appcode-live-templates-gcd.m

// abbrevation: dispatch_once
// description: GCD: dispatch_once
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
    $END$
});

// abbrevation: dispatch_after
// description: GCD: dispatch_after
double delayInSeconds = 2.0;
dispatch_time_t popTime = dispatch_time(DISPATCH_TIME_NOW, (int64_t)(delayInSeconds * NSEC_PER_SEC));
dispatch_after(popTime, dispatch_get_main_queue(), ^(void){
    $END$
});