UIScrollView Class
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
A UIView that can scroll, pan, and page its children.
[Foundation.Register("UIScrollView", true)]
public class UIScrollView : UIKit.UIView, IDisposable, UIKit.IUIFocusItemScrollableContainertype UIScrollView = class
inherit UIView
interface IUIFocusItemContainer
interface INativeObject
interface IDisposable
interface IUIFocusItemScrollableContainer- Inheritance
- Derived
- Attributes
- Implements
Remarks
The UIScrollView class is a container that provides scrolling, zooming, and panning functionality of its content view. Because the UIScrollView class provides out-of-the-box functionality for scrolling and paging, it is generally used as the basis for UIViews whose content is larger than the UIScrollView's Frame. The need for and range of scrolling is specified by the application developer setting the UIScrollView's ContentSize to a SizeF greater than the UIScrollView's Frame.
The most common ways to use the UIScrollView are to either:
- Add a single large subview, generally with a Frame whose Location is [0,0] and whose SizeF is the same as the UIScrollView's ContentSize; or :
- Arrange multiple subviews within the UIScrollView's ContentSize and use the UIScrollView to scroll between them or, by setting PagingEnabled to
true, to page between them. This is often done in conjunction with a UIPageControl; or : - Subclass UIScrollView and extend it's functionality. In fact, the UIScrollView is the base class of such commonly-used classes as UITextField and UITableView. :
Using A Single Large Subview
The following image, drawn from the "Scroll View" demo in the "iOS Standard Controls" sample, illustrates the simplest use-case: a single large subview (in this case, a UIImageView) whose image size matches the UIScrollView's ContentSize. The ContentOffset of the UIScrollView corresponds to the image pixel showing at the origin of the UIImageView (e.g., PointF [215, 145]). The ContentSize of the UIScrollView defines the scroll limits. When the ContentSize is larger than the UIScrollView's Frame, one gets scrolling behavior. If ContentSize is not set or is set to too small a RectangleF, one doesn't (however, AlwaysBounceVertical and AlwaysBounceHorizontal can be used to allow dragging even in this situation.)
As the following code shows, it's straightforward to create and use a UIScrollView in this manner. The imageView is initialized from a file. The UIScrollView's ContentSize is set to the size of the image (which happens to be 512 x 512 pixels and thus large enough to require scrolling unless zoomed out) and the imageView is added as a subview.
The delegate for the ViewForZoomingInScrollView property allows the UIScrollView to automatically handle pinch-to-zoom gestures:
// create our scroll view
scrollView = new UIScrollView (
new RectangleF (0, 0, this.View.Frame.Width, this.View.Frame.Height - this.NavigationController.NavigationBar.Frame.Height));
this.View.AddSubview (scrollView);
// create our image view
imageView = new UIImageView (UIImage.FromFile ("Images/Icons/512_icon.png"));
scrollView.ContentSize = imageView.Image.Size;
scrollView.MaximumZoomScale = 3f;
scrollView.MinimumZoomScale = .1f;
scrollView.AddSubview (imageView);
scrollView.ViewForZoomingInScrollView += (UIScrollView sv) => { return imageView; };
The UIScrollView tracks the location of the application-user's fingers and updates the UIScrollView's ContentSize and
ZoomScale as they drag, swipe, and make pinch-to-zoom gestures. The UIScrollView draws the
briefly-visible scroll-location indicators, shows the content clipped from its subviews, and animates the scrolling, panning, and zooming transitions. As the gesture or animation proceeds, the UIScrollView adjusts the ContentOffset and ZoomScale appropriately and repeatedly fires the Scrolled event.
Panning and Paging
The next image, from the "Page Control" demo in the iOS Standard Controls sample, illustrates multiple subviews aligned within the boundaries of the UIScrollView's ContentSize. The illustration shows the application in the middle of a swiping animation; portions of both the white and gray subviews are visible.
If PagingEnabled is set to true or if the gesture attempts to scroll to an area outside the UIScrollView's ContentSize, at the end of the gesture the selected subview will "bounce" into alignment with the UIScrollView's Frame.
It is up to the application developer to synchronize with the UIPageControl if one is used. A common way to do this is to handle the UIScrollView's Scrolled event and change the model value that is observed by the UIPageControl (or one can imperatively set the UIPageControl's CurrentPage).
In the paging demo, the Frames of the individual subviews and the ContentSize of the UIScrollView are calculated, aligned, and set using the following code, taken from the "iOS Standard Controls" sample:
// instantiate and add the controllers to our list
controllers.Add (new Controller_1 ());
controllers.Add (new Controller_2 ());
controllers.Add (new Controller_3 ());
for (int i = 0; i < controllers.Count; i++)
{
// set their location and size, each one is moved to the
// right by the width of the previous
RectangleF viewFrame = new RectangleF (
scrlMain.Frame.Width * i,
scrlMain.Frame.Y,
scrlMain.Frame.Width,
scrlMain.Frame.Height);
controllers[i].View.Frame = viewFrame;
// add the view to the scrollview
scrlMain.AddSubview (controllers[i].View);
}
// set our scroll view content size (width = number of pages * scroll view width)
scrlMain.ContentSize = new SizeF (
scrlMain.Frame.Width * controllers.Count, scrlMain.Frame.Height);
Tap-To-Zoom
The "tap-to-zoom" gesture consists of the application user double-tapping the scrolling area. To enable this, the developer needs to create a UITapGestureRecognizer, configure it for two taps, give it a unique Selector, and add it to the UIScrollView. Then, the developer has to implement a method with an ExportAttribute configured to the Selector identifier.
The following code from the "Implement Tap-To-Zoom Recipe" shows the essential steps:
UITapGestureRecognizer doubletap = new UITapGestureRecognizer();
doubletap.NumberOfTapsRequired = 2; // double tap
doubletap.AddTarget (this, new MonoTouch.ObjCRuntime.Selector("DoubleTapSelector"));
scrollView.AddGestureRecognizer(doubletap); // detect when the scrollView is double-tapped
//...etc...
[MonoTouch.Foundation.Export("DoubleTapSelector")]
public void OnDoubleTap (UIGestureRecognizer sender) {
if (scrollView.ZoomScale >= 1)
scrollView.SetZoomScale(0.25f, true);
else
scrollView.SetZoomScale(2f, true);
}
Touch Delays Associated with UIScrollView
Because scrolling and zooming gestures can begin anywhere on the screen, the UIScrollView intercepts touch events and waits briefly to see if the application user is making a scrolling or zooming gesture. This introduces a small delay but the default behavior can be customized by overriding the UIScrollView's TouchesShouldBegin(NSSet, UIEvent, UIView) and TouchesShouldCancelInContentView(UIView) methods.
