The root class of most Objective-C class hierarchies, from which subclasses inherit a basic interface to the runtime system and the ability to behave as Objective-C objects.
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Framework
class NSObject
class func initialize()Initializes the class before it receives its first message.
class func load()Invoked whenever a class or category is added to the Objective-C runtime; implement this method to perform class-specific behavior upon loading.
init()Implemented by subclasses to initialize a new object (the receiver) immediately after memory for it has been allocated.
func copy() -> AnyReturns the object returned by copy(with:).
func mutableReturns the object returned by mutable where the zone is nil.
class func superclass() -> AnyReturns the class object for the receiver’s superclass.
class func isReturns a Boolean value that indicates whether the receiving class is a subclass of, or identical to, a given class.
class func instancesReturns a Boolean value that indicates whether instances of the receiver are capable of responding to a given selector.
class func conforms(to: Protocol) -> BoolReturns a Boolean value that indicates whether the receiver conforms to a given protocol.
func method(for: Selector!) -> IMP!Locates and returns the address of the receiver’s implementation of a method so it can be called as a function.
class func instanceLocates and returns the address of the implementation of the instance method identified by a given selector.
class func description() -> StringReturns a string that represents the contents of the receiving class.
var autoA proxy for the receiving object
func perform(Selector, with: Any?, afterInvokes a method of the receiver on the current thread using the default mode after a delay.
func perform(Selector, with: Any?, afterInvokes a method of the receiver on the current thread using the specified modes after a delay.
func performInvokes a method of the receiver on the main thread using the default mode.
func performInvokes a method of the receiver on the main thread using the specified modes.
func perform(Selector, on: Thread, with: Any?, waitInvokes a method of the receiver on the specified thread using the default mode.
func perform(Selector, on: Thread, with: Any?, waitInvokes a method of the receiver on the specified thread using the specified modes.
func performInvokes a method of the receiver on a new background thread.
class func cancelCancels perform requests previously registered with the perform(_: instance method.
class func cancelCancels perform requests previously registered with perform(_:.
func forwardingReturns the object to which unrecognized messages should first be directed.
class func resolveDynamically provides an implementation for a given selector for a class method.
class func resolveDynamically provides an implementation for a given selector for an instance method.
func doesHandles messages the receiver doesn’t recognize.
func awakeOverridden by subclasses to substitute another object in place of the object that was decoded and subsequently received this message.
var classThe class to substitute for the receiver's own class during archiving.
var classOverridden by subclasses to substitute a class other than its own during coding.
var classSubclasses to substitute a new class for instances during keyed archiving.
class func classOverridden to return the names of classes that can be used to decode objects if their class is unavailable.
class func classOverridden by subclasses to substitute a new class during keyed unarchiving.
func replacementOverridden by subclasses to substitute another object for itself during archiving.
func replacementOverridden by subclasses to substitute another object for itself during encoding.
func replacementOverridden by subclasses to substitute another object for itself during keyed archiving.
class func setSets the receiver's version number.
class func version() -> IntReturns the version number assigned to the class.
var attributeAn array of NSString objects containing the names of immutable values that instances of the receiver's class contain.
var classAn object containing information about the attributes and relationships of the receiver’s class.
func inverse(forFor a given key that defines the name of the relationship from the receiver’s class to another class, returns the name of the relationship from the other class to the receiver’s class.
var toAn array containing the keys for the to-many relationship properties of the receiver.
var toThe keys for the to-one relationship properties of the receiver, if any.
var classThe receiver's Apple event type code, as stored in the NSScript object for the object’s class.
var classA string containing the name of the class.
func copyCreates and returns one or more scripting objects to be inserted into the specified relationship by copying the passed-in value and setting the properties in the copied object or objects.
func newCreates and returns an instance of a scriptable class, setting its contents and properties, for insertion into the relationship identified by the key.
var scriptingAn NSString-keyed dictionary of the receiver's scriptable properties.
func scriptingGiven an object specifier, returns the specified object or objects in the receiving container.
func finalize()The garbage collector invokes this method on the receiver before disposing of the memory it uses.
var accessibilityThe activation point for the accessibility element, in screen coordinates.
var accessibilityAn array of custom actions to display along with the built-in actions.
var accessibilityAn array of the accessibility elements in the container.
var accessibilityA Boolean value indicating whether the accessibility elements contained within this accessibility element are hidden.
var accessibilityThe deepest descendant of the accessibility hierarchy that has the focus.
var accessibilityThe frame of the accessibility element, in screen coordinates.
var accessibilityA brief description of the result of performing an action on the accessibility element, in a localized string.
