快速观察多个NSKeyObservingKeyValueoptions

Question

如何在swift中观察多个NSKeyObservingKeyValueoptions

 self.avplayerItem.addObserver(self, forKeyPath: "status", options:[.Initial | .New], context: nil)

我收到类似

的错误

错误

否＆＃39; |＆＃39;候选人产生预期的上下文结果类型＆＃39; NSKeyValueObservingOptions＆＃39;

Answer 1

更改

 self.avplayerItem.addObserver(self, forKeyPath: "status", options:[.Initial | .New], context: nil)

为：

 self.avplayerItem.addObserver(self, forKeyPath: "status", options:[.Initial, .New], context: nil)