如何获得单选警报对话框的选定项目? [英] How to get selected item of a singlechoice Alert Dialog?

问题描述

我有这段代码来显示带有单选(单选)选项的对话框.

I have this code to show a dialog with singlechoice(radio) options.

AlertDialog ad = new AlertDialog.Builder(this)
.setCancelable(false)
.setIcon(R.drawable.alert_dialog_icon)
.setTitle(R.string.choose_one)
.setSingleChoiceItems(seq, pos,null)
.setPositiveButton( R.string.ok, new DialogInterface.OnClickListener() { 
  public void onClick( DialogInterface dialog, int whichButton) 
  { 
    // dialog dismissed
  } 
 }).create();

如何获得已选择的选择?

How do I get the choice that has been selected?

推荐答案

我知道这是一篇老文章，但是我只是偶然发现，发现此解决方案似乎比这里发布的内容更为简单.

I know this is an old post, but i just came across it, and found that this solution seems at bit more simple that whats been posted here.

>

您可以这样做:

You can just do like this:

在对话框的肯定按钮上的onClick()处理程序中，添加以下代码:

In your onClick() handler on the dialog positive button, add the following code:

ListView lw = ((AlertDialog)dialog).getListView();
Object checkedItem = lw.getAdapter().getItem(lw.getCheckedItemPosition());

注意，如果您未选择任何选项，它将崩溃，您必须在此处添加对勾，然后才能使用if(lw.getCheckedItemCount() > 0)

Note that if you haven't selected any option it will crash you have to add a check here before getting the checkedItem with if(lw.getCheckedItemCount() > 0)

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