C# UIButton.Add方法代码示例

        public ImageAndTitleHeaderView()
            : base(new CGRect(0, 0, 320f, 100f))
        {
            ImageButton = new UIButton(UIButtonType.Custom);
            ImageButton.Frame = new CGRect(0, 0, 80, 80);
            ImageButton.TouchUpInside += (sender, e) => {
                if (ImageButtonAction != null)
                    ImageButtonAction();
            };
            Add(ImageButton);

            _imageView = new UIImageView();
            _imageView.Frame = new CGRect(0, 0, 80, 80);
            _imageView.BackgroundColor = UIColor.White;
            _imageView.Layer.BorderWidth = 2f;
            _imageView.Layer.BorderColor = UIColor.White.CGColor;
            ImageButton.Add(_imageView);

            _label = new UILabel();
            _label.TextAlignment = UITextAlignment.Center;
            _label.Lines = 0;
            _label.Font = UIFont.PreferredHeadline;
            Add(_label);

            _label2 = new UILabel();
            _label2.Hidden = true;
            _label2.TextAlignment = UITextAlignment.Center;
            _label2.Font = UIFont.PreferredSubheadline;
            _label2.Lines = 0;
            Add(_label2);

            _seperatorView = new UIView();
            _seperatorView.BackgroundColor = UIColor.FromWhiteAlpha(214.0f / 255.0f, 1.0f);
            Add(_seperatorView);

            _subView = new UIView();
            _subView.Frame = new CGRect(56, 56, 22, 22);
            _subView.Layer.CornerRadius = 10f;
            _subView.Layer.MasksToBounds = true;
            _subView.BackgroundColor = UIColor.White;
            _subView.Hidden = true;
            ImageButton.Add(_subView);

            _subImageView = new UIImageView(new CGRect(0, 0, _subView.Frame.Width - 4f, _subView.Frame.Height - 4f));
            _subImageView.Center = new CGPoint(11f, 11f);
            _subView.Add(_subImageView);

            EnableSeperator = false;
            RoundedImage = true;
        }

        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 override void ViewDidLoad() {
            base.ViewDidLoad();
            View.AutoresizingMask = UIViewAutoresizing.FlexibleDimensions;
            View.BackgroundColor = UIColor.White;

            var ratingConfig = new RatingConfig(emptyImage: UIImage.FromBundle("Stars/empty"),
                                                filledImage: UIImage.FromBundle("Stars/filled"),
                                                chosenImage: UIImage.FromBundle("Stars/chosen"));
            // [Optional] Put a little space between the rating items.
            ratingConfig.ItemPadding = 5f;
            backgroundButton = UIButton.FromType(UIButtonType.RoundedRect);
            backgroundButton.SetBackgroundImage(UIImage.FromBundle("Background/background").StretchableImage(0, 0), UIControlState.Normal);
            backgroundButton.Frame = new CGRect(new CGPoint(24f, 24f), new CGSize(View.Bounds.Width - (2f * 24f), 125f));

            var ratingFrame = backgroundButton.Bounds;

            ratingView = new PDRatingView(ratingFrame, ratingConfig);

            // [Optional] Set the current rating to display.
            decimal rating = 3.58m;
            //decimal halfRoundedRating = Math.Round(rating * 2m, MidpointRounding.AwayFromZero) / 2m;
            //decimal wholeRoundedRating = Math.Round(rating, MidpointRounding.AwayFromZero);
            ratingView.AverageRating = rating;

            // [Optional] Make it read-only to keep the user from setting a rating.
            //StarRating.UserInteractionEnabled = false;

            // [Optional] Attach to the rating event to do something with the chosen value.
            ratingView.RatingChosen += (sender, e) => {
                (new UIAlertView("Rated!", e.Rating.ToString() + " stars", null, "Ok")).Show();
            };

            backgroundButton.Add(ratingView);
            View.Add(backgroundButton);
        }

 private static UIView GetBackButton(float viewWidth, float viewHeight)
 {
     UIView view = new UIView(new RectangleF(0, viewHeight - BUTTONHEIGHT, BUTTONWIDTH, BUTTONHEIGHT));
     view.BackgroundColor = UIColor.Clear;
     UIButton button = new UIButton(new RectangleF(0, 0, BUTTONWIDTH, BUTTONHEIGHT));
     button.SetImage(BACKBUTTONIMAGEOUT, UIControlState.Normal);
     button.AdjustsImageWhenDisabled = false;
     button.AdjustsImageWhenHighlighted = false;
     UILabel backTitle = new UILabel(new RectangleF(50, 10, 60, 25));
     backTitle.Text = "返回";
     backTitle.TextColor = UIColor.FromRGB(255, 255, 255);
     backTitle.Font = UIFont.FromName(FONTFAMILY, 18);
     backTitle.TextAlignment = UITextAlignment.Center;
     backTitle.BackgroundColor = UIColor.Clear;
     button.Add(backTitle);
     button.TouchUpInside += (sender, e) =>
     {
         button.SetImage(BACKBUTTONIMAGEOUT, UIControlState.Normal);
         CloseTimePiker();
     };
     button.TouchDown += (sender, e) =>
     {
         button.SetImage(BACKBUTTONIMAGEIN, UIControlState.Normal);
     };
     button.TouchDragInside += (sender, e) =>
     {
         button.SetImage(BACKBUTTONIMAGEOUT, UIControlState.Normal);
     };
     view.Add(button);
     return view;
 }

