避免按下肯定按钮时 AlertDialog 自动关闭

Question

我试图阻止 siteListFragment.kt 中 else 语句中的对话框自动关闭，但尽管我做出了努力，对话框还是会自行关闭。

这是我的代码： siteListFragment.kt

override fun showAddSiteDialog() {
        val view: View = LayoutInflater.from(context).inflate(R.layout.dialog_site_add, null)
        DialogService.showWithView(
            requireContext(),
            DialogService.DialogType.INFO,
            false,
            getString(R.string.add_site),
            view,
            null,
            DialogService.TextWithCallback(getString(R.string.dialog_negative_cancel)){
                DialogService.dismiss()
            },
            DialogService.TextWithCallback(getString(R.string.dialog_positive_add)){
                GlobalScope.launch {
                    val editText = view.findViewById<EditText>(R.id.site_name_add)

                    val enteredText = editText.text.toString()
                    withContext(Dispatchers.Main) {
                        if (siteListPresenter.addSite(enteredText)) {
                            DialogService.dismiss()
                        } 
                        
                        //here
                        else {
                            editText.error = getString(R.string.network_update_error_empty_name_message)
                        }
                    }
                }
            }
        )
    }

DialogService.kt

    private var dialog: AlertDialog? = null
    var builder:  AlertDialog.Builder? = null

private fun create(
        context: Context,
        dialogType: DialogType,
        cancelable: Boolean,
        title: String,
        message: String?
        ) {
        builder = AlertDialog.Builder(context, R.style.CreativePodDialog)
        dialog = builder!!.create()
        builder!!.apply {
            setTitle(title)
            setIcon(getIcon(dialogType))

            if (message != null && message != "") setMessage(message)
            setCancelable(cancelable)
        }
    }

fun showWithView(
        context: Context,
        dialogType: DialogType,
        cancelable: Boolean,
        title: String,
        view: View? = null,
        negativeButton: TextWithCallback?,
        neutralButton: TextWithCallback?,
        positiveButton: TextWithCallback?,
    ) {
        create(context, dialogType, cancelable, title, null)

        builder!!.apply {
            setView(view)
            if (positiveButton != null)
                setPositiveButton(positiveButton.text) { _, _ ->
                    positiveButton.callback.invoke()
                }
            if (negativeButton != null)
                setNegativeButton(negativeButton.text) { _, _ ->
                    negativeButton.callback.invoke()
                }
            if (neutralButton != null)
                setNeutralButton(neutralButton.text) { _, _ ->
                    neutralButton.callback.invoke()
                }
        }.show()
    }

我尝试将对话框设置为不可取消，这允许您在对话框外部按下而不将其关闭，但不会影响按钮。我还尝试将对话框肯定按钮回调设置为 null，默认为关闭。任何帮助将不胜感激。

Answer 1

AlertDialog

默认情况下有

View.onClickListener

，一旦用户单击肯定或否定按钮，就会自动关闭对话框。

为了防止这种情况发生，您必须自己覆盖监听器。

Button btPositive = alertDialog.getButton(AlertDialog.BUTTON_POSITIVE);
btPositive.setOnClickListener(new View.OnClickListener() { 
    @Override
    public void onClick(View v) {
        // do something here
        // dialog won't be dismissed now!
    }
});

您可以在 DialogService.TextWithCallback 函数中传递

null

回调，使其按预期工作。