Thank you Nick, that works perfectly!!
Op May 8, 2013, om 5:20 PM heeft Nick Zitzmann <n...@chronosnet.com> het volgende geschreven: > > On May 8, 2013, at 8:51 AM, Diederik Meijer | Ten Horses > <diede...@tenhorses.com> wrote: > >> I am implementing a UIRefreshControl in an app that runs on iOS 5.1 or >> higher and want to test if the device is running iOS 6, because this is an >> iOS 6 feature. >> >> I'd like to avoid detecting the iOS version in runtime and use a >> respondsToSelector route instead. >> >> I am getting no compiler error on this codeline, so my first guess is this >> works, but I'd like to check.. >> >> if ([self respondsToSelector:@selector(setRefreshControl)]) [self >> setUpRefreshControl]; >> >> Has anybody done this and van they tell me if the above works fine, or, >> alternatively, how to do this? > > If your intent is to check to see if the UIRefreshControl class exists at > runtime, then do this instead: > > if (NSClassFromString(@"UIRefreshControl")) > > The line you wrote above checks to see if the method "setRefreshControl" > exists inside the method's own class. I doubt that's your intention, > especially since set-methods typically take an argument, and if the method > takes an argument, then you would need to use "setRefreshControl:" instead. > > Nick Zitzmann > <http://www.chronosnet.com/> > > _______________________________________________ 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
