The document discusses iPhone camera APIs introduced in iOS 3.1. It provides code samples for accessing the camera controller class and modifying camera overlay and control views. Methods are listed for taking pictures, setting transforms, and accessing overlay views. Links are provided to a sample project on GitHub that demonstrates using the camera APIs and overlay views.

1. iPhoneOS3.1
API
Kyosuke Takayama

2. OS2.x

4. ■
UIView *plView = [[[[[[self.view subviews] objectAtIndex:0]
subviews] lastObject] subviews] lastObject];
[[[plView subviews] objectAtIndex:3] removeFromSuperview];
[[[plView subviews] objectAtIndex:2] removeFromSuperview];
■
id plc = objc_getClass("PLCameraController");
NSObject * cameraController = objc_msgSend(plc, @selector(sharedInstance));
object_setInstanceVariable(cameraController, "_delegate", self);
[cameraController capturePhoto:YES];

6. iPhoneOS3.1 released!!

7. API
• Instance Method
takePicture
• Properties
cameraViewTransform
cameraOverlayView
showsCameraControls

8. [cameraCotroller takePicture]

9. cameraCotroller.cameraViewTransform
transform

10. cameraCotroller.cameraOverlayView
View

11. cameraCotroller.showsCameraControls

13. http://github.com/
ktakayama/iPhone-CameraSample

14. cameraOverlayView
○ …

16. ( Д )
…

22. cameraOverlayView view

23. view

24. cameraOverlayView
view

29. cameraOverlayView view
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
UIView *v = self.superview.superview;
[[[v subviews] objectAtIndex:0] touchesBegan:touches withEvent:event];
}

30. ……
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
UIView *v = self.superview.superview;
[[[v subviews] objectAtIndex:0] touchesBegan:touches withEvent:event];
}

31. http://github.com/
ktakayama/iPhone-CameraSample

34. view
UINavigationTransitionView
UIViewControllerWrapperView
UIView
PLCameraView
PLPreviewView
PLCameraFocusView
UIImageView
PLCropOverlay
overlayView
PLCropOverlayBottomBar