ios - 队列中的所有操作完成后立即释放 NSOperationQueue

Question

我想在所有正在进行的操作都执行完毕后释放 NSOperationQueue。到目前为止，我已经在下面编写了代码，但据我所知，waitUntilAllOperationsAreFinished 是异步调用，无法阻止我的 operationQueue 变为 nil。

- (void)deallocOperationQueue
{
    [operationQueue waitUntilAllOperationsAreFinished];
    operationQueue = nil;
}

Answer 1

引用 Avi

You don't need to wait for all operations to finish. Just set operationQueue to nil when you're done with it. If the queue still has operations, nothing happens to them; they will still complete.

- (void)deallocOperationQueue
{
    operationQueue = nil;
}

我已经测试了代码并确认所述行为确实发生了。