Can I insert a android:defaultValue trait for RingtonePreference, via XML?
问题 Is there a way to add a default value in a RingtonePreference, via XML? For example, here's what my preference.xml looks like. <RingtonePreference android:key="alarm" android:title="Alarm" android:name="Alarm" android:summary="Select an alarm" android:ringtoneType="alarm" android:showDefault="true" /> If possible, I'd like to set the RingtonePreference to the default ringtone, like this: <RingtonePreference android:key="alarm" android:title="Alarm" android:name="Alarm" android:summary="Select