UICollectionViewCell 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.
Represents a reusable content view in the set being presented by the UICollectionView.
[Foundation.Register("UICollectionViewCell", true)]
[ObjCRuntime.Introduced(ObjCRuntime.PlatformName.iOS, 6, 0, ObjCRuntime.PlatformArchitecture.All, null)]
public class UICollectionViewCell : UIKit.UICollectionReusableViewtype UICollectionViewCell = class
inherit UICollectionReusableView- Inheritance
- Attributes
Remarks
UICollectionViewCells are reusable views that present a single item in the data set that is being presented by the collection view. As subtypes of UICollectionReusableView, they are expected to be managed by their containing UICollectionView.
The UICollectionView class is designed to work with large datasets while respecting the resource limitations of iOS devices. To do this, the UICollectionView maintains a reuse queue of component views of type UICollectionReusableView, instantiating only as many as are strictly necessary and replacing values in UICollectionViewCells that are no longer visible with values appropriate to UICollectionViewCells that are about to scroll onto the screen.
The reuse queue implies an unusual lifecycle for UICollectionViewCells (and other subtypes of UICollectionReusableView). Rather than the application developer allocating them and allowing the garbage collector to scavenge them appropriately, UICollectionReusableViews are allocated by a UICollectionView and those that are no longer on-screen are reused without deallocation. (See UICollectionView for more discussion.)
Each cell is an instance of the UICollectionViewCell class, which is comprised of three different views, as shown in the figure below, taken from the "Introduction to Collection Views" guide:
The Cells in the screenshot above are created by inheriting from UICollectionView and setting the ContentView, ContentView, and BackgroundView properties as shown in the following code:
BackgroundView = new UIView{BackgroundColor = UIColor.Orange};
SelectedBackgroundView = new UIView{BackgroundColor = UIColor.Green};
ContentView.Layer.BorderColor = UIColor.LightGray.CGColor;
ContentView.Layer.BorderWidth = 2.0f;
ContentView.BackgroundColor = UIColor.White;
ContentView.Transform = CGAffineTransform.MakeScale (0.8f, 0.8f);
imageView = new UIImageView (UIImage.FromBundle ("placeholder.png"));
imageView.Center = ContentView.Center;
imageView.Transform = CGAffineTransform.MakeScale (0.7f, 0.7f);
ContentView.AddSubview (imageView);
Since an individual instance of UICollectionViewCell may be reused without being re-allocated, the application developer may also have to adjust aspects dynamically using the GetCell(UICollectionView, NSIndexPath) method, as shown in the following code, taken from the "Introduction to Collection Views" sample. The animalCell is an instance of a subtype of UICollectionViewCell while the animal variable refers to an instance of a model class. The GetCell(UICollectionView, NSIndexPath) method sets visual aspects of the UICollectionViewCell to conform to the animal data, in this case, setting an Image property appropriately.
public override UICollectionViewCell GetCell (UICollectionView collectionView, MonoTouch.Foundation.NSIndexPath indexPath)
{
var animalCell = (AnimalCell) collectionView.DequeueReusableCell (animalCellId, indexPath);
var animal = animals [indexPath.Section * (animals.Count / SectionCount) + indexPath.Row];
animalCell.Image = animal.Image;
return animalCell;
}
Constructors
| UICollectionViewCell() |
Default constructor, initializes a new instance of this class. |
| UICollectionViewCell(CGRect) |
Initializes the UICollectionViewCell with the specified frame. |
| UICollectionViewCell(IntPtr) |
A constructor used when creating managed representations of unmanaged objects; Called by the runtime. |
| UICollectionViewCell(NSCoder) |
A constructor that initializes the object from the data stored in the unarchiver object. |
| UICollectionViewCell(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) |
| 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) |
| 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) |
| BackgroundView |
The UIView that is displayed behind the cell's ContentView. |
| BottomAnchor |
The NSLayoutYAxisAnchor that defines the bottom of this UIView. (Inherited from UIView) |
| 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) |
| 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) |
| ContentMode |
Controls how the cached bitmap of a view must be rendered when the view's bounds change. (Inherited from UIView) |
| ContentScaleFactor |
The number of device pixels per logical coordinate point. (Inherited from UIView) |
| ContentStretch |
Developers should not use this deprecated property. Developers should use 'CreateResizableImage' instead. (Inherited from UIView) |
| ContentView |
The main UIView displayed by the cell. |
| CoordinateSpace |
Returns the coordinate space implemenation for the UIView. (Inherited from UIView) |
| DebugDescription |
A developer-meaningful description of this object. (Inherited from NSObject) |
| 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) |
| 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) |
| 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) |
| Highlighted |
The highlight state of this UICollectionViewCell. |
| 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) |
| 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) |
| 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) |
| ParentFocusEnvironment |
Gets the parent focus environment. (Inherited from UIView) |
| PasteConfiguration |
The UIPasteConfiguration supported by |
| 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) |
| RestorationIdentifier |
If not |
| RetainCount |
Returns the current Objective-C retain count for the object. (Inherited from NSObject) |
| ReuseIdentifier |
Used to specify kinds of UICollectionReusableView's that may be reused by the queue. (Inherited from UICollectionReusableView) |
| 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) |
| Selected |
The selection state of this UICollectionViewCell. |
| SelectedBackgroundView |
The UIView that is displayed, above the BackgroundView, when the cell is selected. |
| 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) |
| 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) |
| 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) |
| ViewPrintFormatter |
Returns a UIViewPrintFormatter appropriate for the UIView. (Inherited from UIView) |
| WidthAnchor |
The NSLayoutDimension that defines the horizontal extent of this UIView. (Inherited from UIView) |
| Window | (Inherited from UIView) |
| Zone | (Inherited from NSObject) |
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) |
| 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. |
| ApplyLayoutAttributes(UICollectionViewLayoutAttributes) |
Applies the specified layout attributes to this UICollectionReusableView. (Inherited from UICollectionReusableView) |
| 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) |
| DidTransition(UICollectionViewLayout, UICollectionViewLayout) |
Indicates that a transition has completed. (Inherited from UICollectionReusableView) |
| 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 UIView object. (Inherited from UIView) |
| DoesNotRecognizeSelector(Selector) |
Indicates that this object does not recognize the specified selector. (Inherited from NSObject) |
| DragStateDidChange(UICollectionViewCellDragState) |
Method that is called when the cell's drag state changes. |
| 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) |
| 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 UICollectionViewCell.UICollectionViewCellAppearance for the subclass of UICollectionViewCell. |
| GetAppearance<T>(UITraitCollection, Type[]) |
Obtains the appearance proxy UICollectionViewCell.UICollectionViewCellAppearance for the subclass of UICollectionViewCell that has the specified trait collection when the view is hosted in the specified hierarchy. |
| GetAppearance<T>(UITraitCollection) |
Obtains the appearance proxy UICollectionViewCell.UICollectionViewCellAppearance for the subclass of UICollectionViewCell. |
| 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. (Inherited from UIView) |
| 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 |
| PreferredLayoutAttributesFittingAttributes(UICollectionViewLayoutAttributes) |
Called to allow the cell to change the layout attributes. (Inherited from UICollectionReusableView) |
| PrepareForInterfaceBuilder() | (Inherited from NSObject) |
| PrepareForReuse() |
Called prior to this UICollectionReusableView being reused by the UICollectionView's reuse queue. (Inherited from UICollectionReusableView) |
| 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) |
| 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) |
| 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) |
| 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) |
| 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) |
| WillTransition(UICollectionViewLayout, UICollectionViewLayout) |
Indicates that a transition will shortly begin. (Inherited from UICollectionReusableView) |