C# UIScrollView.ScrollRectToVisible方法代码示例

		public override void ViewDidLoad ()
		{
			base.ViewDidLoad ();
			
			scrollView = new UIScrollView (new RectangleF (0, 0, 320, 480));
			this.View.AddSubview (scrollView);
			//scrollView.Delegate = new ViewControllerForDuplicateEndCapsDelegate ();
			
			
			// add the last image (image4) into the first position
			this.AddImageWithName ("Images/image4.jpg", 0);
			
			// add all of the images to the scroll view
			for (int i = 1; i < 5; i++) {
				this.AddImageWithName (string.Format ("Images/image{0}.jpg", i), i);
			}
			
			// add the first image (image1) into the last position
			this.AddImageWithName ("Images/image1.jpg", 5);
			
			scrollView.PagingEnabled = true;
			scrollView.Bounces = true;
			scrollView.DelaysContentTouches = true;
			scrollView.ShowsHorizontalScrollIndicator = false;
			
			scrollView.ContentSize = new System.Drawing.SizeF (1920, 480);
			scrollView.ScrollRectToVisible (new RectangleF (320, 0, 320, 480), true);
			scrollView.DecelerationEnded += HandleDecelerationEnded;
			
		}

		public override void ViewDidLoad ()
		{
			base.ViewDidLoad ();			
			
			backBtn.SetImage(Graphics.GetImgResource("back"), UIControlState.Normal);
			backBtn.TouchUpInside += HandleBackBtnTouchUpInside;
				
			UpdateTitle();
						
			scrollView = new UIScrollView (new RectangleF (0, this.View.Bounds.Height - h, 320, h));												
			this.View.AddSubview (scrollView);
			
			mapView.AutoresizingMask = UIViewAutoresizing.FlexibleWidth | UIViewAutoresizing.FlexibleHeight;			
			
			foreach (var subView in mapView.Subviews)
			{
				if (subView is UIImageView)
				{
					subView.Frame = new RectangleF(5, 5, subView.Frame.Width, subView.Frame.Height);
					//((UIImageView)subView).Image.SaveToPhotosAlbum(null);
				}
			}
			
			var view = new UIView(new RectangleF(0, 40, 320, 1));
			view.Layer.BackgroundColor = UIColor.LightGray.CGColor;
			this.View.AddSubview(view);
			
			scrollView.PagingEnabled = false;
			scrollView.Bounces = true;
			scrollView.DelaysContentTouches = true;
			scrollView.ShowsHorizontalScrollIndicator = true;
			
			scrollView.BackgroundColor = new UIColor (1, 1, 1, 0.6f);
			scrollView.ScrollRectToVisible (new RectangleF (w, 0, w, h), true);
			scrollView.Scrolled += HandleScrollViewScrolled;

			Initialize ();
			
			if (indicator == null) {
				indicator = new TriangleView (UIColor.Black, UIColor.Black);
				View.AddSubview (indicator);
				UpdatePosition (-100, false);
			}			
		}

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

            AddNightFallGradient();

            AddButtons();

            SetUpMusic();

            NSTimer.CreateRepeatingScheduledTimer(1.0, () => {
                PopulateTimeInformation();
            });

            PopulateTimeInformation ();

            scrollView = new UIScrollView (new RectangleF (scrollViewPositionX, scrollViewPositionY, scrollViewWidth, scrollViewHeight));
            View.AddSubview (scrollView);

            scrollView.PagingEnabled = true;
            scrollView.Bounces = true;
            scrollView.DelaysContentTouches = true;
            scrollView.ShowsHorizontalScrollIndicator = true;

            scrollView.ContentSize = new System.Drawing.SizeF (scrollViewWidth * 4, scrollViewHeight);
            scrollView.ScrollRectToVisible (new RectangleF (0, 0, scrollViewWidth, scrollViewHeight), true);

            scrollView.DecelerationEnded += (object sender, EventArgs e) => {
                UpdatePageScroll(true);
            };

