iOS 基礎類解析 - NSObject

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NSObject Class Reference

Inherits from none (NSObject is a root class) Conforms to NSObject
Framework /System/Library/Frameworks/Foundation.framework Availability Available in iOS 2.0 and later. Declared in NSKeyedArchiver.h
NSObject.h
NSRunLoop.h
NSThread.h
objc/NSObject.h
Related sample code AdvancedURLConnections AVPlayerDemo CryptoExercise PhotosByLocation TheElements

Initializing a Class

• + initialize
• + load

  Creating, Copying, and Deallocating Objects

  • + alloc
  • + allocWithZone:
  • – init
  • – copy
  • + copyWithZone:
  • – mutableCopy
  • + mutableCopyWithZone:
  • – dealloc
  • + new

    Identifying Classes

    • + class
    • + superclass
    • + isSubclassOfClass:

      Testing Class Functionality

      • + instancesRespondToSelector:

        Testing Protocol Conformance

        • + conformsToProtocol:

          Obtaining Information About Methods

          • – methodForSelector:
          • + instanceMethodForSelector:
          • + instanceMethodSignatureForSelector:
          • – methodSignatureForSelector:

            Describing Objects

            • + description

              Discardable Content Proxy Support

              • – autoContentAccessingProxy

                Sending Messages

                • – performSelector:withObject:afterDelay:
                • – performSelector:withObject:afterDelay:inModes:
                • – performSelectorOnMainThread:withObject:waitUntilDone:
                • – performSelectorOnMainThread:withObject:waitUntilDone:modes:
                • – performSelector:onThread:withObject:waitUntilDone:
                • – performSelector:onThread:withObject:waitUntilDone:modes:
                • – performSelectorInBackground:withObject:
                • + cancelPreviousPerformRequestsWithTarget:
                • + cancelPreviousPerformRequestsWithTarget:selector:object:

                  Forwarding Messages

                  • – forwardingTargetForSelector:
                  • – forwardInvocation:

                    Dynamically Resolving Methods

                    • + resolveClassMethod:
                    • + resolveInstanceMethod:

                      Error Handling

                      • – doesNotRecognizeSelector:

                        Archiving

                        • – awakeAfterUsingCoder:
                        • – classForCoder
                        • – classForKeyedArchiver
                        • + classFallbacksForKeyedArchiver
                        • + classForKeyedUnarchiver
                        • – replacementObjectForCoder:
                        • – replacementObjectForKeyedArchiver:
                        • + setVersion:
                        • + version

                          Deprecated Methods

                          • – finalize
                            

                            
                            

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