Intercept UIImagePicker takePhoto event

[kieran12]

Hi,

I am developing an app which involves taking a photo. I display the UIImagePickerController with the rear camera option. When the button is pressed to take the photo I want to begin a 3 second countdown. I know that I can do this using custom controls and the [imagePicker takePicture] method but I don't know how to do it using the default controls.

Any ideas?

Kieran