Subview Frames
Although generally the Frames of the content UIViews are aligned with the extent of the UIScrollView's ContentSize and each other, this is not a requirement. Setting the Frame so that it extends beyond the boundaries of the ContentSize may make drawing geometry easier or more consistent. If, by misaligning subviews, one displays an area within the ContentSize of the UIScrollView that does not contain a UIView, gestures for scrolling and zooming occurring in the blank area will not work: the application must have an underlying UIView to get the expected behavior.
Some domains, such as maps and gameboards, may seem to suggest a design in which a UIScrollView has a large number of tiled subviews. However, all subviews -- whether visible or not -- are rendered and this can be resource- and processor-intensive. In such cases, it is the application developer's responsibility to add or remove subviews appropriately.
Event Sequence
The following illustration shows the user actions and resulting UIScrollView event sequence associated with a dragging or swiping gesture:
- The user touches the screen;:
- The user begins dragging;:
- The DraggingStarted event is raised;:
- As long as the user continues dragging...:
- The Scrolled event is raised repeatedly;:
- The user raises their finger...:
- The WillEndDragging event is raised;:
- The DraggingEnded event is raised;:
- The DecelerationStarted event is raised;:
- As long as the scrolling animation continues...:
- The Scrolled event is raised repeatedly;:
- The E:UIKit.UIScroll.DevelerationEnded event is raised.:
The following illustration shows the user actions and resulting UIScrollView event sequence associated with a pinch-to-zoom gesture:
- The user touches the screen with two fingers;:
- The user begins the pinch-to-zoom gesture;:
- The ZoomingStarted event is raised;:
- As long as the user continues pinching...:
- The Scrolled event is raised repeatedly because the zooming is effecting the origin of the displayed content;:
- The DidZoom event is raised repeatedly;:
- The user raises their fingers...:
- The ZoomingEnded event is raised;:
- The Scrolled event is raised as the content view bounces into alignment;:
State Preservation and Restoration
In iOS 6 or later, if the RestorationIdentifier property is set, on restoration the UIScrollView's ZoomScale, ContentOffset, and ContentInset properties will be restored.
Event-handling
The Xamarin API supports two styles of event notification: the Objective-C style that uses a delegate class or the C# style using event notifications.
The C# style allows the user to add or remove event handlers at runtime by assigning to the events of properties of this class. Event handlers can be anyone of a method, an anonymous methods or a lambda expression. Using the C# style events or properties will override any manual settings to the Objective-C Delegate or WeakDelegate settings.
The Objective-C style requires the user to create a new class derived from UIScrollViewDelegate class and assign it to the Delegate property. Alternatively, for low-level control, by creating a class derived from NSObject which has every entry point properly decorated with an [Export] attribute (see ExportAttribute). The instance of this object can then be assigned to the WeakDelegate property.
Constructors
| UIScrollView() |
Default constructor that initializes a new instance of this class with no parameters. |
| UIScrollView(CGRect) |
Initializes the UIScrollView with the specified frame. |
| UIScrollView(IntPtr) |
A constructor used when creating managed representations of unmanaged objects; Called by the runtime. |
| UIScrollView(NSCoder) |
A constructor that initializes the object from the data stored in the unarchiver object. |
| UIScrollView(NSObjectFlag) |
Constructor to call on derived classes to skip initialization and merely allocate the object. |
Properties
| AccessibilityActivationPoint |
The screen coordinates for the accessibility element. (Inherited from UIView) |
| AccessibilityAssistiveTechnologyFocusedIdentifiers | (Inherited from UIResponder) |
| AccessibilityAttributedHint |
An attributed string providing a brief description of the behavior of the accessibility element. (Inherited from UIView) |
| AccessibilityAttributedLabel |
A brief attributed string describing the purpose of the UIView. (Inherited from UIView) |
| AccessibilityAttributedValue |
An attributed string holding the value of the UIView, when it is different than the AccessibilityAttributedLabel. (Inherited from UIView) |
| AccessibilityCustomActions |
Allows methods to be added to AccessibilityCustomActions as accessibility-supporting supplementary actions. (Inherited from UIResponder) |
| AccessibilityDragSourceDescriptors | (Inherited from UIResponder) |
| AccessibilityDropPointDescriptors | (Inherited from UIResponder) |
| AccessibilityElementsHidden |
Whether the view's accessibility elements are visible. (Inherited from UIView) |
| AccessibilityFrame |
The Frame of the accessibility element, in screen coordinates. (Inherited from UIView) |
| AccessibilityHint |
A brief description of the action performed by the accessibility element. (Inherited from UIView) |
| AccessibilityIdentifier |
Uniquely identifies |
| AccessibilityIgnoresInvertColors |
Gets or sets whether the UIView will invert its colors in response to such an accessibility request. (Inherited from UIView) |
| AccessibilityLabel |
A localized identifier for the accessibility element. (Inherited from UIView) |
| AccessibilityLanguage |
The BCP 47 language tag of the language used to speak the accessibility element's components. (Inherited from UIView) |
| AccessibilityNavigationStyle |
Gets or sets the navigation style. (Inherited from UIView) |
| AccessibilityPath |
Allows the accessibility element to be non-rectangular. (Inherited from UIView) |
| AccessibilityTraits |
A bitmask of the UIAccessibilityTraits of |
| AccessibilityValue |
The value of the accessibility element. (Inherited from UIView) |
| AccessibilityViewIsModal |
Whether Voice Over should ignore sibling elements. (Inherited from UIView) |
| AdjustedContentInset |
Gets the insets that consider the content insets and the scroll view safe area. |
| AlignmentRectInsets |
Adjustments to the Frame for use with Auto Layout. (Inherited from UIView) |
| Alpha |
Controls the transparency (alpha) value for the view. (Inherited from UIView) |
| AlwaysBounceHorizontal |
If set to |
| AlwaysBounceVertical |
If set to |
| Appearance |
