在iPhone中拍摄图像时如何在相机中显示虹膜（有人说快门）？

Question

I have implemented camera in iPhone and taking images and save it in PhotoAlbum. Now what i want is when i save one image and make button enable for taking second image i want iris to be shown in between.So that it feels excatly like Camera functionality of iPhone. How i do that please give some suggestion. Thanks

Answer 1

Apps like Stachematic and Zombiematic actually got away with using this private API ...

CATransition *animation = [CATransition animation];
[animation setDelegate:self];
[animation setDuration:0.3];
animation.timingFunction = UIViewAnimationCurveEaseInOut;
[animation setType:@"cameraIris"];
[cameraView.layer addAnimation:animation forKey:nil];