铃声选择器 - 单选按钮集

Ringtone picker - radio button set(铃声选择器 - 单选按钮集)

问题描述

我可以成功调出铃声选择器并使用以下代码获取结果 uri...

I can successfully bring up a ringtone picker and get a resultant uri with the following code...

    selsound_button.setOnClickListener(new OnClickListener()
    {   
        public void onClick(View arg0)
        {
            Intent intent = new Intent(RingtoneManager.ACTION_RINGTONE_PICKER);
            intent.putExtra(RingtoneManager.EXTRA_RINGTONE_TITLE, "Select ringtone for notifications:");
            intent.putExtra(RingtoneManager.EXTRA_RINGTONE_SHOW_SILENT, false);
            intent.putExtra(RingtoneManager.EXTRA_RINGTONE_SHOW_DEFAULT, true);
            intent.putExtra(RingtoneManager.EXTRA_RINGTONE_TYPE,RingtoneManager.TYPE_ALARM);
            startActivityForResult( intent, 999);   
        }
    });

...但我没有弄清楚如何执行以下操作:

...but I have failed to work out how to do the following:

鉴于我已经知道当前的 uri，我希望告诉选择器它当前已被选中，以便它可以突出显示正确的单选按钮.目前，在我按下其中一个之前，根本没有选择任何单选按钮.

Given that I already know the current uri, I wish to tell the picker that this is currently selected so that it can have the correct radio button highlighted. At the moment none of the radiobuttons are selected at all until I press one one of them.

推荐答案

需要添加

   intent.putExtra(RingtoneManager.EXTRA_RINGTONE_EXISTING_URI, currenturi);

设置单选按钮

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