Strongly-typed property that returns the UIAppearance class for this class. |
| AutoresizingMask |
A bitmask that specifies how the receiver should resize itself when its super-view's bounds change. (Inherited from UIView) |
| AutosizesSubviews |
Specifies whether the receiver should automatically resize its Subviews when the receiver's Bounds change. (Inherited from UIView) |
| BackgroundColor |
Sets the background color of the UIView. (Inherited from UIView) |
| BottomAnchor |
The NSLayoutYAxisAnchor that defines the bottom of this UIView. (Inherited from UIView) |
| Bounces |
If set to |
| BouncesZoom |
If set to |
| Bounds |
The usable frame of the view, specified using the view's own coordinate system. (Inherited from UIView) |
| CanBecomeFirstResponder |
Determines whether this UIREsponder is willing to become the first responder. (Inherited from UIResponder) |
| CanBecomeFocused |
Whether this UIView can become the focused view. (Inherited from UIView) |
| CanCancelContentTouches |
If set to |
| CanResignFirstResponder |
Determines whether this UIResponder is willing to give up its first responder status. (Inherited from UIResponder) |
| Center |
The center of the view, in the container coordinate space. (Inherited from UIView) |
| CenterXAnchor |
The NSLayoutXAxisAnchor that defines the X-axis center of this UIView. (Inherited from UIView) |
| CenterYAnchor |
The NSLayoutYAxisAnchor that defines the Y-axis center of this UIView. (Inherited from UIView) |
| Class | (Inherited from NSObject) |
| ClassHandle |
The handle for this class. |
| ClearsContextBeforeDrawing |
Specifies that the drawing buffer be erased prior to calling DrawRect(CGRect, UIViewPrintFormatter) (Inherited from UIView) |
| ClipsToBounds |
Specifies whether the Subviews are confined to the Bounds of the receiver. (Inherited from UIView) |
| CollisionBoundingPath |
Gets the UIBezierPath to be used for collision detection. (Inherited from UIView) |
| CollisionBoundsType |
Gets the UIDynamicItemCollisionBoundsType describing the type of bounds used for collision detected. (Inherited from UIView) |
| Constraints |
The constraints used by Auto Layout on this UIView. (Inherited from UIView) |
| ContentInset |
The distance, in points, that the content of the scroll view is inset inside of the scroll view. |
| ContentInsetAdjustmentBehavior |
Gets or sets a value that controls when safe area insets are added to content insets. |
| ContentLayoutGuide |
Gets the scroll view's content layout guide. |
| ContentMode |
Controls how the cached bitmap of a view must be rendered when the view's bounds change. (Inherited from UIView) |
| ContentOffset |
The offset for the origin of the content inside of a scroll view, relative to the origin of the scroll view itself. |
| ContentScaleFactor |
The number of device pixels per logical coordinate point. (Inherited from UIView) |
| ContentSize |
The size of the content view, as measured in points. |
| ContentStretch |
Developers should not use this deprecated property. Developers should use 'CreateResizableImage' instead. (Inherited from UIView) |
| CoordinateSpace |
Returns the coordinate space implemenation for the scrollview. |
| DebugDescription |
A developer-meaningful description of this object. (Inherited from NSObject) |
| Decelerating |
If this property returns |
| DecelerationRate |
This property returns a value that represents the deceleration rate once the user lifts their finger. There are two values, DecelerationRateFast and DecelerationRateNormal, that can serve as reference points for deceleration rates. |
| DecelerationRateFast |
Represents the value associated with the constant UIScrollViewDecelerationRateFast |
| DecelerationRateNormal |
Represents the value associated with the constant UIScrollViewDecelerationRateNormal |
| DelaysContentTouches |
Specifies whether the UIScrollView can delay input to attempt to determine if a scrolling gesture has been made |
| Delegate |
An instance of the UIKit.IUIScrollViewDelegate model class which acts as the class delegate. |
| Description |
Description of the object, the Objective-C version of ToString. (Inherited from NSObject) |
| DirectionalLayoutMargins |
Gets or sets the layout margins for laying out content that respects the current language direction. (Inherited from UIView) |
| DirectionalLockEnabled |
If |
| DirectionalPressGestureRecognizer |
Developers should not use this deprecated property. Configuring the 'PanGestureRecognizer' for indirect scrolling automatically supports directional presses now, so this property is no longer useful. |
| Dragging |
Returns |
| EffectiveUserInterfaceLayoutDirection |
Gets the layout direction for arranging the view's contents. (Inherited from UIView) |
| ExclusiveTouch |
Restricts the event delivery to this view. (Inherited from UIView) |
| FirstBaselineAnchor |
A NSLayoutYAxisAnchor that defines a constraint based on the baseline of the first line of text in this UIView. (Inherited from UIView) |
| Focused |
Whether the UIView is the focused view. (Inherited from UIView) |
| FocusItemContainer |
Gets the focus container that provides spatial information to child focus items. (Inherited from UIView) |
| Frame |
Coordinates of the view relative to its container. (Inherited from UIView) |
| FrameLayoutGuide |
Gets the scroll view's content layout guide. |
| GestureRecognizers |
The array of UIGestureRecognizers for this UIView. (Inherited from UIView) |
| Handle |
Handle (pointer) to the unmanaged object representation. (Inherited from NSObject) |
| HasAmbiguousLayout |
Returns |
| HeightAnchor |
The NSLayoutDimension that defines the height of this UIView. (Inherited from UIView) |
| Hidden |
Specifies whether the UIView displays or not. (Inherited from UIView) |
| IndexDisplayMode |
Gets or sets a value that controls whether the index is automatically displayed or always hidden while the user scrolls. |
| IndicatorStyle |
The style of the scroll indicators. |
| InputAccessoryView |
Custom view that can be attached when the object becomes the first responder. (Inherited from UIResponder) |
| InputAccessoryViewController |
Gets the custom accessory UIInputViewController to display when |
| InputAssistantItem |
Gets the assistant that will be used to configure the shortcut bar. (Inherited from UIResponder) |
| InputView |
Custom view to display when the object becomes the first responder. Read-only. (Inherited from UIResponder) |
| InputViewController |
Gets the custom UIInputViewController to display when |
