Open Radar

 
Summary:
My app uses a UIImagePickerController with a custom cameraOverlayView that has a shutter button and flash button to toggle between On/Off/Auto. When the flash is on (picker.cameraFlashMode = UIImagePickerControllerCameraFlashModeOn), and the user locks their phone with the power button while a picture is being taken (i.e. immediately after -takePicture is called), the UIImagePickerController crashes. See the attached crash report.

Steps to Reproduce:
1. Present UIImagePickerController with shutter button on custom overlay and cameraFlashMode = UIImagePickerControllerCameraFlashModeOn.
2. Push shutter button.
3. Immediately (before or during the flash), hit the iPhone's power button to lock it.



Expected Results:
No crash. Ideally finish taking the picture and call imagePickerController:didFinishPickingMediaWithInfo: on the delegate.

Actual Results:
The UIImagePickerController crashes with:

FatalException: NSInvalidArgumentException
*** setObjectForKey: object cannot be nil (key: UIImagePickerControllerOriginalImage)

This happens inside inside __CreateInfoForImage, called from PLNotifyImagePickerOfImageAvailability.

Notes:
I was also able to replicate this by dismissing the UIImagePickerController via the app's UI rather than hitting the power button. I disabled user interaction in the app while the picture is being taken to prevent that scenario, but I can't disable the power button.

I tried changing my settings to require a passcode after one minute rather than immediately, thinking maybe this had something to do with data protection, but I was still able to replicate the crash reliably.

Configuration:
iPhone 6s, 64GB. AT&T. I also have Crashlytics reports for this on other iPhone models. No iPads, but that might be a coincidence.