Accessing UIImagePickerController Camera's Preview Screen

I am working with a basic UIImagePickerController. I have read about camera overlays and am not ready / don't need to dive into that world yet. 开发者_JS百科

After the user takes a photo, the UIImagePickerController displays a "Preview" screen. All I want to do is change the text on the button on the preview screen from "Use" to "Upload".

It seems to me that there should be a very easy way to access this, but I have found very few references to the "Preview" screen.

Any assistance would be appreciated.

That functionality is not exposed in the SDK. There is no way to customize the Preview screen.