| InsetsLayoutMarginsFromSafeArea |
Gets or sets a Boolean value that controls whether margins are adjusted to always fall within the safe area. Default is |
| Interactions |
Gets or sets the current set of interactions. (Inherited from UIView) |
| IntrinsicContentSize |
The size of the intrinsic content of the UIView. (Inherited from UIView) |
| IsAccessibilityElement |
Whether |
| IsDirectBinding | (Inherited from NSObject) |
| IsFirstResponder |
Returns whether this UIResponder is the First Responder. (Inherited from UIResponder) |
| IsProxy | (Inherited from NSObject) |
| KeyboardDismissMode |
The manner in which the keyboard is dismissed at the start of dragging. |
| KeyCommands |
The key commands that should trigger action on this UIResponder. Read-only. (Inherited from UIResponder) |
| LastBaselineAnchor |
A NSLayoutYAxisAnchor that defines a constraint based on the baseline of the first line of text in this UIView. (Inherited from UIView) |
| Layer |
The Core Animation layer used for rendering. (Inherited from UIView) |
| LayoutGuides |
The UILayoutGuide objects defined for this UIView. (Inherited from UIView) |
| LayoutMargins |
Lays out margins. (Inherited from UIView) |
| LayoutMarginsGuide |
Defines the margin attributes. (Inherited from UIView) |
| LeadingAnchor |
The NSLayoutXAxisAnchor that defines the leading edge of this UIView. (Inherited from UIView) |
| LeftAnchor |
The NSLayoutXAxisAnchor that defines the left edge of this UIView. (Inherited from UIView) |
| MaskView |
Returns mask view. (Inherited from UIView) |
| MaximumZoomScale |
The value of the maximum scale factor that can be applied to the content view. |
| MinimumZoomScale |
The value of the minimum scale factor that can be applied to the content view. |
| MotionEffects |
Current set of motion effects on this view. (Inherited from UIView) |
| MultipleTouchEnabled |
Controls whether the UIView can handle multitouch events. (Inherited from UIView) |
| NextResponder |
The next responder on the response chain (Inherited from UIResponder) |
| Opaque |
Determines whether the view is opaque or not. (Inherited from UIView) |
| PagingEnabled |
If |
| PanGestureRecognizer |
The gesture recognizer for pan gestures. Read-only. |
| ParentFocusEnvironment |
Gets the parent focus environment. (Inherited from UIView) |
| PasteConfiguration |
The UIPasteConfiguration supported by |
| PinchGestureRecognizer |
The gesture recognizer for pinch gestures. Read-only. |
| PreferredFocusedView |
Returns the UIView that should actually be focused. (Inherited from UIView) |
| PreferredFocusEnvironments |
An array of IUIFocusEnvironments that are recursively searched by the system to find the default focused view. (Inherited from UIView) |
| PreservesSuperviewLayoutMargins |
Preserves layout margins for superview. (Inherited from UIView) |
| ReadableContentGuide |
An area that can be read by the user with minimal head moving. (Inherited from UIView) |
| RefreshControl |
If not |
| RestorationIdentifier |
If not |
| RetainCount |
Returns the current Objective-C retain count for the object. (Inherited from NSObject) |
| RightAnchor |
The NSLayoutXAxisAnchor that defines the right edge of this UIView. (Inherited from UIView) |
| SafeAreaInsets |
Gets the insets that place the content so that navigation and tab bars, toolbars, and other content does not obscure the view of the content. (Inherited from UIView) |
| SafeAreaLayoutGuide |
Gets the layout guide for placing the content so that navigation and tab bars, toolbars, and other content does not obscure the view of the content. (Inherited from UIView) |
| ScrollEnabled |
If set to |
| ScrollIndicatorInsets |
How far inset the scroll indicators are from the scroll view's edges. |
| ScrollsToTop |
If |
| Self | (Inherited from NSObject) |
| SemanticContentAttribute |
Specifies whether the UIView should maintain its layout or flip when used with a right-to-left layout. (Inherited from UIView) |
| ShouldGroupAccessibilityChildren |
Whether the UIView's children should be grouped for the purposes of voice-over, regardless of their position on the screen. (Inherited from UIView) |
| ShouldScrollToTop |
Delegate invoked by the object to get a value. |
| ShowsHorizontalScrollIndicator |
If |
| ShowsVerticalScrollIndicator |
If |
| Subviews |
An array of UIViews that are contained within |
| Superclass | (Inherited from NSObject) |
| SuperHandle |
Handle used to represent the methods in the base class for this NSObject. (Inherited from NSObject) |
| Superview |
The UIView, if any, that contains |
| Tag |
An integer that can be used to identify a specific UIView instance. (Inherited from UIView) |
| TextInputContextIdentifier |
An identifier indicating that this UIResponder should preserve its text input mode information. Read-only. (Inherited from UIResponder) |
| TextInputMode |
The text input mode for this UIResponder. Read-only. (Inherited from UIResponder) |
| TintAdjustmentMode |
The tint adjustment applied to this UIView or one of its parent views. (Inherited from UIView) |
| TintColor |
A highlight color which should be used to indicate interactive controls. (Inherited from UIView) |
| TopAnchor |
The NSLayoutYAxisAnchor that defines the top of this UIView. (Inherited from UIView) |
| Tracking |
Returns |
| TrailingAnchor |
The NSLayoutXAxisAnchor that defines the leading edge of this UIView. (Inherited from UIView) |
| TraitCollection |
Returns a trait collection. (Inherited from UIView) |
| Transform |
The transform of the UIView, relative to the center of its bounds. (Inherited from UIView) |
| TranslatesAutoresizingMaskIntoConstraints |
Specifies whether the autoresizing mask should be translated into constraints for Auto Layout. (Inherited from UIView) |
| UndoManager |
The nearest shared NSUndoManager in the responder chain. Read-only. (Inherited from UIResponder) |
| UserActivity |
Action that encapsulates a user activity that is supported by this responder. (Inherited from UIResponder) |
| UserInteractionEnabled |
Determines whether input events are processed by this view. (Inherited from UIView) |
| ViewForBaselineLayout |
Returns the UIView upon which baseline constraints should be applied. (Inherited from UIView) |
| ViewForFirstBaselineLayout |
When overridden, allows the app dev to return a subview as the basis for baseline constraints. (Inherited from UIView) |
| ViewForLastBaselineLayout |
When overridden, allows the app dev to return a subview as the basis for baseline constraints. (Inherited from UIView) |
