Siri Remote's Menu Button not exiting applicat

问题:

I'm overriding pressesBegan to receive Select presses. The Siri Remote's Menu Button does not exit my application when the focus is on a UIButton. If no UI element is focused the Menu Button works as expected.

How do I receive Menu Button presses when the focus is on a UIButton?

override func pressesBegan(presses: Set<UIPress>, withEvent event: UIPressesEvent?) {
    for item in presses {
        if item.type == .Select {
            print("Click")
        }
        if item.type == .Menu {
            print("Menu Button")
            super.pressesBegan(presses, withEvent: event)
        }
    }
}

回答1:

UIButton only responds to the .Select button on the remote. You can catch the menu button using a tap gesture recognizer. For example:

let tapRecognizer = UITapGestureRecognizer(target: self, action: #selector(ClassName.menuPressed()))
tapRecognizer.allowedPressTypes = [NSNumber(integer: UIPressType.Menu.rawValue)];
view.addGestureRecognizer(tapRecognizer)

Then implement:

func menuPressed() {
    // do something
}