLabel = new TTTAttributedLabel () {
                Delegate = new LegalLabelDelegate (),
            }.Apply (Style.Signup.LegalLabel));
            SetLegalText (legalLabel);

            inputsContainer.AddConstraints (
                topBorder.AtTopOf (inputsContainer),
                topBorder.AtLeftOf (inputsContainer),
                topBorder.AtRightOf (inputsContainer),
                topBorder.Height ().EqualTo (1f),

                emailTextField.Below (topBorder),
                emailTextField.AtLeftOf (inputsContainer, 20f),
                emailTextField.AtRightOf (inputsContainer, 10f),
                emailTextField.Height ().EqualTo (42f),

                middleBorder.Below (emailTextField),
                middleBorder.AtLeftOf (inputsContainer, 20f),
                middleBorder.AtRightOf (inputsContainer),
                middleBorder.Height ().EqualTo (1f),

                passwordTextField.Below (middleBorder),
                passwordTextField.AtLeftOf (inputsContainer, 20f),
                passwordTextField.AtRightOf (inputsContainer),
                passwordTextField.Height ().EqualTo (42f),

                bottomBorder.Below (passwordTextField),
                bottomBorder.AtLeftOf (inputsContainer),
                bottomBorder.AtRightOf (inputsContainer),
                bottomBorder.AtBottomOf (inputsContainer),
                bottomBorder.Height ().EqualTo (1f)
            );

            inputsContainer.SubviewsDoNotTranslateAutoresizingMaskIntoConstraints ();

            View.AddConstraints (
                inputsContainer.AtTopOf (View, 80f),
                inputsContainer.AtLeftOf (View),
                inputsContainer.AtRightOf (View),

                passwordActionButton.Below (inputsContainer, 20f),
                passwordActionButton.AtLeftOf (View),
                passwordActionButton.AtRightOf (View),
                passwordActionButton.Height ().EqualTo (60f),

                googleActionButton.Below (passwordActionButton, 5f),
                googleActionButton.AtLeftOf (View),
                googleActionButton.AtRightOf (View),
                googleActionButton.Height ().EqualTo (60f),

                legalLabel.AtBottomOf (View, 30f),
                legalLabel.AtLeftOf (View, 40f),
                legalLabel.AtRightOf (View, 40f)
            );

            View.SubviewsDoNotTranslateAutoresizingMaskIntoConstraints ();

//.........这里部分代码省略.........

        public override void LoadView ()
        {
            View = new UIView ()
                .Apply (Style.Screen);

            View.Add (inputsContainer = new UIView ().Apply (Style.Login.InputsContainer));

            inputsContainer.Add (topBorder = new UIView ().Apply (Style.Login.InputsBorder));

            inputsContainer.Add (emailTextField = new UITextField () {
                Placeholder = "LoginEmailHint".Tr (),
                AutocapitalizationType = UITextAutocapitalizationType.None,
                KeyboardType = UIKeyboardType.EmailAddress,
                ReturnKeyType = UIReturnKeyType.Next,
                ClearButtonMode = UITextFieldViewMode.Always,
                ShouldReturn = HandleShouldReturn,
            }.Apply (Style.Login.EmailField));

            inputsContainer.Add (middleBorder = new UIView ().Apply (Style.Login.InputsBorder));

            inputsContainer.Add (passwordTextField = new UITextField () {
                Placeholder = "LoginPasswordHint".Tr (),
                AutocapitalizationType = UITextAutocapitalizationType.None,
                AutocorrectionType = UITextAutocorrectionType.No,
                SecureTextEntry = true,
                ReturnKeyType = UIReturnKeyType.Go,
                ShouldReturn = HandleShouldReturn,
            }.Apply (Style.Login.PasswordField));

            inputsContainer.Add (bottomBorder = new UIView ().Apply (Style.Login.InputsBorder));

            View.Add (passwordActionButton = new UIButton ()
                .Apply (Style.Login.LoginButton));
            passwordActionButton.SetTitle ("LoginLoginButtonText".Tr (), UIControlState.Normal);
            passwordActionButton.TouchUpInside += OnPasswordActionButtonTouchUpInside;

            inputsContainer.AddConstraints (
                topBorder.AtTopOf (inputsContainer),
                topBorder.AtLeftOf (inputsContainer),
                topBorder.AtRightOf (inputsContainer),
                topBorder.Height ().EqualTo (1f),

                emailTextField.Below (topBorder),
                emailTextField.AtLeftOf (inputsContainer, 20f),
                emailTextField.AtRightOf (inputsContainer, 10f),
                emailTextField.Height ().EqualTo (42f),

                middleBorder.Below (emailTextField),
                middleBorder.AtLeftOf (inputsContainer, 20f),
                middleBorder.AtRightOf (inputsContainer),
                middleBorder.Height ().EqualTo (1f),

                passwordTextField.Below (middleBorder),
                passwordTextField.AtLeftOf (inputsContainer, 20f),
                passwordTextField.AtRightOf (inputsContainer),
                passwordTextField.Height ().EqualTo (42f),

                bottomBorder.Below (passwordTextField),
                bottomBorder.AtLeftOf (inputsContainer),
                bottomBorder.AtRightOf (inputsContainer),
                bottomBorder.AtBottomOf (inputsContainer),
                bottomBorder.Height ().EqualTo (1f)
            );

            inputsContainer.SubviewsDoNotTranslateAutoresizingMaskIntoConstraints ();

