Take a picture in iOS without UIImagePicker and without preview it

Question

Do you know any way / method to take a photo in iOS and saving it to camera Roll only with a simple button pressure without showing any preview?

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Answer 1

Assuming you want a point-and-shoot method, you can create an AVSession and just call the UIImageWriteToSavedPhotosAlbum method. Here is a link that goes into that exact process: http://www.musicalgeometry.com/?p=1297

It's also worth noting that your users need to have given the app access to their camera roll or you may experience issues saving the images.