        public static UIView GetCustomButton(float viewWidth, float viewHeight, CustomAlertType type, string message)
        {
            float width = 300f;
            float height = 60f;
            float x = (viewWidth - width) / 2;
            float y = (viewHeight - height * 1.5f) / 2;

            UIView buttonView = new UIView(new RectangleF (x, y, width, height));
            buttonView.BackgroundColor = UIColor.Clear;

            UIButton alertButton = new UIButton (new RectangleF(0, 0, width, height));
            alertButton.BackgroundColor = UIColor.Clear;
            alertButton.SetImage(ALERTMESSAGEBACK, UIControlState.Normal);
            alertButton.AdjustsImageWhenHighlighted = false;
            alertButton.TouchUpInside += (sender, e) =>
            {
                CloseCustomAlert();
            };
            UIImageView imageView = new UIImageView(new RectangleF(20, 20, 20, 20));
            switch (type)
            {
                case CustomAlertType.Error: imageView.Image = ALERTMESSAGEERROR; break;
                case CustomAlertType.OK:break;
                case CustomAlertType.Warning:imageView.Image = ALERTMESSAGEWARNING; break;
                case CustomAlertType.Wait:imageView.Image = ALERTMESSAGEWAIT; break;
            }
            UILabel messageLable = new UILabel();
            messageLable.Text = message;
            messageLable.Font = UIFont.FromName(FONTFAMILY, 15);
            messageLable.TextColor = UIColor.FromRGB(100, 100, 100);
            messageLable.Frame = new RectangleF(50, 10, width - 80, height - 20);
            messageLable.TextAlignment = UITextAlignment.Left;
            messageLable.BackgroundColor = UIColor.Clear;

            alertButton.Add(imageView);
            alertButton.Add(messageLable);

            buttonView.Add(alertButton);

            return buttonView;
        }

        public static UIView GetAgreementView(float viewWidth, float viewHeight)
        {
            UIView View = new UIView(new RectangleF((viewWidth - 290) / 2, 25, 290, 450));
            View.BackgroundColor = UIColor.Clear;

            UIImageView backImageView = new UIImageView(new RectangleF(0, 0, 290, 450));
            backImageView.Image = AGREEMENTBACKIMAGE;
            backImageView.BackgroundColor = UIColor.Clear;

            UILabel titleLable = new UILabel(new RectangleF(20, 12, 100, 20));
            titleLable.TextAlignment = UITextAlignment.Left;
            titleLable.TextColor = UIColor.FromRGB(200, 20, 30);
            titleLable.Font = UIFont.FromName(FONTFAMILY, 16);
            titleLable.BackgroundColor = UIColor.Clear;
            titleLable.Text = "使用协议";

            UIWebView textView = new UIWebView(new RectangleF(22, 50, 247, 330));
            textView.LoadHtmlString(html, new NSUrl(NSBundle.MainBundle.BundlePath, true));
            textView.BackgroundColor = UIColor.FromRGB(250, 250, 250);

            UIButton button = new UIButton(new RectangleF(15, 385 , 257, 50));
            button.SetImage(AGREEMENTBUTTONOUT, UIControlState.Normal);
            button.AdjustsImageWhenHighlighted = false;
            UILabel buttonTitle = new UILabel(new RectangleF(100, 0, 60, 50));
            buttonTitle.Text = "确定";
            buttonTitle.Font = UIFont.FromName(FONTFAMILY, 18);
            buttonTitle.TextColor = UIColor.FromRGB(255, 255, 255);
            buttonTitle.BackgroundColor = UIColor.Clear;
            buttonTitle.TextAlignment = UITextAlignment.Center;
            button.Add(buttonTitle);
            button.TouchUpInside += (sender, e) =>
            {
                button.SetImage(AGREEMENTBUTTONIN, UIControlState.Normal);
                CloseAgreement();
            };
            button.TouchDown += (sender, e) =>
            {
                button.SetImage(AGREEMENTBUTTONIN, UIControlState.Normal);
            };
            button.TouchDragInside += (sender, e) =>
            {
                button.SetImage(AGREEMENTBUTTONOUT, UIControlState.Normal);
            };

