- (void)unisversalButtonAcrion:(UIButton *)sender { [[self class] cancelPreviousPerformRequestsWithTarget:self selector:@selector(todoSomething:) object:sender]; [self performSelector:@selector(todoSomething:) withObject:sender afterDelay:0.3f]; } - (void)todoSomething:(UIButton *)sender { if (self.bindIngBankCarBlock) { self.bindIngBankCarBlock(); } }