Package apple.backgroundtasks

Class BGTask

  • All Implemented Interfaces:
    NSObject
    Direct Known Subclasses:
    BGAppRefreshTask, BGProcessingTask
    public class BGTask
extends NSObject
    An abstract class that represents the background work for which the app was launched to handle. Subclasses of this type are created by the system and should not be directly instantiated.

    • Constructor Detail

      • BGTask

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

    • Method Detail

      • accessInstanceVariablesDirectly

        public static boolean accessInstanceVariablesDirectly()

      • alloc

        public static BGTask alloc()

      • 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()

      • expirationHandler

        public BGTask.Block_expirationHandler_ret expirationHandler()
        Called by the system shortly before your app's background time expires. There is a limit to how long your app has to perform its background work, and your work may need to be interrupted if system conditions change. Assign a handler to this property to cancel any ongoing tasks, perform any needed cleanup, and then call setTaskCompletedWithSuccess: to signal completion to the system and allow your app to be suspended. This property is cleared after it is called by the system or when setTaskCompletedWithSuccess: is called. This is to mitigate the impact of a retain cycle created by referencing the BGTask instance inside this block.

      • hash_static

        public static long hash_static()

      • identifier

        public java.lang.String identifier()
        The identifier associated with the request used to schedule this background work.

      • 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)

      • setExpirationHandler

        public void setExpirationHandler​(BGTask.Block_setExpirationHandler value)
        Called by the system shortly before your app's background time expires. There is a limit to how long your app has to perform its background work, and your work may need to be interrupted if system conditions change. Assign a handler to this property to cancel any ongoing tasks, perform any needed cleanup, and then call setTaskCompletedWithSuccess: to signal completion to the system and allow your app to be suspended. This property is cleared after it is called by the system or when setTaskCompletedWithSuccess: is called. This is to mitigate the impact of a retain cycle created by referencing the BGTask instance inside this block.

      • setTaskCompletedWithSuccess

        public void setTaskCompletedWithSuccess​(boolean success)
        Marks this task as complete. Call this method as soon as the background work associated with this task is complete. The system provides your app with a limited amount of time to finish the task. If you do not call setTaskCompletedWithSuccess: on the task, the system continues to run in the background until all the available time is consumed, wasting battery power. The system suspends the app as soon as all background tasks are complete.
        Parameters:
        success - Whether the task was completed successfully. If the task was unsuccessful, you may request the system to try again later by submitting a new task request to the scheduler before calling this method.

      • 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()