如何在自定義對話框片段中使用點擊監聽器？

Question

class CustomDialogFragment: DialogFragment(){ 

override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
    super.onViewCreated(view, savedInstanceState)
        
    val dialogview = LayoutInflater.from(requireActivity()).inflate(R.layout.customdialog, null)
    val oktextview = dialogview.findViewById<TextView>(R.id.YES)
        
    oktextview.setOnClickListener {
            Log.i("tag","printif it works") //doesn't print
    }
}

override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
    return activity?.let {
        val builder = AlertDialog.Builder(it)
        val inflater = requireActivity().layoutInflater
        builder.setView(inflater.inflate(R.layout.customdialog, null))
        builder.create()
    } ?: throw IllegalStateException("Activity cannot be null")
  }
}

我正在使用自定義對話框，並想將setOnClickListener用於自定義對話框的組件。

我在onViewCreated中做了它，但沒有用。

請問如何在自定義對話框中為TextView實現setOnClickListener ？

Answer 1

您正在為 onViewCreated 方法創建一個不同的視圖實例。 這意味着在不向用戶顯示的視圖上設置了點擊偵聽器。

您可以通過以下方式實現您想要的：

override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
    return activity?.let {
        val builder = AlertDialog.Builder(it)
        val inflater = requireActivity().layoutInflater
        builder.setView(inflater.inflate(R.layout.customdialog, null))
        val dialog = builder.create()
        val oktextview = dialog.findViewById<TextView>(R.id.YES)
    
        oktextview.setOnClickListener {
            Log.i("tag","printif it works") //doesn't print
        }

        dialog
    } ?: throw IllegalStateException("Activity cannot be null")
}

Answer 2

https://developer.android.com/reference/android/app/DialogFragment#alert-dialog

---

根據文檔，您不應實施 onCreateView() 只需使用 onCreateDialog

Answer 3

在 onCreateView() 方法中調用它而不是 onViewCreated() oktextview.setOnClickListener(view -> dismiss());