var accessibilityA succinct label that identifies the accessibility element, in a localized string.
var accessibilityThe language in which to speak the accessibility element's label, value, and hint.
var accessibilityThe navigation style to apply to the object and its elements.
var accessibilityA Boolean value that indicates whether a custom accessibility object sends a notification when its corresponding UI element is destroyed.
var accessibilityThe path of the element, in screen coordinates.
var accessibilityThe combination of accessibility traits that best characterize the accessibility element.
var accessibilityThe value of the accessibility element, in a localized string.
var accessibilityA Boolean value indicating whether VoiceOver should ignore the elements within views that are siblings of the receiver.
var exposedReturns an array containing the bindings exposed by the receiver.
var isA Boolean value indicating whether the receiver is an accessibility element that an assistive application can access.
var objectReturns an object that exposes the plug-in’s scripting interface.
var objectReturns an object specifier for the receiver.
var observationReturns a pointer that identifies information about all of the observers that are registered with the observed object.
var shouldA Boolean value indicating whether VoiceOver should group together the elements that are children of the receiver, regardless of their positions on the screen.
var webReturns the Web that contains the plug-in.
var webReturns the plug-in selection color.
class var accessReturns a Boolean value that indicates whether the key-value coding methods should access the corresponding instance variable directly on finding no accessor method for a property.
func accessibilityReturns a localized description of the specified action.
func accessibilityReturns an array of action names supported by the accessibility element.
func accessibilityTells the element to activate itself and report the success or failure of the operation.
func accessibilityReturns the count of the specified accessibility array attribute.
func accessibilityReturns a subarray of values of an accessibility array attribute.
func accessibilityReturns an array of attribute names supported by the receiver.
func accessibilityReturns the value of the specified attribute in the receiver.
func accessibilityReturns the value of the receiver's parameterized attribute corresponding to the specified attribute name and parameter.
func accessibilityTells the accessibility element to decrement the value of its content.
func accessibilityReturns the accessibility element at the specified index.
func accessibilityReturns the number of accessibility elements in the container.
func accessibilitySent after an assistive technology has set its virtual focus on the accessibility element.
func accessibilitySent after an assistive technology has removed its virtual focus from an accessibility element.
func accessibilityReturns a Boolean value indicating whether an assistive technology is focused on the accessibility element.
func accessibilityReturns the deepest descendant of the accessibility hierarchy that contains the specified point.
func accessibilityTells the accessibility element to increment the value of its content.
func accessibilityReturns the index of the specified accessibility child in the parent.
func accessibilityReturns a Boolean value that indicates whether the value for the specified attribute in the receiver can be set.
func accessibilityReturns a Boolean value indicating whether the receiver should be ignored in the parent-child accessibility hierarchy.
func accessibilityReturns a list of parameterized attribute names supported by the receiver.
func accessibilityPerforms the action associated with the specified action.
func accessibilityDismisses a modal view and returns the success or failure of the action.
func accessibilityPerforms a salient action.
func accessibilityScrolls screen content in an application-specific way and returns the success or failure of the action.
func accessibilityOverrides the specified attribute in the receiver or adds it if it does not exist, and sets its value to the specified value.
func accessibilitySets the value of the specified attribute in the receiver to the specified value.
func actionSent to the delegate to request the property the action applies to.
func addRegisters the observer object to receive KVO notifications for the key path relative to the object receiving this message.
func attemptImplemented to attempt a recovery from an error noted in an application-modal dialog.
func attemptImplemented to attempt a recovery from an error noted in a document-modal sheet.
func authorizationSent to the delegate to indicate the authorization object has been created or changed. If you have saved a copy of the authorization object for your own purposes, you should discard it and call authorization for a new authorization object.
func authorizationSent to the delegate to indicate the user was authorized and the authorization view was changed to unlocked.
func authorizationSent to the delegate to indicate the user was deauthorized and the authorization view was changed to locked.
func authorizationSent to the delegate to indicate that the view’s visibility has changed.
func authorizationSent to the delegate to indicate that deauthorization is about to occur.
func authorizationSent to the delegate when a user clicks the open lock icon.
func awakePrepares the receiver for service after it has been loaded from an Interface Builder archive, or nib file.
func bind(NSBindingEstablishes a binding between a given property of the receiver and the property of a given object specified by a given key path.
func candidates(Any!) -> [Any]!Returns an array of candidates.
func certificateImplements custom help behavior for the modal panel.
func chooseImplements custom help behavior for the modal panel.
func coerceUses type info from the class description and NSScript to attempt to convert value for key to the proper type, if necessary.