| ViewForZoomingInScrollView |
Delegate invoked by the object to get a value. |
| ViewPrintFormatter |
Returns a UIViewPrintFormatter appropriate for the UIView. (Inherited from UIView) |
| VisibleSize |
Gets the visible size of the scrollview container. |
| WeakDelegate |
An object that can respond to the delegate protocol for this type |
| WidthAnchor |
The NSLayoutDimension that defines the horizontal extent of this UIView. (Inherited from UIView) |
| Window | (Inherited from UIView) |
| Zone | (Inherited from NSObject) |
| ZoomBouncing |
Returns |
| Zooming |
Returns |
| ZoomScale |
The scale factor that is being applied to the content of a scroll view. |
Methods
| AccessibilityActivate() |
Activates accessibility for this UIView, returning |
| AccessibilityDecrement() |
Tells the accessibility element to decrement the value of its content. (Inherited from UIResponder) |
| AccessibilityElementDidBecomeFocused() |
Indicates that an assistive technology has set its focus to |
| AccessibilityElementDidLoseFocus() |
Indicates that an assistive technology has changed its focus from |
| AccessibilityElementIsFocused() |
Indicates whether an assistive technology is focused on |
| AccessibilityIncrement() |
Tells the accessibility element to increment the value of its content. (Inherited from UIResponder) |
| AccessibilityPerformEscape() |
Tells the accessibility system to dismiss a modal popover or hierarchically-displayed element. (Inherited from UIResponder) |
| AccessibilityPerformMagicTap() |
Toggles the application-defined "most important state" of the app. (Inherited from UIResponder) |
| AccessibilityScroll(UIAccessibilityScrollDirection) |
When overridden, allows the accessibility system to perform scrolling. (Inherited from UIResponder) |
| ActionForLayer(CALayer, String) |
Retrieves the default CAAction identified by that targets . (Inherited from UIView) |
| Add(UIView) |
This is an alias for AddSubview(UIView), but uses the Add pattern as it allows C# 3.0 constructs to add subviews after creating the object. (Inherited from UIView) |
| AddConstraint(NSLayoutConstraint) |
Adds a constraint to the layout of the receiving view or its subviews. (Inherited from UIView) |
| AddConstraints(NSLayoutConstraint[]) |
Adds multiple constraints to the layout of the receiving view or its subviews. (Inherited from UIView) |
| AddGestureRecognizer(UIGestureRecognizer) |
Adds a gesture recognizer to this view. (Inherited from UIView) |
| AddInteraction(IUIInteraction) |
Adds the interaction to the view. (Inherited from UIView) |
| AddLayoutGuide(UILayoutGuide) |
Adds the specified |
| AddMotionEffect(UIMotionEffect) |
Adds the specified motion effect to the view. (Inherited from UIView) |
| AddObserver(NSObject, NSString, NSKeyValueObservingOptions, IntPtr) |
Registers an object for being observed externally (using NSString keyPath). Observed changes are dispatched to the observer’s object ObserveValue(NSString, NSObject, NSDictionary, IntPtr) method. (Inherited from NSObject) |
| AddObserver(NSObject, String, NSKeyValueObservingOptions, IntPtr) |
Registers an object for being observed externally (using string keyPath). Observed changes are dispatched to the observer’s object ObserveValue(NSString, NSObject, NSDictionary, IntPtr) method. (Inherited from NSObject) |
| AddObserver(NSString, NSKeyValueObservingOptions, Action<NSObservedChange>) |
Registers an object for being observed externally using an arbitrary method. (Inherited from NSObject) |
| AddObserver(String, NSKeyValueObservingOptions, Action<NSObservedChange>) |
Registers an object for being observed externally using an arbitrary method. (Inherited from NSObject) |
| AddSubview(UIView) |
Adds the specified view as a subview of this view. (Inherited from UIView) |
| AddSubviews(UIView[]) |
Convenience routine to add various views to a UIView. (Inherited from UIView) |
| AdjustedContentInsetDidChange() |
Method that is called when AdjustedContentInset changes. |
| AlignmentRectForFrame(CGRect) |
Returns a customized alignment rectangle for Auto Layout. (Inherited from UIView) |
| AppearanceWhenContainedIn(Type[]) |
Returns a strongly typed UIAppearance for instances of this class when the view is hosted in the specified hierarchy. |
| AwakeFromNib() |
Called after the object has been loaded from the nib file. Overriders must call base.AwakeFromNib(). (Inherited from NSObject) |
| BecomeFirstResponder() |
Request the object to become the first responder. (Inherited from UIResponder) |
| BeginInvokeOnMainThread(Action) | (Inherited from NSObject) |
| BeginInvokeOnMainThread(Selector, NSObject) |
Invokes asynchrously the specified code on the main UI thread. (Inherited from NSObject) |
| Bind(NSString, NSObject, String, NSDictionary) | (Inherited from NSObject) |
| Bind(String, NSObject, String, NSDictionary) |
Obsolete.
(Inherited from NSObject)
|
| BindingInfo(String) |
Obsolete.
(Inherited from NSObject)
|
| BindingOptionDescriptions(String) |
Obsolete.
(Inherited from NSObject)
|
| BindingValueClass(String) |
Obsolete.
(Inherited from NSObject)
|
| BringSubviewToFront(UIView) |
Moves the specified subview so that it appears in front of other Subviews. (Inherited from UIView) |
| CanPaste(NSItemProvider[]) |
Gets whether |
| CanPerform(Selector, NSObject) |
Determines if this UIResponder can perform the specified action. Typically used to probe for editing commands. (Inherited from UIResponder) |
| Capture(Boolean) |
Performs a screen-capture of the UIView. (Inherited from UIView) |
| CommitEditing() | (Inherited from NSObject) |
| CommitEditing(NSObject, Selector, IntPtr) | (Inherited from NSObject) |
| ConformsToProtocol(IntPtr) |
Invoked to determine if this object implements the specified protocol. (Inherited from NSObject) |
| ContentCompressionResistancePriority(UILayoutConstraintAxis) |
Returns the resistance of an axis to compression below its intrinsic size. (Inherited from UIView) |
| ContentHuggingPriority(UILayoutConstraintAxis) |
Returns the resistance of an axis to expansion larger than its intrinsic size. (Inherited from UIView) |
| ConvertPointFromCoordinateSpace(CGPoint, IUICoordinateSpace) |
Converts from the coordinate system to |
| ConvertPointFromView(CGPoint, UIView) |
Converts from the coordinate system of to |
| ConvertPointToCoordinateSpace(CGPoint, IUICoordinateSpace) |
Converts from |
| ConvertPointToView(CGPoint, UIView) |
Converts from |
| ConvertRectFromCoordinateSpace(CGRect, IUICoordinateSpace) |
