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Can someone explain what (AppDelegate *) in the following snippet means?
(AppDelegate *)[[UIApplication sharedApplication] delegate] iPad]
[[UIApplication sharedApplication] delegate]returns anid. So you can’t access e.g.windowproperty of it (because id object doesn’t have it).(AppDelegate *)statement causes to ‘convert’idtoAppDelegateobject, so you can access its components.It’s like having
NSObject *obj1;andNSString *obj2;– you can’t do-substringToIndex:withobj1…