How do you export/import image data like Apple's Contacts app?

Question

I have an core data app that stores strings and a couple of images. I would like users to be able to send entries to each other via email (like Apple's Contacts app).

I have created a url scheme that exports/imports all the strings, but the image data is a tough one.

Any help or point in the right direction would be greatly appreciated. Thanks

Answer 1

If the images aren't too huge, you could put the data in the URL, Base64 encoded. If they're too big for that, you might need to figure out some intermediate storage, like uploading them to your server from the sender, and including some ID in the URL that will allow your app to download the image on the receiving side.

Answer 2

The iPhone mail API supports adding an element to the email that you can use to embed the image as an attachment. The following lines of code will add the image to an email:

NSData *imageData = UIImageJPEGRepresentation(myImage, 0.7);
[userSubmitCompose addAttachmentData:imageData mimeType:@"image/jpg" fileName:@"image.jpg"];