            View.AddConstraints (
                inputsContainer.AtTopOf (View, 80f),
                inputsContainer.AtLeftOf (View),
                inputsContainer.AtRightOf (View),

                passwordActionButton.Below (inputsContainer, 20f),
                passwordActionButton.AtLeftOf (View),
                passwordActionButton.AtRightOf (View),
                passwordActionButton.Height ().EqualTo (60f)
            );

            View.SubviewsDoNotTranslateAutoresizingMaskIntoConstraints ();
        }

        public override void ViewDidLoad()
        {
            base.ViewDidLoad();
            View.BackgroundColor = UIColor.Blue;
            TheViewController = this;

            //Enumerate SVG with BundleResource action in the Resources/svg folder
            //var path = Path.Combine(NSBundle.MainBundle.BundlePath,"svg");
            var bundleSvgs = new List<string>(); //Directory.EnumerateFiles(path, "*.svg").Select(Path.GetFileName).OrderBy(s => s).ToList();

            //Enumerate SVG with EmbeddedResource action in the XamSvgDemo.Shared project, in the images folder.
            var assembly = typeof (App).GetTypeInfo().Assembly;
            var sharedSvgs = assembly.GetManifestResourceNames().Where(n => n.EndsWith(".svg")).OrderBy(n => n).ToArray();

            //Combine both lists
            var svgNames = bundleSvgs.Select(s => "svg/" + s).Concat(
                            sharedSvgs.Select(s => "res:" + s)
                            ).ToList();

            var index = 0;

#if !USEAUTOLAYOUT
            //Fix width, let height be changed by UISvgImageView
            var bounds = UIScreen.MainScreen.Bounds;
            image = new UISvgImageView(svgNames[index], bounds.Width, 0) { Frame = new CGRect(0,0,bounds.Width, bounds.Height) };
#else
            image = new UISvgImageView(svgNames[index]);
#endif

            image.Layer.BorderWidth = 1;
            image.Layer.BorderColor = UIColor.Green.CGColor;
            View.Add(image);

            title = new UILabel
            {
                TextColor=UIColor.White,
                Font = UIFont.SystemFontOfSize(14f),
                LineBreakMode = UILineBreakMode.CharacterWrap,
                Lines = 0,
#if !USEAUTOLAYOUT
                Frame = new CGRect(0,30,320,100),
#endif
            };
            View.Add(title);

#if USEAUTOLAYOUT
            var back = new UIView {BackgroundColor = UIColor.DarkGray.ColorWithAlpha(.6f)};
            var back2 = new UIView { BackgroundColor = UIColor.Clear };
            var inputUrl = new UITextField
            {
                TextColor = UIColor.White, Font = UIFont.SystemFontOfSize(14f),

                AttributedPlaceholder = new NSMutableAttributedString("Enter url of svg file, or tap anywhere for demo",
                    foregroundColor: UIColor.Gray, font: UIFont.ItalicSystemFontOfSize(12)),
                KeyboardType = UIKeyboardType.Url, AutocorrectionType = UITextAutocorrectionType.No,
                AutocapitalizationType = UITextAutocapitalizationType.None,
                //ReturnKeyType = UIReturnKeyType.Go,
                //EnablesReturnKeyAutomatically = true, ShouldReturn = 
            };
            //var inputOk = new UISvgImageView("res:images.download", 25, colorMapping: "000000=FF546D", colorMappingSelected: "000000=00FF59")
            //{
            //    UserInteractionEnabled = true,
            //};
            var inputOk = new UISvgImageView
            {
                UserInteractionEnabled = true,
                TranslatesAutoresizingMaskIntoConstraints = false,
                FillWidth = 25,
                ColorMapping="000000=FF546D",
                ColorMappingSelected="000000=00FF59",
                BundleName = "res:images.download"
            };
            //var inputOk = new UISvgImageView("", 25); //for debug
            View.Add(back);
            View.Add(back2);
            View.SendSubviewToBack(back);
            View.SendSubviewToBack(image); //image behind back
            View.Add(inputUrl);
            View.Add(inputOk);

            inputOk.AddGestureRecognizer(new UITapGestureRecognizer(tap =>
            {
                inputUrl.ResignFirstResponder();
                var dontWait = LoadSvg(inputUrl.Text);
            }));

            inputUrl.EditingDidBegin += (sender, args) =>
            {
                inputUrl.SelectAll(this);
            };

            inputUrl.SetContentHuggingPriority((float)UILayoutPriority.FittingSizeLevel, UILayoutConstraintAxis.Horizontal);
            inputOk.SetContentCompressionResistancePriority((float)UILayoutPriority.Required, UILayoutConstraintAxis.Horizontal);
            View.SubviewsDoNotTranslateAutoresizingMaskIntoConstraints();
            View.AddConstraints(
                back.WithSameTop(inputOk).Minus(5),
                back.AtLeftOf(View),
                back.AtRightOf(View),
                back.WithSameBottom(title).Plus(5),

//.........这里部分代码省略.........