UItextfield不呈现背景色

Question

When UITextfield is visible on viewdidload method, It's background color is visible. However, If the text field is kept hidden until some event occurs, It's background color is not visible. In the image, I have given text field white color background with an alpha value. In first case color is visible, however in the second case, background color seems to be the clear color.

These text fields are inside UIStackView.

Answer 1

When textfield is in stackView call

  self.field1.isHidden = false

  self.field1.setNeedsDisplay()