title: Take a picture in iOS without UIImagePicker and without preview it
body: <p>Do you know any way / method to <strong>take a photo in iOS</strong> and saving it to camera Roll only with a simple button pressure without showing any preview?</p>
  
  <p>I already know how to show the camera view but it show the preview of the image and the user need to click the take photo button to take the photo.</p>
  
  <p><strong>In few Words:</strong> the user click the button, the picture is taken, without previews nor double checks to take / save the photo.</p>
  
  <p>I already found the <code>takePicture</code> method of <code>UIIMagePickerController</code> Class <a href="http://developer.apple.com/library/ios/documentation/uikit/reference/UIImagePickerController_Class/UIImagePickerController/UIImagePickerController.html#//apple_ref/occ/instm/UIImagePickerController/takePicture" rel="noreferrer">http://developer.apple.com/library/ios/documentation/uikit/reference/UIImagePickerController_Class/UIImagePickerController/UIImagePickerController.html#//apple_ref/occ/instm/UIImagePickerController/takePicture</a></p>