使用 IQKeyBoardManager 时键盘 titleBarButton 的属性文本出现问题

Question

我在 Swift 中使用 IQKeyboardManager。我在我的日期选择器上添加了一个取消按钮。一切正常，但我遇到了取消按钮的属性文本未生效的问题。我究竟做错了什么？这是一个代码片段

cell.field.attributedPlaceholder = NSAttributedString(string: "Cancel",
            attributes: [.foregroundColor: UIColor.black,
               .font: UIFont.boldSystemFont(ofSize: 12)])

cell.field.keyboardToolbar.titleBarButton.setTarget(self,
        action:#selector(datePickerWasCanceled(sender:)))

这是当前结果的示例屏幕截图 -- 我原以为取消应该是黑色和粗体。

Answer 1

使用 UIBarButtonItem 而不是 attributedPlaceholder 并且space任一侧都灵活，这样您就可以将它放在工具栏的中间。

var items: [UIBarButtonItem] = []

let flexSpace = UIBarButtonItem(barButtonSystemItem: .flexibleSpace, target: nil, action: nil)
let cancel: UIBarButtonItem = UIBarButtonItem(title: "Cancel", style: .done, target: self, action: #selector(self.datePickerWasCanceled))
cancel.setTitleTextAttributes([
  NSAttributedStringKey.font: UIFont.boldSystemFont(ofSize: 17.0),
  NSAttributedStringKey.foregroundColor: UIColor.blue], for: .normal)

items.append(flexSpace)
items.append(cancel)
items.append(flexSpace)

cell.field.keyboardToolbar.items = items
cell.field.keyboardToolbar.sizeToFit()


@objc func datePickerWasCanceled() {
  cell.field.resignFirstResponder()
}

Answer 2

cell.field.attributedPlaceholder = NSAttributedString(string: "Cancel") cell.field.keyboardToolbar.titleBarButton.titleFont = UIFont.boldSystemFont(ofSize: 17.0) cell.field.keyboardToolbar.titleBarButton.selectableTitleColor = UIColor.black

cell.field.keyboardToolbar.titleBarButton.setTarget(self, action:#selector(datePickerDidCancel(sender:))

使用 IQKeyBoardManager 时键盘 titleBarButton 的属性文本出现问题

problem with attributed text for keyboard titleBarButton when using IQKeyBoardManager

ios

swift

iqkeyboardmanager