在Today Extension（iOS）中设置NSUserDefaults

Question

I know that I can set NSUserDefaults within the containing app, but I want to have a button within an iOS today extension that changes between set titles when pressed.

I've tried two options already:

[[NSUserDefaults alloc] initWithSuiteName:]

and I'm already using:

[prefs doubleForKey:key];

to retrieve what has been set within the containing app.

The problem is using

[prefs setDouble:value forKey:key];

within the Today extension freezes.

I've been looking through the documentation for anything that says that setting NSUserDefaults is not available within a Today extension, but no luck.

Any ideas?

Answer 1

Today extensions can share NSUserDefaults !
But you need to set it up the right way ...