# [KVOController](https://github.com/facebook/KVOController)
[](https://travis-ci.org/facebook/KVOController)
[](https://codecov.io/github/facebook/KVOController)
[](http://cocoadocs.org/docsets/KVOController)
[](http://cocoadocs.org/docsets/KVOController)
Key-value observing is a particularly useful technique for communicating between layers in a Model-View-Controller application. KVOController builds on Cocoa's time-tested key-value observing implementation. It offers a simple, modern API, that is also thread safe. Benefits include:
- Notification using blocks, custom actions, or NSKeyValueObserving callback.
- No exceptions on observer removal.
- Implicit observer removal on controller dealloc.
- Thread-safety with special guards against observer resurrection – [rdar://15985376](http://openradar.appspot.com/radar?id=5305010728468480).
For more information on KVO, see Apple's [Introduction to Key-Value Observing](https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/KeyValueObserving/KeyValueObserving.html).
## 关于此版本
此版本不兼容原KVOController接口，在原来基础上，把监听接口作为了NSObject的方法，并且支持对同一个KeyPath添加多个监听block或者action
IOS面部捕捉解决方案(ARkit).zip
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2024-01-15
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IOS面部捕捉解决方案(ARkit).zip （194个子文件） 
CameraKit 144KB CodeResources 5KB CodeResources 4KB EKMetalKit 272KB .gitignore 260B stb_image.h 254KB FBKVOController.h 6KB NSObject+FBKVOController.h 3KB CKCaptureDevice.h 2KB LAppModel.h 2KB CKVideoRecorder.h 2KB CKSession.h 2KB LAppAllocator.h 2KB CKSessionConfiguration.h 1KB XDModelParameter.h 1KB FBKVOTesting.h 1KB XDPackManager.h 1KB EKSampleBuffer.h 1KB EKMetalContext.h 979B EKMetalRender.h 974B XDLive2DCaptureViewModel.h 945B XDDlibWarpper.h 903B XDMathf.h 890B XDFaceAnchor.h 887B XDModelParameterConfiguration.h 856B XDLive2DControlViewModel.h 797B EKMetalRenderLiveview.h 783B LAppOpenGLContext.h 730B XDUserDefineKeys.h 711B XDSmoothDamp.h 702B XDRawJSONSocketService.h 702B XDControlValueLinear.h 697B EKPixelBuffer.h 681B EKMetalKit.h 642B XDBaseService.h 628B NSError+EKMetalKit.h 604B XDResourceDownloader.h 593B XDLive2DCaptureViewController.h 585B XDWebSocketService.h 523B XDDefaultModelParameterConfiguration.h 513B XDSimpleKalman.h 483B CKCapbility.h 459B XDLive2DControlViewController.h 447B XDLive2DCaptureARKitViewModel.h 423B XDDlibModelParameterConfiguration.h 406B XDBaseNetworkPack.h 399B XDRawJSONNetworkPack.h 394B XDQRScanViewController.h 390B KVSigTestColorSegmentModel.h 382B XDFilePath.h 350B KVOController.h 349B XDOpenCVWarpper.h 338B XDLive2DCaptureDlibViewModel.h 335B XDDlibCaptureViewController.h 330B UIStoryboard+XDStoryboard.h 326B CameraKit.h 314B UILabel+Test.h 289B KVSigTestViewController.h 282B AppDelegate.h 280B NSString+XDIPValiual.h 279B EKMetalCompute.h 258B LAppBundle.h 248B KVSigTestMenuViewController.h 241B ViewController.h 217B XDControlValueProtocol.h 158B AppDelegate.h 142B ViewController.h 101B Contents.json 3KB Contents.json 2KB Contents.json 62B Contents.json 62B LICENSE 34KB LICENSE 1KB Podfile.lock 488B Podfile.lock 320B FBKVOControllerTests.m 20KB XDLive2DControlViewController.m 14KB FBKVOController.m 12KB XDDefaultModelParameterConfiguration.m 10KB XDLive2DCaptureViewController.m 9KB XDLive2DCaptureDlibViewModel.m 7KB XDPackManager.m 6KB XDDlibModelParameterConfiguration.m 6KB XDDlibCaptureViewController.m 6KB XDQRScanViewController.m 5KB XDLive2DCaptureARKitViewModel.m 4KB XDModelParameter.m 3KB XDLive2DControlViewModel.m 3KB XDWebSocketService.m 3KB NSObject+FBKVOController.m 3KB XDMathf.m 2KB XDRawJSONSocketService.m 2KB XDModelParameterConfiguration.m 2KB KVSigTestViewController.m 2KB ViewController.m 2KB FaceXDTests.m 2KB XDResourceDownloader.m 1KB XDFilePath.m 1KB XDLive2DCaptureViewModel.m 1KB XDControlValueLinear.m 1KB共 194 条
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