iPhone - is there a way to detect where a picture was selected from?

When Using UIPickerController I have two choices on my App:

• take a picture
• take a picture from the library (photo album)

but the library itself is composed by two p开发者_运维百科arts:

• camera roll
• other photo albums

Is there a way to detect if the picture was selected from the camera roll or from the other photo albums?

thanks for any help.

I don't think the API allows this. But you can always check the file's time stamp. If it's very new (a couple of sec before), probably it's not a library picked file. Just a trick, may not be foolproof though.