ios – 如何检测Xcode UI测试中是否显示键盘

我正在新的 Xcode 7 UI测试框架下用swift编写UI文本.
要求是测试系统键盘是否显示在应用程序中.
谁能给我一个如何做到的线索？谢谢

解决方法

添加两个观察者

NSNotificationCenter.defaultCenter().addobserver(self,selector: "keyboardVisible:",name: UIKeyboardDidShowNotification,object: nil)
NSNotificationCenter.defaultCenter().addobserver(self,selector: "keyboardHidden:",name: UIKeyboardDidHideNotification,object: nil)

func keyboardVisible(notif: NSNotification) {
    print("keyboardVisible")
}

func keyboardHidden(notif: NSNotification) {
    print("keyboardHidden")
}

每当键盘可见时,都会调用keyboardVisible,每当键盘被隐藏时,都会调用keyboardHidden.