是否可以使dispatch_queue_t为空? [英] Is it possible to make dispatch_queue_t empty?

问题描述

我找不到有关它的任何信息.我的应用程序中有一个dispatch_queue_t，我在其中放置了一些任务.但是这些任务需要一些时间，而且有时不应该再调用它们，因此我想清理队列.有可能吗?

I cannot find any information about it. I have a dispatch_queue_t in my application where I put some tasks to do. But these tasks take some time and it happens that sometimes they shouldn't be called any more so I would like to clean out queue. Is it possible?

推荐答案

使用NSOperationQueue来实现这些功能-更加方便.将操作添加到队列后，您可以取消它们，甚至在需要时甚至取消所有待处理的操作.

Use NSOperationQueue for these capabilities - much more convenient. After adding operations to a queue, you can cancel them and even cancel all pending operations if needed.

这是一个入门的好教程: http://www.raywenderlich.com/19788/how-to -use-nsoperations和nsoperationqueues

Here's a good tutorial to get you started: http://www.raywenderlich.com/19788/how-to-use-nsoperations-and-nsoperationqueues

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