Converts from the coordinate system of to that of |
| ConvertRectFromView(CGRect, UIView) |
Converts from the coordinate system used in to that of |
| ConvertRectToCoordinateSpace(CGRect, IUICoordinateSpace) |
Converts from |
| ConvertRectToView(CGRect, UIView) |
Converts from |
| Copy() |
Performs a copy of the underlying Objective-C object. (Inherited from NSObject) |
| Copy(NSObject) |
Indicates a "Copy" editing operation. (Inherited from UIResponder) |
| Cut(NSObject) |
Indicates a "Cut" editing operation. (Inherited from UIResponder) |
| DangerousAutorelease() | (Inherited from NSObject) |
| DangerousRelease() | (Inherited from NSObject) |
| DangerousRetain() | (Inherited from NSObject) |
| DecodeRestorableState(NSCoder) |
Application developers can override this method to support state restoration. (Inherited from UIView) |
| Delete(NSObject) |
Indicates a "Delete" editing operation. (Inherited from UIResponder) |
| DidChange(NSKeyValueChange, NSIndexSet, NSString) |
Indicates a change occurred to the indexes for a to-many relationship. (Inherited from NSObject) |
| DidChange(NSString, NSKeyValueSetMutationKind, NSSet) | (Inherited from NSObject) |
| DidChangeValue(String) |
Indicates that a change occurred on the specified key. (Inherited from NSObject) |
| DidHintFocusMovement(UIFocusMovementHint) |
Called to tell the focused item in the UIView that the focus may change. (Inherited from UIView) |
| DidUpdateFocus(UIFocusUpdateContext, UIFocusAnimationCoordinator) |
Called after the UIView has either lost or received focus. (See also ShouldUpdateFocus(UIFocusUpdateContext).) (Inherited from UIView) |
| DisplayLayer(CALayer) | (Inherited from UIView) |
| Dispose() |
Releases the resources used by the NSObject object. (Inherited from NSObject) |
| Dispose(Boolean) |
Releases the resources used by the UIScrollView object. |
| DoesNotRecognizeSelector(Selector) |
Indicates that this object does not recognize the specified selector. (Inherited from NSObject) |
| Draw(CGRect) |
Draws the view within the passed-in rectangle. (Inherited from UIView) |
| DrawLayer(CALayer, CGContext) | (Inherited from UIView) |
| DrawRect(CGRect, UIViewPrintFormatter) |
Developers should override this method if their appr draws the UIView contents. (Inherited from UIView) |
| DrawViewHierarchy(CGRect, Boolean) |
Renders the complete view hierarchy visible on screen. (Inherited from UIView) |
| EncodeRestorableState(NSCoder) |
Application developers can override this method to store state associated with the view. (Inherited from UIView) |
| EncodeTo(NSCoder) |
Encodes the state of the object on the provided encoder (Inherited from UIView) |
| Equals(NSObject) | (Inherited from NSObject) |
| Equals(Object) | (Inherited from NSObject) |
| ExchangeSubview(nint, nint) |
This method exchanges the indices of two UIViews within the Subviews array. (Inherited from UIView) |
| ExerciseAmbiguityInLayout() |
Randomly changes the Frame within an ambiguous set of Auto Layout constraints. (Inherited from UIView) |
| ExposedBindings() | (Inherited from NSObject) |
| FlashScrollIndicators() |
This method will flash the scroll indicators for a short time. |
| FrameForAlignmentRect(CGRect) |
Returns the frame resulting from applying the |
| GestureRecognizerShouldBegin(UIGestureRecognizer) |
Determines if the specified gesture recognizers should be allowed to track touch events. (Inherited from UIView) |
| GetAppearance(UITraitCollection, Type[]) |
Returns an appearance proxy for the specified |
| GetAppearance(UITraitCollection) |
Returns an appearance proxy for the specified |
| GetAppearance<T>() |
Obtains the appearance proxy UIScrollView.UIScrollViewAppearance for the subclass of UIScrollView. |
| GetAppearance<T>(UITraitCollection, Type[]) |
Obtains the appearance proxy UIScrollView.UIScrollViewAppearance for the subclass of UIScrollView that has the specified trait collection when the view is hosted in the specified hierarchy. |
| GetAppearance<T>(UITraitCollection) |
Obtains the appearance proxy UIScrollView.UIScrollViewAppearance for the subclass of UIScrollView. |
| GetBindingInfo(NSString) | (Inherited from NSObject) |
| GetBindingOptionDescriptions(NSString) | (Inherited from NSObject) |
| GetBindingValueClass(NSString) | (Inherited from NSObject) |
| GetConstraintsAffectingLayout(UILayoutConstraintAxis) |
Returns the array of NSLayoutConstraint that are affecting the layout of the UIView along the specified |
| GetDictionaryOfValuesFromKeys(NSString[]) |
Retrieves the values of the specified keys. (Inherited from NSObject) |
| GetEnumerator() |
Returns an enumerator that lists all of the subviews in this view (Inherited from UIView) |
| GetFocusItems(CGRect) |
Returns a list of all the child focus items within the specified rectangle. |
| GetHashCode() |
Generates a hash code for the current instance. (Inherited from NSObject) |
| GetMethodForSelector(Selector) | (Inherited from NSObject) |
| GetNativeField(String) |
Obsolete.
(Inherited from NSObject)
|
| GetNativeHash() | (Inherited from NSObject) |
| GetTargetForAction(Selector, NSObject) |
Returns the object that responds to an action. (Inherited from UIResponder) |
| HitTest(CGPoint, UIEvent) |
The frontmost visible, interaction-enabled UIView containing . (Inherited from UIView) |
| Init() | (Inherited from NSObject) |
| InitializeHandle(IntPtr, String) | (Inherited from NSObject) |
| InitializeHandle(IntPtr) | (Inherited from NSObject) |
| InsertSubview(UIView, nint) |
Inserts the specified subview at the specified location as a subview of this view. (Inherited from UIView) |
| InsertSubviewAbove(UIView, UIView) |
Inserts the specified view above the siblingSubvie in the view hierarchy (Inherited from UIView) |
| InsertSubviewBelow(UIView, UIView) |
Inserts the specified view below the |
| InvalidateIntrinsicContentSize() |
Alerts the Auto Layout system that the intrinsic value of the UIView has changed. (Inherited from UIView) |
| Invoke(Action, Double) | (Inherited from NSObject) |
| Invoke(Action, TimeSpan) | (Inherited from NSObject) |
| InvokeOnMainThread(Action) | (Inherited from NSObject) |
| InvokeOnMainThread(Selector, NSObject) |
Invokes synchrously the specified code on the main UI thread. (Inherited from NSObject) |
| IsDescendantOfView(UIView) |
Returns |
| IsEqual(NSObject) | (Inherited from NSObject) |
| IsKindOfClass(Class) | (Inherited from NSObject) |
| IsMemberOfClass(Class) | (Inherited from NSObject) |
| LayoutIfNeeded() |
Lays out the subviews if needed. (Inherited from UIView) |
