Package apple.uikit

Class UIFocusSystem

  • All Implemented Interfaces:
    NSObject

    public class UIFocusSystem
    extends NSObject
    UIFocusSystem instances manage focus state within a part of the user interface. They are in charge of tracking the current focused item, as well as processing focus updates.
    • Constructor Detail

      • UIFocusSystem

        protected UIFocusSystem​(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)
      • automaticallyNotifiesObserversForKey

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

        public static java.lang.String debugDescription_static()
      • description_static

        public static java.lang.String description_static()
      • environmentContainsEnvironment

        public static boolean environmentContainsEnvironment​(UIFocusEnvironment environment,
                                                             UIFocusEnvironment otherEnvironment)
        Returns true if `environment` is an ancestor of `otherEnvironment`, or false if otherwise.
      • hash_static

        public static long hash_static()
      • 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)
      • new_objc

        public static java.lang.Object new_objc()
      • resolveClassMethod

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

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

        public static void setVersion_static​(long aVersion)
      • superclass_static

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

        public static long version_static()
      • focusSystemForEnvironment

        public static UIFocusSystem focusSystemForEnvironment​(UIFocusEnvironment environment)
        Return the focus system that the provided environment is contained in. Returns nil if focus interaction is not supported, or if the environment is not associated with any focus system.
      • focusedItem

        public UIFocusItem focusedItem()
        The currently focused item in this focus system.
      • requestFocusUpdateToEnvironment

        public void requestFocusUpdateToEnvironment​(UIFocusEnvironment environment)
        Requests a focus update to the specified environment. If accepted, the focus update will happen in the next run loop cycle.
      • updateFocusIfNeeded

        public void updateFocusIfNeeded()
        Forces any pending focus update to be committed immediately.