How to send a photo to my app from default iOS Camera app?

Question

I know my app can read the photos saved in iOS photo-library; also my app can save a new photo in the default iOS photo-library. But what I am trying to achieve is something like this: the default Photos app should be able to send a photo to my iOS app, just like you can share a photo to Facebook or send to iOS Mail app.

I want my application to be listed in this screen. Note: this is a screenshot of iOS6 Photo application.

Answer 1

POSSIBLE!!!

This thing is very interesting on iOS.

You have to tell iOS what kind of files your app can open (see pic below)

• Kind of file your app can open will be set by Conforms To field (see all kinds https://developer.apple.com/library/ios/documentation/miscellaneous/Reference/UTIRef/Articles/System-DeclaredUniformTypeIdentifiers.html)

• This is a best sample about it (http://www.raywenderlich.com/1980/email-tutorial-for-ios-how-to-import-and-export-app-data-via-email-in-your-ios-app)

You have to implement -application:handleOpenURL: in AppDelegate

-(BOOL) application:(UIApplication *)application handleOpenURL:(NSURL *)url {
      //url is a local url of photo you've chosen, iOS copied it into document folder of your app
      //do what you want
}

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If you want to see how some app (Dropbox, GoogleDrive ...) can open some kind of files, you can see their info.plist files

Good luck