            View.Add(backImageView);
            View.Add(titleLable);
            View.Add(textView);
            View.Add(button);

            return View;
        }

		private void BuildLayout(){
			this.View.BackgroundColor = UIColor.Red;

			//- Add Logo
			UIImage ideabagLogo = UIImage.FromBundle("Login-Logo").ImageWithRenderingMode(UIImageRenderingMode.AlwaysOriginal);
			UIImageView ideabagLogView = new UIImageView (ideabagLogo);
			ideabagLogView.Frame =  new CoreGraphics.CGRect (97, 31, 184, 294);

			this.View.Add (ideabagLogView);

			//- Signup Image
			UIButton btnSignupImage = new UIButton();
			btnSignupImage.Frame = new CoreGraphics.CGRect (194, 313, 150, 50);

			UIImage signupImage = UIImage.FromBundle ("btnSignup-unselected").ImageWithRenderingMode (UIImageRenderingMode.AlwaysOriginal);
			UIImageView signupImageView = new UIImageView (signupImage);
			btnSignupImage.Add (signupImageView);

			this.View.Add (btnSignupImage);

			//- Username text box and background
			UIImageView usernameBackgroundView = new UIImageView(new UIImage (
				new CoreImage.CIImage (UIImage.FromBundle ("login-form-background").ImageWithRenderingMode (UIImageRenderingMode.AlwaysOriginal))
			));
			usernameBackgroundView.Frame = new CoreGraphics.CGRect (0, 366, 380, 50);


			UITextField tfUsername = new UITextField (new CoreGraphics.CGRect (16, 376, 343, 30));
			tfUsername.Font = UIFont.FromName ("Avenir Book", 17);
			tfUsername.Alpha = 1;
			tfUsername.BackgroundColor = UIColor.Clear;
			tfUsername.TextColor = UIColor.White;
			tfUsername.Placeholder = "Email or Username";

			this.View.Add (usernameBackgroundView);
			this.View.Add (tfUsername);

			//- Password text box and background
			UIImageView passwordBackgroundView = new UIImageView(new UIImage (
				new CoreImage.CIImage (UIImage.FromBundle ("login-form-background").ImageWithRenderingMode (UIImageRenderingMode.AlwaysOriginal))
			));
			passwordBackgroundView.Frame = new CoreGraphics.CGRect (0, 418, 380, 50);

			UITextField tfPassword = new UITextField (
				new CoreGraphics.CGRect (16, 428, 343, 30));
			tfPassword.Font = UIFont.FromName ("Avenir Book", 17);
			tfPassword.Alpha = 1;
			tfPassword.BackgroundColor = UIColor.Clear;
			tfPassword.TextColor = UIColor.White;
			tfPassword.Placeholder = "Password";

			this.View.Add (passwordBackgroundView);
			this.View.Add (tfPassword);

			//- Login Button
			UIButton btnLogin = new UIButton(new CoreGraphics.CGRect(59, 479, 256, 49));
			btnLogin.Font = UIFont.FromName ("Avenir Book", 22);
			btnLogin.BackgroundColor = new UIColor (new CoreGraphics.CGColor (255, 255, 255, 0.85f));
			btnLogin.SetTitleShadowColor (UIColor.DarkGray, UIControlState.Normal);
			btnLogin.SetTitleColor (UIColor.Red, UIControlState.Normal);
			btnLogin.SetTitle ("Login", UIControlState.Normal);
			btnLogin.Layer.CornerRadius = 5;
			btnLogin.ClipsToBounds = true;

			this.View.Add (btnLogin);


			//- Forgot password
			UIButton btnForgotPassword = new UIButton(new CoreGraphics.CGRect(94,556, 187, 30));
			btnForgotPassword.Font = UIFont.FromName ("Avenir Book", 19);
			btnForgotPassword.SetTitleColor (UIColor.White, UIControlState.Normal);
			btnForgotPassword.SetTitleShadowColor (UIColor.DarkTextColor, UIControlState.Normal);
			btnForgotPassword.SetTitle ("Forgot Password?", UIControlState.Normal);

			this.View.Add (btnForgotPassword);

			//- Facebook login
			UIButton btnFacebookLogin = new UIButton(new CoreGraphics.CGRect(73, 623, 228, 32));
			btnFacebookLogin.Font = UIFont.FromName ("Avenir Book", 18);
			btnFacebookLogin.SetTitle ("Login with Facebook", UIControlState.Normal);
			btnFacebookLogin.SetTitleColor (UIColor.White, UIControlState.Normal);
			btnFacebookLogin.SetImage (
				UIImage.FromBundle ("Facebook-login").ImageWithRenderingMode (UIImageRenderingMode.AlwaysOriginal),
				UIControlState.Normal);
			this.View.Add (btnFacebookLogin);
		}