ios - Apple Watch滚动条标签

是否可以像这样在Apple Watch应用中添加滚动报价文本视图？

最佳答案

这是不可能的。但有一个解决方案...

class InterfaceController: WKInterfaceController {

@IBOutlet var label: WKInterfaceLabel!

let fullText = "i am  a long text and i am scrollable horizontally lol."
var scrolledText: String?
var timer: NSTimer?

override func awakeWithContext(context: AnyObject?) {
    super.awakeWithContext(context)

    scrolledText = fullText
    timer = NSTimer.scheduledTimerWithTimeInterval(0.2, target: self, selector: Selector("timerDidFire:"), userInfo: nil, repeats: true)
    label.setText(scrolledText)
}

override func didDeactivate() {
    timer?.invalidate()
}

func timerDidFire(timer: NSTimer) {
    if scrolledText!.characters.count > 1 {
        scrolledText!.removeAtIndex(scrolledText!.startIndex)
    } else {
        scrolledText = fullText
    }
    label.setText(scrolledText)

    }

}