Apple Watch（WatchKit）中的手势识别 [英] Gesture recognition in Apple Watch (WatchKit)

问题描述

我正在寻找如何通过WatchKit SDK在Apple Watch应用中检测手势。在iOS中我们可以使用这样的代码：

I'm looking for how to detect gestures in an Apple Watch app, via the WatchKit SDK. In iOS we can use some code like this:

- (void)viewDidLoad
{
    ...
    UISwipeGestureRecognizer *swipeRightBlack = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(slideToRightWithGestureRecognizer:)];
    swipeRightBlack.direction = UISwipeGestureRecognizerDirectionRight;
    [self.viewBlack addGestureRecognizer:swipeRightBlack];
}

...但这在Apple Watch模拟器中不起作用。有没有办法使用WatchKit覆盖默认手势动作，或者只是在操作系统收到它们时识别它们？

...but this doesn't work in the Apple Watch simulator. Is there a way to override the default gesture actions using WatchKit, or just recognize them when the OS receives them?

推荐答案

watchOS 3为 WKGestureRecognizer 。

watchOS 3 adds third-party support for WKGestureRecognizer.

Apple还更新了他们的 WatchKit目录示例代码，包含一个WKInterfaceController手势示例，演示如何在Apple Watch上使用各种手势。

Apple has also updated their WatchKit Catalog sample code to include a WKInterfaceController gesture example demonstrating how to use various gestures on the Apple Watch.

这里是他们的代码中的一个片段显示了在Storyboard中配置的两个动作操作：

Here's a snippet from their code showing two of the actions for gestures configured in Storyboard:

class GestureDetailController : WKInterfaceController {
    @IBOutlet var tapGroup: WKInterfaceGroup!
    @IBOutlet var panGroup: WKInterfaceGroup!

    ...

    @IBAction func tapRecognized(_ sender: AnyObject) {
        tapGroup.setBackgroundColor(UIColor.green())
        scheduleReset()
    }

    @IBAction func panRecognized(_ sender: AnyObject) {
        if let panGesture = sender as? WKPanGestureRecognizer {
            panGroup.setBackgroundColor(UIColor.green())
            panLabel.setText("offset: \(NSStringFromCGPoint(panGesture.translationInObject()))")
            scheduleReset()
        }
    }

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