ios - 当输入语言为 RTL/Arabic 时，如何防止 UITextfield 更改对齐方式？

Question

应用语言为英文，左图为UITextfield s内容左对齐..这很正常，但是当用户选择RTL/阿拉伯语输入语言时，字段对齐方式会自动翻转，如何不考虑输入语言方向强制左对齐？

编辑:

我试过了，并不能解决问题

    let _beginningOfDocument = fieldPassword!.beginningOfDocument
    let _endOfDocument = fieldPassword!.endOfDocument

    fieldPassword!.setBaseWritingDirection(.leftToRight, for: fieldPassword!.textRange(from: _beginningOfDocument , to: _endOfDocument )! )

Answer 1

老实说，我尝试了所有这些，但对我不起作用，因为它与 View 层次结构有关。欲了解更多信息，您可以阅读此 note

Note iOS applies appearance changes when a view enters a window, it doesn’t change the appearance of a view that’s already in a window. To change the appearance of a view that’s currently in a window, remove the view from the view hierarchy and then put it back.

所以试试这个，它对我有用:

extension UITextField {
   open override func awakeFromNib() {
    super.awakeFromNib()
    if Utilities.getCurrentLanguage() == "ar" {
        if textAlignment == .natural {
            self.textAlignment = .right
        }
      }
   }
 }

顺便说一句，“Utilities.getCurrentLanguage()”是一个获取当前语言的函数。