On Dec 1, 2015, at 12:58 , Carl Hoefs <newsli...@autonomy.caltech.edu> wrote:
> available to all classes via [[UIApplication sharedApplication] delegate]. > Are there any drawbacks to this? I don’t find this practice very objectionable, but the drawback is that '[[UIApplication sharedApplication] delegate]’ has the wrong class, so you usually end up writing some sort of global function to get it pre-cast. In that case, you may as well use a different object, make it a local static variable in a class implementation, and write a static method (“[MyContextCache sharedContextCache]”) to get it. Don’t forget to use dispatch_once to create the singleton. You may not have any thread safety concerns right now, but you might easily do so later. _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
