Question

Actually my question in title, how to determine is image made on device or it downloaded from outside.

I use ALAssetsLibrary and standard UIImagePickerController, to load images but they can return an image which user saved from internet or get from email, I need to switch images which made on device with camera and other.

Feel free to ask any questions, i hope community will help me with it.

Answer 1

You can try to read dictionary like:

- (void) imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
//your code
NSLog(@"INFO: %@", info);
}

and you will see that there is a key with device information:

"{TIFF}" =         {
            DateTime = "2012:09:13 16:59:41";
            Make = Apple;
            Model = "iPhone 4S";
            Software = "5.1.1";
            XResolution = 72;
            YResolution = 72;
        };

hope this help.