数字冠旋转的增量/减量值

Question

我能够获得数字皇冠的事件，我想降低速度，因为旋转一个小皇冠会调用多个事件。所以，我希望实现如果在任何方向上旋转大约30度，我将增加或减少该值。我怎么能这样做？

func crownDidRotate(_ crownSequencer: WKCrownSequencer?, rotationalDelta: Double) {
if value > 0 {
   myValue = myValue + 1
} else if value < 0 {
   myValue = myValue - 1
}
}

Answer 1

要在watchOS中实现预期效果，您需要管理额外的变量，告诉我们Digital Crown以某个特定角度旋转，例如，

let expectedMoveDelta = 0.523599 //Here, current delta value = 30° Degree, Set delta value according requirement.
var crownRotationalDelta = 0.0 

func crownDidRotate(_ crownSequencer: WKCrownSequencer?, rotationalDelta: Double) {

     crownRotationalDelta  += rotationalDelta
     if crownRotationalDelta > expectedMoveDelta { //Crown rotating in clock-wise direction 
         myValue = myValue + 1
         crownRotationalDelta = 0.0 
     } else if crownRotationalDelta < -expectedMoveDelta { //Crown rotating in anti clock-wise direction 
         myValue = myValue - 1
         crownRotationalDelta = 0.0 
     }
}