In my projects, if I need an object which can be accessed globally, we create a Singleton manager object for it. And most of the time, it has to do with Settings.
The following code demonstrates a safe way to declare singleton objects:
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+ (SettingsManager *)sharedManager { static dispatch_once_t onceToken; static SettingsManager *manager; dispatch_once(&onceToken, ^{ if (manager == nil) { manager = [[SettingsManager alloc] init]; } }); return manager; } |
