Settings: Use List Preference for Dock speaker plays and Emergency tone

Change-Id: Ia899f2ba6d4663c2315ee35c093ca14cb26ae450

res/xml/sound_settings.xml

@@ -269,7 +269,7 @@
         android:order="-27"/>
 
     <!-- Dock speaker plays -->
-    <DropDownPreference
+    <ListPreference
         android:key="dock_audio_media"
         android:title="@string/dock_audio_media_title"
         android:summary="%s"
@@ -282,7 +282,7 @@
         android:order="-15"/>
 
     <!-- Emergency tone -->
-    <DropDownPreference
+    <ListPreference
         android:key="emergency_tone"
         android:title="@string/emergency_tone_title"
         android:summary="%s"

src/com/android/settings/notification/SettingPref.java

@@ -24,7 +24,7 @@ import android.provider.Settings.Global;
 import android.provider.Settings.Secure;
 import android.provider.Settings.System;
 
-import androidx.preference.DropDownPreference;
+import androidx.preference.ListPreference;
 import androidx.preference.Preference;
 import androidx.preference.Preference.OnPreferenceChangeListener;
 import androidx.preference.TwoStatePreference;
@@ -45,7 +45,7 @@ public class SettingPref {
     private final Uri mUri;
 
     protected TwoStatePreference mTwoState;
-    protected DropDownPreference mDropDown;
+    protected ListPreference mDropDown;
 
     public SettingPref(int type, String key, String setting, int def, int... values) {
         mType = type;
@@ -73,8 +73,8 @@ public class SettingPref {
         }
         if (p instanceof TwoStatePreference) {
             mTwoState = (TwoStatePreference) p;
-        } else if (p instanceof DropDownPreference) {
-            mDropDown = (DropDownPreference) p;
+        } else if (p instanceof ListPreference) {
+            mDropDown = (ListPreference) p;
             CharSequence[] entries = new CharSequence[mValues.length];
             CharSequence[] values = new CharSequence[mValues.length];
             for (int i = 0; i < mValues.length; i++) {