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I have an imagePickerController that is used for importing photos from library into my app.
When in ALAssetsLibraryAssetForURLResultBlock, I’m trying to find out if the ALAsset I’ve got in the block is a photo taken as a screen-shot or is it a “genuine” photo, taken by the camera.
I’ve tried to go through the ALAsset’s metadata dictionaries but couldn’t find any flag / indication that might fit.
Anyone have any ideas?
Well, I was researching and experimenting .. and the closest solution I’ve found is based on the fact that iPhone screenshots don’t yield EXIF records (while all other generated photos do generate them).
Therefore, once a photo is selected in the picker, I’m checking if the photo’s metadata consists an EXIF record and if it doesn’t – I conclude that the photo was screenshot.
I found it’s the “as good as it gets” solution for now, although it’s not an official one.
Cheers.