func commitInforms the controller that the composition should be committed.
func composedReturn the current composed string.
func compositionCalled after an input parameter in the composition parameter view has been edited.
func compositionAllows you to define which composition parameters are visible in the user interface when the composition parameter view refreshes.
func compositionPerforms custom tasks when the selected composition in the composition picker view changes.
func compositionPerforms custom tasks when the composition picker view starts animating a composition.
func compositionPerforms custom tasks when the composition picker view stops animating a composition.
func dictionaryReturns a dictionary containing the property values identified by each of the keys in a given array.
func didInforms the observed object that the specified change has occurred on the indexes for a specified ordered to-many relationship.
func didInforms the observed object that the value of a given property has changed.
func didInforms the observed object that the specified change was made to a specified unordered to-many relationship.
func didProcesses a command generated by user action such as typing certain keys or pressing the mouse button.
func doesReturns a Boolean value that indicates whether the receiver contains a given object.
func exceptionImplemented by the delegate to evaluate whether the delegating NSException instance should handle a given exception.
func exceptionImplemented by the delegate to evaluate whether the delegating NSException instance should log a given exception.
func fileAn NSFile object sends this message to its handler for each error it encounters when copying, moving, removing, or linking files or directories.
func fileAn NSFile object sends this message to a handler immediately before attempting to move, copy, rename, or delete, or before attempting to link to a given path.
func finalizePerforms cleanup when the scripting environment is reset.
func fontRequests permission from the Font panel delegate to display the given font name in the Font panel.
func handle(NSEvent!, client: Any!) -> BoolHandles key down and mouse events.
func imagePerforms custom tasks when the user right-clicks the image browser view background.
func imagePerforms custom tasks when the user double-clicks an item in the image browser view.
func imagePerforms custom tasks when the user right-clicks an item in the image browser view.
func imageReturns the group at the specified index.
func imageReturns an object for the item in an image browser view that corresponds to the specified index.
func imageSignals that the specified items should be moved to the specified destination.
func imageSignals that a remove operation should be applied to the specified items.
func imageSignals that a drag should begin.
func imagePerforms custom tasks when the selection changes.
func imageReturns the image to display.
func imageReturns the representation type of the image to display.
func imageReturns the display subtitle of the image.
func imageReturns the display title of the image.
func imageReturns a unique string that identifies the data source item.
func imageReturns the version of the item.
func index(ofReturns the index of the specified accessibility element.
func indicesReturns the indices of the specified container objects.
func infoReturns a dictionary describing the receiver’s binding.
func inputHandles key down events that do not map to an action method.
func inputReceives Unicode, the key code that generated it, and any modifier flags.
func insertInserts an object at the specified index in the collection specified by the passed key.
func insertInserts an object in the collection specified by the passed key.
func invokeExecutes when a script attempts to invoke a method on an exposed object directly.
func invokeHandles undefined method invocation from the scripting environment.
func isReturns a Boolean value that indicates whether receiver is considered to be “like” a given string when the case of characters in the receiver is ignored.
func isReturns a Boolean value that indicates whether the receiver is equal to another given object.
func isReturns a Boolean value that indicates whether the receiver is greater than another given object.
func isReturns a Boolean value that indicates whether the receiver is greater than or equal to another given object.
func isReturns a Boolean value that indicates whether the receiver is less than another given object.
func isReturns a Boolean value that indicates whether the receiver is less than or equal to another given object.
func isReturns a Boolean value that indicates whether the receiver is "like" another given object.
func isReturns a Boolean value that indicates whether the receiver is not equal to another given object.
func mutableReturns a mutable array proxy that provides read-write access to an ordered to-many relationship specified by a given key.
func mutableReturns a mutable array that provides read-write access to the ordered to-many relationship specified by a given key path.
func mutableReturns a mutable ordered set that provides read-write access to the uniquing ordered to-many relationship specified by a given key.
func mutableReturns a mutable ordered set that provides read-write access to the uniquing ordered to-many relationship specified by a given key path.
func mutableReturns a mutable set proxy that provides read-write access to the unordered to-many relationship specified by a given key.
func mutableReturns a mutable set that provides read-write access to the unordered to-many relationship specified by a given key path.
func namesReturns the names of the files that the receiver promises to create at a specified location.
func numberReturns the number of groups in an image browser view.
func numberReturns the number of records managed by the data source object.
func observeInforms the observing object when the value at the specified key path relative to the observed object has changed.
func optionReturns an array describing the options for the specified binding.
func originalReturn the string that consists of the precomposed Unicode characters.
