Package apple.uikit

Class UIVisualEffectView

  • All Implemented Interfaces:
    NSCoding, NSSecureCoding, NSObject, CALayerDelegate, UIAccessibilityIdentification, UIAppearance, UIAppearanceContainer, UICoordinateSpace, UIDynamicItem, UIFocusEnvironment, UIFocusItem, UIFocusItemContainer, UILargeContentViewerItem, UIPasteConfigurationSupporting, UIResponderStandardEditActions, UITraitEnvironment, UIUserActivityRestoring
    public class UIVisualEffectView
extends UIView
implements NSSecureCoding
    UIVisualEffectView is a class that provides a simple abstraction over complex visual effects. Depending on the desired effect, the results may affect content layered behind the view or content added to the view's contentView. Please see the notes for each UIVisualEffect for more details. Proper use of this class requires some assistance on your part. Namely: • Avoid alpha values < 1 - By default, when a view is partially transparent, the system composites that view and all of its subviews in an offscreen render pass to get the correct translucency. However, UIVisualEffects require being composited as part of the content they are logically layered on top of to look correct. If alpha is less than 1 on the UIVisualEffectView or any of its superviews, many effects will look incorrect or won't show up at all. Setting the alpha on views placed inside the contentView is supported. • Judicious masking - Masks have similar semantics to non-opaque views with regards to offscreen rendering. Masks applied to the UIVisualEffectView itself are forwarded to all internal views, including the contentView. You are free to apply a mask to just the contentView. The mask you provide to UIVisualEffectView will not be the view that actually performs the mask. UIKit will make copies of the view to apply to each subview. To reflect a size change to the mask, you must apply the change to the original mask view and reset it on the effect view. Applying a mask to a superview of a UIVisualEffectView (via setMaskView: or the layer's mask property) will cause the effect to fail. • Correctly capturing snapshots - Many effects require support from the window that hosts the view. As such, attempting to take a snapshot of just the UIVisualEffectView will result in the snapshot not containing the effect at all or it appearing incorrectly. To properly snapshot a view hierarchy that contains a UIVisualEffectView, you must snapshot the entire UIWindow or UIScreen that contains it.

    • Constructor Detail

      • UIVisualEffectView

        protected UIVisualEffectView​(org.moe.natj.general.Pointer peer)

    • Method Detail

      • accessInstanceVariablesDirectly

        public static boolean accessInstanceVariablesDirectly()

      • allocWithZone

        public static java.lang.Object allocWithZone​(org.moe.natj.general.ptr.VoidPtr zone)

      • appearance

        public static java.lang.Object appearance()

      • appearanceForTraitCollection

        public static java.lang.Object appearanceForTraitCollection​(UITraitCollection trait)

      • appearanceForTraitCollectionWhenContainedIn

        @Deprecated
public static java.lang.Object appearanceForTraitCollectionWhenContainedIn​(UITraitCollection trait,
                                                                           UIAppearanceContainer ContainerClass,
                                                                           java.lang.Object... varargs)
        Deprecated.

      • appearanceForTraitCollectionWhenContainedInInstancesOfClasses

        public static java.lang.Object appearanceForTraitCollectionWhenContainedInInstancesOfClasses​(UITraitCollection trait,
                                                                                             NSArray<?> containerTypes)

      • appearanceWhenContainedIn

        @Deprecated
public static java.lang.Object appearanceWhenContainedIn​(UIAppearanceContainer ContainerClass,
                                                         java.lang.Object... varargs)
        Deprecated.

      • appearanceWhenContainedInInstancesOfClasses

        public static java.lang.Object appearanceWhenContainedInInstancesOfClasses​(NSArray<?> containerTypes)

      • areAnimationsEnabled

        public static boolean areAnimationsEnabled()

      • automaticallyNotifiesObserversForKey

        public static boolean automaticallyNotifiesObserversForKey​(java.lang.String key)

      • beginAnimationsContext

        public static void beginAnimationsContext​(java.lang.String animationID,
                                          org.moe.natj.general.ptr.VoidPtr context)

      • cancelPreviousPerformRequestsWithTarget

        public static void cancelPreviousPerformRequestsWithTarget​(java.lang.Object aTarget)

      • cancelPreviousPerformRequestsWithTargetSelectorObject

        public static void cancelPreviousPerformRequestsWithTargetSelectorObject​(java.lang.Object aTarget,
                                                                         org.moe.natj.objc.SEL aSelector,
                                                                         java.lang.Object anArgument)

      • classFallbacksForKeyedArchiver

        public static NSArray<java.lang.String> classFallbacksForKeyedArchiver()

      • classForKeyedUnarchiver

        public static org.moe.natj.objc.Class classForKeyedUnarchiver()

      • clearTextInputContextIdentifier

        public static void clearTextInputContextIdentifier​(java.lang.String identifier)

      • commitAnimations

        public static void commitAnimations()

      • debugDescription_static

        public static java.lang.String debugDescription_static()

      • description_static

        public static java.lang.String description_static()

      • hash_static

        public static long hash_static()

      • inheritedAnimationDuration

        public static double inheritedAnimationDuration()

      • instanceMethodSignatureForSelector

        public static NSMethodSignature instanceMethodSignatureForSelector​(org.moe.natj.objc.SEL aSelector)

