Given an NSObject instance is there a way to list all the selector that has been scheduled for that object with the performSelector:withObject:afterDelay: method (or related)?
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没有，您需要自己跟踪呼叫，或使用您自己的 NSTimer 发送延迟消息。
如果您尝试取消特定选择器或目标的消息，您可以使用cancelPreviousPerformRequestsWithTarget:selector:object
于 2013-10-01T10:53:14.863 回答