如何从铃声偏好设置中读取铃声

Question

i tried below code. But i'm not able to read the ring tone from ringtone preferences.

        <RingtonePreference 
            android:title="@string/RING_TONE_SETTING" 
            android:summary="@string/RING_TONE_SETTING_DESCRIPTION" 
            android:ringtoneType="notification"
            android:showSilent="true"
            android:showDefault="true"
            android:key="prefnotificationTone"/>

This is how i'm reading,

 SharedPreferences preference = PreferenceManager.getDefaultSharedPreferences(this);
    String strRingtonePreference = preference.getString("prefnotificationTone", "DEFAULT_SOUND");        

    Uri notification = Uri.parse(strRingtonePreference);

    mMPlayer = MediaPlayer.create(getApplicationContext(), notification);
    mMPlayer.start();

I'm getting DEFAULT_SOUND always.

Answer 1

将以下属性添加到XML的首选项中：

android:persistent="true"

Answer 2

SharedPreferences preference = PreferenceManager.getDefaultSharedPreferences(context);
String strRingtonePreference = preference.getString("ring_tone_pref", "DEFAULT_SOUND");        

You just got the uri of the ringtone above. you have to parse it to url and then get the corresponding ringtone from system.

defaultRingtoneUri = Uri.parse(strRingtonePreference);
    defaultRingtone = RingtoneManager.getRingtone(this, defaultRingtoneUri);

Hope this helps.