            SetUpLabels();

            pageControl = new UIPageControl();
            pageControl.Center = new PointF(UIScreen.MainScreen.Bounds.Width / 2f, UIScreen.MainScreen.Bounds.Height - 50f);//, UIScreen.MainScreen.Bounds.Height - 150f, 100f, 100f ));
            pageControl.Pages = 4;
            pageControl.CurrentPage = 0;
            if (!UserInterfaceIdiomIsPhone)
                View.AddSubview(pageControl);

            _time.PropertyChanged += (sender, e) => {
                daysUntilXmasLabel.Text = _time.DaysUntil;

                label.Text = _time.DaysUntil;
                label2.Text = _time.HoursUntil;
                label3.Text = _time.MinutesUntil;
                label4.Text = _time.SecondsUntil;
            };
        }

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

            if (Images == null)
            {
                Images = new List<UIImage>();

                foreach (string s in ImagePaths)
                {
                    Images.Add(UIImage.FromBundle(s));
                }
            }

            View.BackgroundColor = UIColor.Black;
            View.AutoresizingMask = UIViewAutoresizing.All;
            totalPage = Images.Count;

            //set View to Full Screen
            WantsFullScreenLayout = true;

            //Add Done button if modal
            if (IsModalView)
            {
                NavigationItem.RightBarButtonItem = new UIBarButtonItem(UIBarButtonSystemItem.Done, dismissImageViewer);
            }
            //Navigationbar and toolbar styling
            //			NavigationController.NavigationBar.TintColor = UIColor.FromRGB(233, 131, 0);
            NavigationController.NavigationBar.Translucent = true;
            NavigationController.Toolbar.TintColor = UIColor.FromRGB(233, 131, 0);
            NavigationController.Toolbar.Translucent = true;
            NavigationController.SetToolbarHidden(false, false);

            //set X of UIScrollView for UIImageView
            float scrollViewOffset = 0;
            imageSizeWidth = (int)View.Frame.Size.Width;
            imageSizeHeight = (int)View.Frame.Size.Height + 64;

            imageScrollView = new UIScrollView(new RectangleF(0, 0, imageSizeWidth, imageSizeHeight));
            imageScrollView.ContentSize = new SizeF(imageSizeWidth * totalPage, imageSizeHeight);
            imageScrollView.PagingEnabled = true;
            imageScrollView.WeakDelegate = this;
            imageScrollView.AutoresizingMask = UIViewAutoresizing.All;

            //add UIImageViews to UIScrollView
            foreach (UIImage img in Images)
            {
                UIImageView iv = new UIImageView(img);
                iv.AutoresizingMask = UIViewAutoresizing.All;
                iv.ContentMode = UIViewContentMode.ScaleAspectFit;
                iv.Frame = new RectangleF(scrollViewOffset, 0, imageSizeWidth, imageSizeHeight);
                iv.UserInteractionEnabled = true;
                imageScrollView.AddSubview(iv);
                scrollViewOffset += imageSizeWidth;
            }

            View.AddSubview(imageScrollView);

            //set ScrollView to Currentpage
            imageScrollView.ScrollRectToVisible(new RectangleF(CurrentPage * imageSizeWidth, 0, imageSizeWidth, imageSizeHeight), false);

            //show Title with currentpage
            Title = "Afbeelding " + (CurrentPage + 1) + " van " + totalPage;

            //Add UIPageControl to toolbar
            pageControl = new UIPageControl(new RectangleF(0, 0, View.Frame.Size.Width, 40));
            pageControl.Pages = Images.Count;
            pageControl.CurrentPage = CurrentPage;
            pageControl.DefersCurrentPageDisplay = true;
            pageControl.HidesForSinglePage = false;

            UIBarButtonItem[] items = new UIBarButtonItem[]{ new UIBarButtonItem(pageControl) };
            ToolbarItems = items;

            // Detect orientation changes using an observer
            orientationObserver = NSNotificationCenter.DefaultCenter.AddObserver("UIDeviceOrientationDidChangeNotification", handleRotation);

            //Add GestureRecognizer to show/hide navigationbar/toolbar/statusbar
            UITapGestureRecognizer gesture = new UITapGestureRecognizer(this, new MonoTouch.ObjCRuntime.Selector("ViewTapSelector"));
            imageScrollView.AddGestureRecognizer(gesture);
        }