How containerURLForSecurityApplicationGroupIdentifier in NSFileManager works on iOS 7

Question

I want to share file between multiple applications in iOS environment.

I\'m already using the UIDocumentInteractionController mechanism to achieve the purpose but I\

Answer 1

You probably have not enabled App Groups for your app. You will have to create a Identifier for your App Group in Member Center on the Apple developer site.

Answer 2

I just started working with this today to play with iOS 8 App Extensions. I got it to initially work (returning a real directory and not nil) by prepending my developer team ID to the identifier.

NSURL* containerURL = [fileManager containerURLForSecurityApplicationGroupIdentifier:@"YOUR_TEAM_ID.com.example.AppFileSharing"];