– 無い情報1


– 無い情報2




@State var spacing: CGFloat = 0
HStack(alignment: .bottom, spacing: spacing)


HStackは横並びを成立させるブロックです。動作する度にTexField内に文字があるか判定して、文字がある場合は 下線を赤色にするプログラムをしています。文字がない場合は黒色です。



let fill = CGRect(x: -rect.size.width, y: 0, width: rect.size.width, height: rect.size.height)








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