如何将多个对象传递到延迟方法？ [英] How can I pass multiple objects to a delayed method?

问题描述

如何传递

- （void）explosionFromPoint：（CGPoint）explosionSprite：（CCSprite *）sprite;

[self performSelector：@selector在这里）withObject：nil afterDelay：3]; ？

您不能将整个选择器放在 @selector（）和 withObject 首先只允许一个对象被传递，也不知道如何使用它。

You cant put the whole selector inside the @selector(), and withObjectfirst of all only allows one object to be passed over, and neither do I understand how to use it.

如何在延迟后传递带有对象的方法？
我也尝试了一个解决方法，其中我调用

How can I pass a method with objects after a delay? I also tried a workaround where I call

[self performSelector：@selector（waitExplosion）withObject：nil afterDelay：3];
然后运行操作本身， [self explosionFromPoint：c0TileCoord withSprite：bomb];
，但这是一个非常糟糕的方法，因为我必须重新声明的变量，它只是坏。

[self performSelector:@selector(waitExplosion) withObject:nil afterDelay:3]; which then runs the action itself, [self explosionFromPoint:c0TileCoord withSprite:bomb]; , but this is a really bad way to do it as I have to re-declare the variables and it's just bad.

如何在延迟后传递对象的方法？

How can I pass a method with objects after a delay?

推荐答案

p>您可以使用dispatch_after。

You could use 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){
    [self explosionFromPoint:aPoint withSprite:sprite]; 
});

其中aPoint和sprite在块外定义。

Where aPoint and sprite are defined outside of your block.

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