#Singleton

I was looking through the Apple documentation and discovered their take on a singleton class that I thought I should share here: static MyGizmoClass *sharedGizmoManager = nil; + (MyGizmoClass*)sharedManager { if (sharedGizmoManager == nil) { sharedGizmoManager = [[super allocWithZone:NULL] init]; } return sharedGizmoManager; } + (id)allocWithZone:(NSZone *)zone { return [[self sharedManager] retain]; } - (id)copyWithZone:(NSZone *)zone { return self; } - (id)retain {…