Setting Up the Picker
You instantiate a camera version of the image picker the same way you create a picture selection one. Just change the source type from the library or Camera Roll to the camera:
picker.sourceType = UIImagePickerControllerSourceTypeCamera;
As with other modes, you can allow or disallow image editing as part of the photo-capture process by setting the allowsEditing property.
Although the setup with UIImagePickerControllerSourceTypeCamera is the same as with UIImagePickerControllerSourceTypePhotoLibrary, the user experience differs slightly (see Figure 8-2). The camera picker offers a preview that displays after the user taps the camera icon to snap a photo. This preview lets users retake the photo ...
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