      • instancesRespondToSelector

        public static boolean instancesRespondToSelector​(org.moe.natj.objc.SEL aSelector)

      • isSubclassOfClass

        public static boolean isSubclassOfClass​(org.moe.natj.objc.Class aClass)

      • keyPathsForValuesAffectingValueForKey

        public static NSSet<java.lang.String> keyPathsForValuesAffectingValueForKey​(java.lang.String key)

      • layerClass

        public static org.moe.natj.objc.Class layerClass()

      • new_objc

        public static java.lang.Object new_objc()

      • requiresConstraintBasedLayout

        public static boolean requiresConstraintBasedLayout()

      • resolveClassMethod

        public static boolean resolveClassMethod​(org.moe.natj.objc.SEL sel)

      • resolveInstanceMethod

        public static boolean resolveInstanceMethod​(org.moe.natj.objc.SEL sel)

      • setAnimationBeginsFromCurrentState

        public static void setAnimationBeginsFromCurrentState​(boolean fromCurrentState)

      • setAnimationCurve

        public static void setAnimationCurve​(long curve)

      • setAnimationDelay

        public static void setAnimationDelay​(double delay)

      • setAnimationDelegate

        public static void setAnimationDelegate​(java.lang.Object delegate)

      • setAnimationDidStopSelector

        public static void setAnimationDidStopSelector​(org.moe.natj.objc.SEL selector)

      • setAnimationDuration_static

        public static void setAnimationDuration_static​(double duration)

      • setAnimationRepeatAutoreverses

        public static void setAnimationRepeatAutoreverses​(boolean repeatAutoreverses)

      • setAnimationRepeatCount_static

        public static void setAnimationRepeatCount_static​(float repeatCount)

      • setAnimationStartDate

        public static void setAnimationStartDate​(NSDate startDate)

      • setAnimationTransitionForViewCache

        public static void setAnimationTransitionForViewCache​(long transition,
                                                      UIView view,
                                                      boolean cache)

      • setAnimationWillStartSelector

        public static void setAnimationWillStartSelector​(org.moe.natj.objc.SEL selector)

      • setAnimationsEnabled

        public static void setAnimationsEnabled​(boolean enabled)

      • setVersion_static

        public static void setVersion_static​(long aVersion)

      • superclass_static

        public static org.moe.natj.objc.Class superclass_static()

      • supportsSecureCoding

        public static boolean supportsSecureCoding()

      • userInterfaceLayoutDirectionForSemanticContentAttribute

        public static long userInterfaceLayoutDirectionForSemanticContentAttribute​(long attribute)

      • userInterfaceLayoutDirectionForSemanticContentAttributeRelativeToLayoutDirection

        public static long userInterfaceLayoutDirectionForSemanticContentAttributeRelativeToLayoutDirection​(long semanticContentAttribute,
                                                                                                    long layoutDirection)

      • version_static

        public static long version_static()

      • _appearance

        public java.lang.Object _appearance()
        Description copied from interface: UIAppearance
        To customize the appearance of all instances of a class, send the relevant appearance modification messages to the appearance proxy for the class. For example, to modify the bar tint color for all UINavigationBar instances: [[UINavigationBar appearance] setBarTintColor:myColor]; Note for iOS7: On iOS7 the tintColor property has moved to UIView, and now has special inherited behavior described in UIView.h. This inherited behavior can conflict with the appearance proxy, and therefore tintColor is now disallowed with the appearance proxy.
        Specified by:
        _appearance in interface UIAppearance
        Overrides:
        _appearance in class UIView

      • _appearanceWhenContainedIn

        @Deprecated
public java.lang.Object _appearanceWhenContainedIn​(UIAppearanceContainer ContainerClass,
                                                   java.lang.Object... varargs)
        Deprecated.
        Description copied from interface: UIAppearance
        To customize the appearances for instances of a class contained within an instance of a container class, or instances in a hierarchy, use +appearanceWhenContainedInInstancesOfClasses: for the appropriate appearance proxy. For example: [[UINavigationBar appearanceWhenContainedInInstancesOfClasses:@[[UISplitViewController class]]] setBarTintColor:myColor]; [[UINavigationBar appearanceWhenContainedInInstancesOfClasses:@[[UITabBarController class], [UISplitViewController class]]] setBarTintColor:myTabbedNavBarColor]; In any given view hierarchy the outermost appearance proxy wins. Specificity (depth of the chain) is the tie-breaker. In other words, the containment statement is treated as a partial ordering. Given a concrete ordering (actual subview hierarchy), we select the partial ordering that is the first unique match when reading the actual hierarchy from the window down.
        Specified by:
        _appearanceWhenContainedIn in interface UIAppearance
        Overrides:
        _appearanceWhenContainedIn in class UIView

      • contentView

        public UIView contentView()
        Do not add subviews directly to UIVisualEffectView, use this view instead.

      • _supportsSecureCoding

        public boolean _supportsSecureCoding()
        Description copied from interface: NSSecureCoding
        This property must return YES on all classes that allow secure coding. Subclasses of classes that adopt NSSecureCoding and override initWithCoder: must also override this method and return YES. The Secure Coding Guide should be consulted when writing methods that decode data.
        Specified by:
        _supportsSecureCoding in interface NSSecureCoding