Launcher3: Use SelectorWithWidgetPreference for icon pack's selection

RadioPreference is deprecated, so instead of using our own impl, let's
use the official alternative of it.

Author: nullxception

res/layout/preference_widget_radiobutton.xml

@@ -33,6 +33,8 @@
 
 import com.android.launcher3.customization.IconDatabase;
 
+import com.android.settingslib.widget.SelectorWithWidgetPreference;
+
 import java.util.ArrayList;
 import java.util.LinkedHashSet;
 import java.util.List;
@@ -88,14 +90,14 @@ public void onPause() {
     }
 
     @Override
-    protected List<RadioPreference> getRadioPreferences(Context context) {
+    protected List<SelectorWithWidgetPreference> getPreferences(Context context) {
         final String currentIconPack = IconDatabase.getGlobal(context);
-        final List<RadioPreference> prefsList = new ArrayList<>();
+        final List<SelectorWithWidgetPreference> prefsList = new ArrayList<>();
         final Set<IconPackInfo> iconPacks = getAvailableIconPacks(context);
 
         for (final IconPackInfo entry : iconPacks) {
             final boolean isCurrent = currentIconPack.equals(entry.pkgName);
-            final RadioPreference pref = buildPreference(context,
+            final SelectorWithWidgetPreference pref = buildPreference(context,
                     entry.pkgName, entry.label, isCurrent);
             prefsList.add(pref);
 
@@ -137,9 +139,9 @@ private Set<IconPackInfo> getAvailableIconPacks(Context context) {
         return availablePacks;
     }
 
-    private RadioPreference buildPreference(Context context, String pkgName,
+    private SelectorWithWidgetPreference buildPreference(Context context, String pkgName,
             String label, boolean isChecked) {
-        final RadioPreference pref = new RadioPreference(context);
+        final SelectorWithWidgetPreference pref = new SelectorWithWidgetPreference(context);
         pref.setKey(pkgName);
         pref.setTitle(label);
         pref.setPersistent(false);

src/com/android/launcher3/icons/pack/IconPackSettingsFragment.java

@@ -24,14 +24,16 @@
 import androidx.preference.PreferenceManager;
 import androidx.preference.PreferenceScreen;
 
+import com.android.settingslib.widget.SelectorWithWidgetPreference;
+
 import java.util.List;
 
 public abstract class RadioSettingsFragment extends PreferenceFragment implements
         Preference.OnPreferenceClickListener {
-    private RadioPreference selectedPreference = null;
+    private SelectorWithWidgetPreference selectedPreference = null;
     private RadioHeaderPreference headerPref = null;
 
-    protected abstract List<RadioPreference> getRadioPreferences(Context context);
+    protected abstract List<SelectorWithWidgetPreference> getPreferences(Context context);
 
     @Override
     public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
@@ -44,19 +46,19 @@ public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
             screen.addPreference(headerPref);
         }
 
-        loadRadioPreferences(context, screen, null);
+        loadPreferences(context, screen, null);
         setPreferenceScreen(screen);
     }
 
     @Override
     public boolean onPreferenceClick(Preference preference) {
-        if (preference instanceof RadioPreference) {
+        if (preference instanceof SelectorWithWidgetPreference) {
             onSelected(preference.getKey());
 
             if (selectedPreference != null) {
                 selectedPreference.setChecked(false);
             }
-            selectedPreference = (RadioPreference) preference;
+            selectedPreference = (SelectorWithWidgetPreference) preference;
             selectedPreference.setChecked(true);
             return true;
         } else {
@@ -75,7 +77,7 @@ protected RadioHeaderPreference getHeader(Context context) {
         return null;
     }
 
-    protected final void setSelectedPreference(RadioPreference preference) {
+    protected final void setSelectedPreference(SelectorWithWidgetPreference preference) {
         selectedPreference = preference;
     }
 
@@ -105,23 +107,23 @@ protected void reloadPreferences() {
         final int numPreferences = screen.getPreferenceCount();
         for (int i = numPreferences - 1; i >= 0; i--) {
             final Preference p = screen.getPreference(i);
-            if (p instanceof RadioPreference) {
+            if (p instanceof SelectorWithWidgetPreference) {
                 screen.removePreference(p);
             }
         }
 
         // Add radio preferences
         final PreferenceManager prefManager = getPreferenceManager();
         final Context context = prefManager.getContext();
-        loadRadioPreferences(context, screen, currentKey);
+        loadPreferences(context, screen, currentKey);
     }
 
-    private void loadRadioPreferences(Context context, PreferenceScreen screen,
+    private void loadPreferences(Context context, PreferenceScreen screen,
             String currentKey) {
         boolean hasSetNewCurrent = false;
 
-        final List<RadioPreference> prefs = getRadioPreferences(context);
-        for (final RadioPreference p : prefs) {
+        final List<SelectorWithWidgetPreference> prefs = getPreferences(context);
+        for (final SelectorWithWidgetPreference p : prefs) {
             if (currentKey != null && currentKey.equals(p.getKey())) {
                 p.setChecked(true);
                 selectedPreference = p;