Question

How can I have a static dictionary placed in app delegate that all classes can use?

Answer 1

You could use NSUserDefaults, as you can access them fraom everywhere in your application.

You set the value as a regular dictionary, the only difference is that you should force-save them:

defaults = [NSUserDefaults standardUserDefaults];
[defaults setObject:@"someValue" forKey:@"someKey"];
[defaults synchronize];//FORCESAVE

You access them also in a dictionary manner:

[defaults objectForKey:@"someKey"]; //will give you someValue