數字皇冠旋轉的增量/減量值

Question

我能夠獲得數字皇冠的事件，並且我想要降低旋轉一個小皇冠時調用多個事件的速度。所以，我想要實現如果在任何方向上旋轉大約30度，我會增加或減少數值。我怎樣才能做到這一點？

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

Answer 1

爲了實現watchOS預期的結果，你需要管理額外的變量，告訴我們關於數字樹冠在某些特定角度的旋轉一樣，

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 
    } 
}