Uninstalling app not delete app group data .Do I have to remove app group container and it's content manually?

Question

I created a Today Extension that is introduced in iOS 8 first time. To share data between Today extension and it's container App, I defined an app group, and bind them to this group. (Actually I added an embedded framework also to re-use code in both side.)

Details of this method is described in Apple's document.

I created some core data model and store it as sqlite on group container. Then everything works as I thought.

However, when I uninstall container app, There are still shared container and it's content on my iPhone. I think when last member of app group is uninstalled, this container should have to be deleted automatically. In my case, members of app group are shipped with just a single app, So, uninstalling this app should have to clear shared container.

Am I wrong?

ps. I could not find a way to delete this shared container as an user. Only developer who has rights to access app-group can remove this container with programming.

Vd

Answer 1

In iOS8 beta 4, App group container is deleted automatically when the last app that is belongs to the group is uninstalled,

So, it was just a bug that is now fixed by Apple.

Vd

Not fixed here with Xcode 6 GM. Deleting app does not remove its app container data on the simulator. – Saragossa

Is there any documentation to back this up? – Footage

It is mentionned here developer.apple.com/documentation/foundation/nsfilemanager/… at the bottom – Wiltshire

Answer 2

As precised inside the documentation of containerURLForSecurityApplicationGroupIdentifier: (behavior is different whether you are on macOS or iOS)

Unlike in macOS, when all the apps in a given app group are removed from the device, the system detects this condition and removes the corresponding group directory as well.

So the answer to your question is no.

Wiltshire