在IOS中如何通过gcd延迟后调用方法？ [重复]

3 回答

• 2

  是的你可以，

  斯威夫特3，斯威夫特4

  DispatchQueue.main.asyncAfter(deadline: .now() + 2.0) {
      <# YOUR CODE HERE #>
  }
  

  斯威夫特2

  dispatch_after(dispatch_time(DISPATCH_TIME_NOW, Int64(2.0 * Double(NSEC_PER_SEC))), dispatch_get_main_queue()) { () -> Void in
          <# YOUR CODE HERE #>
  }
  

  目标C.

  dispatch_time_t popTime = dispatch_time(DISPATCH_TIME_NOW, 2 * NSEC_PER_SEC);
      dispatch_after(popTime, dispatch_get_main_queue(), ^(void){
          <# YOUR CODE HERE #>
      });
  

  回复于 2024-05-15T18:56:27+08:00
• 1

  是的，我们可以使用以下代码添加延迟来执行GCD

  dispatch_after(dispatch_time(DISPATCH_TIME_NOW, 10 * NSEC_PER_SEC), dispatch_get_main_queue(), ^{
   // Do you work over here
  });
  

  希望这会帮助你 .

  回复于 2024-05-15T18:56:27+08:00
• 8

  dispatch_time_t deferTime = 2.0f;
  dispatch_after(deferTime, dispatch_get_main_queue(), ^{
  //call you method here
  });
  

  回复于 2024-05-15T18:56:27+08:00