| LayoutMarginsDidChange() |
Lays out changed subviews (Inherited from UIView) |
| LayoutSublayersOfLayer(CALayer) |
Called to indicate that the object's Bounds has changed. (Inherited from UIView) |
| LayoutSubviews() |
Lays out subviews. (Inherited from UIView) |
| MakeTextWritingDirectionLeftToRight(NSObject) |
Sets the direction in which text is written to be left-to-right. (Inherited from UIResponder) |
| MakeTextWritingDirectionRightToLeft(NSObject) |
Sets the direction in which text is written to be right-to-left. (Inherited from UIResponder) |
| MarkDirty() |
Promotes a regular peer object (IsDirectBinding is true) into a toggleref object. (Inherited from NSObject) |
| MotionBegan(UIEventSubtype, UIEvent) |
Method invoked when a motion (a shake) has started. (Inherited from UIResponder) |
| MotionCancelled(UIEventSubtype, UIEvent) |
Method invoked if the operating system cancels a motion (shake) event. (Inherited from UIResponder) |
| MotionEnded(UIEventSubtype, UIEvent) |
Method invoked when a motion (shake) has finished. (Inherited from UIResponder) |
| MovedToSuperview() |
Indicates the UIView has had its Superview property changed. (Inherited from UIView) |
| MovedToWindow() |
Indicates the UIView has had its Window property changed. (Inherited from UIView) |
| MutableCopy() |
Creates a mutable copy of the specified NSObject. (Inherited from NSObject) |
| NeedsUpdateConstraints() |
Indicates that the Auto Layout constraints of the UIView need updating. (Inherited from UIView) |
| ObjectDidEndEditing(NSObject) | (Inherited from NSObject) |
| ObserveValue(NSString, NSObject, NSDictionary, IntPtr) |
Indicates that the value at the specified keyPath relative to this object has changed. (Inherited from NSObject) |
| Paste(NSItemProvider[]) |
Called to perform a paste operation from . (Inherited from UIResponder) |
| Paste(NSObject) |
Indicates a "Paste" editing operation. (Inherited from UIResponder) |
| PerformSelector(Selector, NSObject, Double, NSString[]) | (Inherited from NSObject) |
| PerformSelector(Selector, NSObject, Double) |
Invokes the selector on the current instance and if the |
| PerformSelector(Selector, NSObject, NSObject) | (Inherited from NSObject) |
| PerformSelector(Selector, NSObject) | (Inherited from NSObject) |
| PerformSelector(Selector, NSThread, NSObject, Boolean, NSString[]) | (Inherited from NSObject) |
| PerformSelector(Selector, NSThread, NSObject, Boolean) | (Inherited from NSObject) |
| PerformSelector(Selector) | (Inherited from NSObject) |
| PointInside(CGPoint, UIEvent) |
Whether is inside |
| PrepareForInterfaceBuilder() | (Inherited from NSObject) |
| PressesBegan(NSSet<UIPress>, UIPressesEvent) |
Indicates that a physical button has been pressed on a remote or game controller. (Inherited from UIResponder) |
| PressesCancelled(NSSet<UIPress>, UIPressesEvent) |
Indicates a physical button-press event has been cancelled due to a system event. (Inherited from UIResponder) |
| PressesChanged(NSSet<UIPress>, UIPressesEvent) |
Indicates that the Force value of the |
| PressesEnded(NSSet<UIPress>, UIPressesEvent) |
Indicates the ending of a press of a physical button on a remote or game controller. (Inherited from UIResponder) |
| ReloadInputViews() |
Updates custom input and accessory views when this object is the first responder. (Inherited from UIResponder) |
| RemoteControlReceived(UIEvent) |
Indicates that a remote-control event was received. (Inherited from UIResponder) |
| RemoveConstraint(NSLayoutConstraint) |
Removes an Auto Layout constraint from the UIView's Constraints. (Inherited from UIView) |
| RemoveConstraints(NSLayoutConstraint[]) |
Removes multiple Auto Layout constraints from the UIView's Constraints. (Inherited from UIView) |
| RemoveFromSuperview() |
Detaches the UIView from its Superview. (Inherited from UIView) |
| RemoveGestureRecognizer(UIGestureRecognizer) |
Removes a gesture recognizer from the UIView's GestureRecognizers. (Inherited from UIView) |
| RemoveInteraction(IUIInteraction) |
Removes the interaction from the view. (Inherited from UIView) |
| RemoveLayoutGuide(UILayoutGuide) |
Removes |
| RemoveMotionEffect(UIMotionEffect) |
Removes the specified motion effect to the view. (Inherited from UIView) |
| RemoveObserver(NSObject, NSString, IntPtr) |
Stops the specified observer from receiving further notifications of changed values for the specified keyPath and context. (Inherited from NSObject) |
| RemoveObserver(NSObject, NSString) |
Stops the specified observer from receiving further notifications of changed values for the specified keyPath. (Inherited from NSObject) |
| RemoveObserver(NSObject, String, IntPtr) |
Stops the specified observer from receiving further notifications of changed values for the specified keyPath and context. (Inherited from NSObject) |
| RemoveObserver(NSObject, String) |
Stops the specified observer from receiving further notifications of changed values for the specified keyPath. (Inherited from NSObject) |
| ResignFirstResponder() |
Called when this UIResponder has been asked to resign its first responder status. (Inherited from UIResponder) |
| ResizableSnapshotView(CGRect, Boolean, UIEdgeInsets) |
Efficiently creates a rendering of |
| RespondsToSelector(Selector) |
Whether this object recognizes the specified selector. (Inherited from NSObject) |
| RestoreUserActivityState(NSUserActivity) |
Restores the state that is necessary for continuance of the specified user activity. (Inherited from UIResponder) |
| SafeAreaInsetsDidChange() |
Method that is called when the safe area changes. (Inherited from UIView) |
| ScrollRectToVisible(CGRect, Boolean) |
Scrolls so that is visible, optionally animating the scroll. |
| Select(NSObject) |
Indicates a "Select" editing operation.|b (Inherited from UIResponder) |
| SelectAll(NSObject) |
Indicates a "Select All" editing operation. (Inherited from UIResponder) |
| SendSubviewToBack(UIView) |
Moves a UIView so that it appears behind all its siblings. (Inherited from UIView) |
| SetContentCompressionResistancePriority(Single, UILayoutConstraintAxis) |
Sets the resistance to compression below the UIView's IntrinsicContentSize. (Inherited from UIView) |
| SetContentHuggingPriority(Single, UILayoutConstraintAxis) |
Sets the resistance to expansion beyond the UIView's IntrinsicContentSize. (Inherited from UIView) |
| SetContentOffset(CGPoint, Boolean) |
Sets the distance between the content and the UIScrollView object. |
| SetNativeField(String, NSObject) |
Obsolete.
