如何在Android / Kotlin中使用OnChange扩展隐藏碎片中的键盘

<EditText
    android:id="@+id/editText"
    ... />

val editText = view.findViewById<EditText>(R.id.editText)
editText.addTextChangedListener(object : TextWatcher {
    override fun beforeTextChanged(s: CharSequence?, start: Int, count: Int, after: Int) {
        // 在文本改变之前执行的操作
    }

    override fun onTextChanged(s: CharSequence?, start: Int, before: Int, count: Int) {
        // 在文本改变时执行的操作
    }

    override fun afterTextChanged(s: Editable?) {
        // 在文本改变之后执行的操作
        hideKeyboard() // 调用隐藏键盘的方法
    }
})

fun Fragment.hideKeyboard() {
    val inputMethodManager = requireContext().getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager
    val currentFocus = activity?.currentFocus
    if (currentFocus != null) {
        inputMethodManager.hideSoftInputFromWindow(currentFocus.windowToken, 0)
    }
}