func performSent to the delegate to perform the action.
func prepareCalled when a designable object is created in Interface Builder.
func provideSupplies data to a CIImage object.
func removeStops the observer object from receiving change notifications for the property specified by the key path relative to the object receiving this message.
func removeStops the observer object from receiving change notifications for the property specified by the key path relative to the object receiving this message, given the context.
func removeRemoves the object at the specified index from the collection specified by the passed key.
func replaceReplaces the object at the specified index in the collection specified by the passed key.
func saveCalled to determine if the specified uniform type identifier should be shown in the save panel.
func scriptingReturns true if, in a scripting comparison, the compared object matches the beginning of object.
func scriptingReturns true if, in a scripting comparison, the compared object contains object.
func scriptingReturns true if, in a scripting comparison, the compared object matches the end of object.
func scriptingReturns true if, in a scripting comparison, the compared object is equal to object.
func scriptingReturns true if, in a scripting comparison, the compared object is greater than object.
func scriptingReturns true if, in a scripting comparison, the compared object is greater than or equal to object.
func scriptingReturns true if, in a scripting comparison, the compared object is less than object.
func scriptingReturns true if, in a scripting comparison, the compared object is less than or equal to object.
func setInvoked by set when it’s given a nil value for a scalar value (such as an int or float).
func setSets the property of the receiver specified by a given key to a given value.
func setSets the value for the property identified by a given key path to a given value.
func setInvoked by set when it finds no property for a given key.
func setSets properties of the receiver with values from a given dictionary, using its keys to identify the properties.
func shouldSent to the delegate to determine whether the action should be enabled.
func title(for: ABPerson!, identifier: String!) -> String!Sent to the delegate to request the title of the menu item for the action.
func unbind(NSBindingRemoves a given binding between the receiver and a controller.
func validateThrows an error when the value specified by a given pointer is not valid or can't be made valid for the property identified by a given key.
func validateThrows an error when the value specified by a given pointer is not valid for a given key path relative to the receiver.
func value(at: Int, inRetrieves an indexed object from the collection specified by the passed key.
func valueReturns the class of the value that will be returned for the specified binding.
func value(forReturns the value for the property identified by a given key.
func value(forReturns the value for the derived property identified by a given key path.
func value(forInvoked by value(for when it finds no property corresponding to a given key.
func value(withRetrieves a named object from the collection specified by the passed key.
func value(withRetrieves an object by ID from the collection specified by the passed key.
func webLoads a URL into a web frame.
func webTells the container to show a status message.
func webPrepares the plug-in for deallocation.
func webInitializes the plug-in.
func webInvoked when an error occurs loading the main resource.
func webInvoked when the connection successfully finishes loading data.
func webInvoked when the connection loads data incrementally.
func webInvoked when the connection receives sufficient data to construct the URL response for its request.
func webControls plug-in behavior based on its selection.
func webTells the plug-in to start normal operation.
func webTells the plug-in to stop normal operation.
func willInforms the observed object that the specified change is about to be executed at given indexes for a specified ordered to-many relationship.
func willInforms the observed object that the value of a given property is about to change.
func willInforms the observed object that the specified change is about to be made to a specified unordered to-many relationship.
func workflowInvoked when the receiver's workflow encounters an error.
func workflowInvoked when an action in the receiver's workflow is finished running.
func workflowInvoked when an action in the receiver's workflow is about to run.
func workflowTells the delegate that the workflow controller object finished running.
func workflowTells the delegate that the workflow controller object has stopped.
func workflowTells the delegate that the workflow controller object is about to run.
func workflowTells the delegate that the workflow controller object is about to stop.
class func automaticallyReturns a Boolean value that indicates whether the observed object supports automatic key-value observation for the given key.
class func defaultReturns an object that will be used as the placeholder for the binding, when a key value coding compliant property of an instance of the receiving class returns the value specified by marker, and no other placeholder has been specified.
class func exposeExposes the specified binding, advertising its availability.
class func isReturns whether a key should be hidden from the scripting environment.
class func isReturns whether a selector should be hidden from the scripting environment.
class func keyReturns a set of key paths for properties whose values affect the value of the specified key.
class func setSets placeholder as the default placeholder for the binding, when a key value coding compliant property of an instance of the receiving class returns the value specified by marker, and no other placeholder has been specified.
class func webReturns the scripting environment name for an attribute specified by a key.
class func webReturns the scripting environment name for a selector.
protocol NSObjectThe group of methods that are fundamental to all Objective-C objects.
A mechanism by which you can access the properties of an object indirectly by name or key.