iOS可以layer.cornerRadius用来制作一个回合UIButton.
layer.cornerRadius
UIButton
是否WKInterfaceButton有这个属性？
WKInterfaceButton
如果没有,我怎么能WKInterfaceButton进入WatchKit.
WatchKit
watchkit wkinterfacebutton watchos-2
watchkit ×1
watchos-2 ×1
wkinterfacebutton ×1