(Inherited from NSObject)
|
| SetNeedsDisplay() |
Marks the view dirty and queues a redraw operation on it. (Inherited from UIView) |
| SetNeedsDisplayInRect(CGRect) |
Marks a region of the view as dirty and queues a redraw operation on that region. (Inherited from UIView) |
| SetNeedsFocusUpdate() |
When |
| SetNeedsLayout() |
Sets whether subviews need to be rearranged before displaying. (Inherited from UIView) |
| SetNeedsUpdateConstraints() |
Indicates to the Auto Layout system that it must call UpdateConstraints(). (Inherited from UIView) |
| SetNilValueForKey(NSString) |
Sets the value of the specified key to null. (Inherited from NSObject) |
| SetValueForKey(NSObject, NSString) |
Sets the value of the property specified by the key to the specified value. (Inherited from NSObject) |
| SetValueForKeyPath(IntPtr, NSString) |
A constructor used when creating managed representations of unmanaged objects; Called by the runtime. (Inherited from NSObject) |
| SetValueForKeyPath(NSObject, NSString) |
Sets the value of a property that can be reached using a keypath. (Inherited from NSObject) |
| SetValueForUndefinedKey(NSObject, NSString) |
Indicates an attempt to write a value to an undefined key. If not overridden, raises an NSUndefinedKeyException. (Inherited from NSObject) |
| SetValuesForKeysWithDictionary(NSDictionary) |
Sets the values of this NSObject to those in the specified dictionary. (Inherited from NSObject) |
| SetZoomScale(nfloat, Boolean) |
Sets the scale of the UIScrollView object's contents. (See ZoomScale) |
| ShouldUpdateFocus(UIFocusUpdateContext) |
Called prior to the UIView either losing or receiving focus. If either focus environment returns |
| SizeThatFits(CGSize) |
Returns the SizeF that best fits |
| SizeToFit() |
Moves and resizes the UIView so that it tightly encloses its Subviews (Inherited from UIView) |
| SnapshotView(Boolean) |
Creates a UIView that contains a snapshot image of the current view's contents. (Inherited from UIView) |
| SubviewAdded(UIView) |
Tells the view when subviews are added. (Inherited from UIView) |
| SystemLayoutSizeFittingSize(CGSize, Single, Single) |
Returns the optimal size for |
| SystemLayoutSizeFittingSize(CGSize) |
Calculates the smallest or largest size that this UIView can have that satisfies its Auto Layout constraints. (Inherited from UIView) |
| TintColorDidChange() |
Called when the TintColor changes, such as when a UIActionSheet is displayed. (Inherited from UIView) |
| ToggleBoldface(NSObject) |
Toggles the use of a bold font. (Inherited from UIResponder) |
| ToggleItalics(NSObject) |
Toggles the use of an italic font. (Inherited from UIResponder) |
| ToggleUnderline(NSObject) |
Toggles the use of underlining. (Inherited from UIResponder) |
| ToString() |
Returns a string representation of the value of the current instance. (Inherited from NSObject) |
| TouchesBegan(NSSet, UIEvent) |
Sent when one or more fingers touches the screen. (Inherited from UIResponder) |
| TouchesCancelled(NSSet, UIEvent) |
Sent when the touch processing has been cancelled. (Inherited from UIResponder) |
| TouchesEnded(NSSet, UIEvent) |
Sent when one or more fingers are lifted from the screen. (Inherited from UIResponder) |
| TouchesEstimatedPropertiesUpdated(NSSet) |
Called when the estimated properties of |
| TouchesMoved(NSSet, UIEvent) |
Sent when one or more fingers move on the screen. (Inherited from UIResponder) |
| TouchesShouldBegin(NSSet, UIEvent, UIView) |
This method is provided so that the behaviour of a touch in the content view may be customized by a subclass. |
| TouchesShouldCancelInContentView(UIView) |
This method controls if the touches of a content subview should be cancelled, which would allow dragging to start. |
| TraitCollectionDidChange(UITraitCollection) |
Defines previous trait collection. (Inherited from UIView) |
| Unbind(NSString) | (Inherited from NSObject) |
| Unbind(String) |
Obsolete.
(Inherited from NSObject)
|
| UpdateConstraints() |
Updates the Auto Layout constraints for the UIView. (Inherited from UIView) |
| UpdateConstraintsIfNeeded() |
Updates the constraints of the UIView and its Subviews. (Inherited from UIView) |
| UpdateFocusIfNeeded() |
If any focus environment has a pending update, this method forces an immediate focus update. Unlike SetNeedsFocusUpdate(), this method may be called by any UIView, whether it currently contains focus or not. (Inherited from UIView) |
| UpdateUserActivityState(NSUserActivity) |
Updates a given user activity state. (Inherited from UIResponder) |
| ValueForKey(NSString) |
Returns the value of the property associated with the specified key. (Inherited from NSObject) |
| ValueForKeyPath(NSString) |
Returns the value of a property that can be reached using a keypath. (Inherited from NSObject) |
| ValueForUndefinedKey(NSString) |
Indicates an attempt to read a value of an undefined key. If not overridden, raises an NSUndefinedKeyException. (Inherited from NSObject) |
| ViewWithTag(nint) |
Returns the UIView identified by the |
| WillChange(NSKeyValueChange, NSIndexSet, NSString) |
Indicates that the values of the specified indices in the specified key are about to change. (Inherited from NSObject) |
| WillChange(NSString, NSKeyValueSetMutationKind, NSSet) | (Inherited from NSObject) |
| WillChangeValue(String) |
Indicates that the value of the specified key is about to change. (Inherited from NSObject) |
| WillDrawLayer(CALayer) |
Called shortly before the is drawn. (Inherited from UIView) |
| WillMoveToSuperview(UIView) |
Called before the Superview changes. (Inherited from UIView) |
| WillMoveToWindow(UIWindow) |
This method is called by the runtime when assigning a new UIWindow to the UIView's view hierarcy. This method will be called on all UIViews in the hierarchy, not just the top-level UIView. (Inherited from UIView) |
| WillRemoveSubview(UIView) |
Called prior to the removal of a subview. (Inherited from UIView) |
| ZoomToRect(CGRect, Boolean) |
Zooms so that is visible. |
Events
| DecelerationEnded |
Event raised by the object. |
| DecelerationStarted |
Event raised by the object. |
| DidChangeAdjustedContentInset |
Event raised by the object. |
| DidZoom |
Event raised by the object. |
| DraggingEnded |
Event raised by the object. |
| DraggingStarted |
Event raised by the object. |
| ScrollAnimationEnded |
Event raised by the object. |
| Scrolled |
Event raised by the object. |
| ScrolledToTop |
Event raised by the object. |
| WillEndDragging |
Event raised by the object. |
| ZoomingEnded |
Event raised by the object. |
| ZoomingStarted |
Event raised by the object. |