ios - 辅助功能辅助功能递减()没有被调用

Question

为什么在执行适当的手势时在我的自定义 UITextView 中不调用 accessibilityDecrement() 和 accessibilityIncrement()？

class CustomTextView: UITextView  {

   required init?(coder aDecoder: NSCoder) {
      super.init(coder: aDecoder)
      accessibilityTraits = accessibilityTraits | UIAccessibilityTraitAdjustable
   }

   override func accessibilityDecrement() {
      print("Decrement")
   }

   override func accessibilityIncrement() {
      print("Increment")
   }
}

Answer 1

尝试:

isAccessibilityElement = true

accessibilityTraits = super.accessibilityTraits | UIAccessibilityTraitAdjustable