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tomassliz/Objective-C tricks

Last active December 24, 2015 05:49
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Better singleton shared instance creation with use of GCD in Objective-C.
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Objective-C tricks
+ (instancetype)sharedInstance {
static TSClass *sharedInstance = nil;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
sharedInstance = [[self alloc] init];
});
return sharedInstance;
}
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