DialogFragment中编辑文本中的Kotlin字符串不会保存在数据类中

interface TextChangeListener {
    fun onTextChanged(text: String)
}

class MyDialogFragment : DialogFragment() {
    private lateinit var textChangeListener: TextChangeListener

    override fun onAttach(context: Context) {
        super.onAttach(context)
        try {
            textChangeListener = context as TextChangeListener
        } catch (e: ClassCastException) {
            throw ClassCastException("$context must implement TextChangeListener")
        }
    }

    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
        val view = inflater.inflate(R.layout.fragment_dialog, container, false)
        val editText = view.findViewById<EditText>(R.id.edit_text)
        val saveButton = view.findViewById<Button>(R.id.save_button)

        saveButton.setOnClickListener {
            val text = editText.text.toString()
            textChangeListener.onTextChanged(text)
            dismiss()
        }

        return view
    }
}

class MyDataClass : TextChangeListener {
    private var text: String = ""

    override fun onTextChanged(text: String) {
        this.text = text
    }

    // 其他数据类的逻辑代码...
}