ios多線程操做（七）—— GCD延遲操做與一次性代碼

使用GCD函數能夠進行延時操做，該函數爲 dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(delayInSeconds * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{ });   如今咱們來分解一下參數 dispatch_time(DISPATCH_TIME_NOW, (in

>>阅读原文<<