xcode - 如何更新实时 NSSlider 值？

Question

我有带有音量值的 slider 。我需要在现场改变音量。我的代码有什么问题？

@IBOutlet weak var volumeSliderCurr: NSSlider!

@IBAction func volumeSlider(sender: AnyObject) {
    var event: NSEvent = NSApplication.sharedApplication().currentEvent!
    mouseUp(event)
}

override func mouseUp(theEvent: NSEvent) {
    super.mouseUp(theEvent)
    audioPlayer.volume = volumeSliderCurr.floatValue
    currVolume = volumeSliderCurr.floatValue
}

Answer 1

如果您在 Interface Builder 的属性中设置 Continuous，您将获得 slider 值的永久更新: