Use listChoiceIndicatorSingle for locale dialog

app/src/main/java/org/tasks/dialogs/AlertDialogBuilder.java

@@ -83,7 +83,7 @@ public class AlertDialogBuilder {
     return this;
   }
 
-  AlertDialogBuilder setSingleChoiceItems(
+  public AlertDialogBuilder setSingleChoiceItems(
       List<String> strings, int selectedIndex, DialogInterface.OnClickListener onClickListener) {
     builder.setSingleChoiceItems(
         addDirectionality(strings.toArray(new String[0])),

app/src/main/java/org/tasks/locale/LocalePickerDialog.java

@@ -16,7 +16,6 @@ import org.tasks.injection.DialogFragmentComponent;
 import org.tasks.injection.ForActivity;
 import org.tasks.injection.InjectingDialogFragment;
 import org.tasks.themes.ThemeAccent;
-import org.tasks.ui.SingleCheckedArrayAdapter;
 
 public class LocalePickerDialog extends InjectingDialogFragment {
 
@@ -38,13 +37,11 @@ public class LocalePickerDialog extends InjectingDialogFragment {
     for (String override : getResources().getStringArray(R.array.localization)) {
       locales.add(locale.withLanguage(override));
     }
-    final List<String> display = transform(locales, Locale::getDisplayName);
+    List<String> display = transform(locales, Locale::getDisplayName);
-    SingleCheckedArrayAdapter adapter =
-        new SingleCheckedArrayAdapter(context, display, themeAccent);
     return dialogBuilder
         .newDialog()
         .setSingleChoiceItems(
-            adapter,
+            display,
             display.indexOf(locale.getDisplayName()),
             (dialogInterface, i) -> {
               Locale locale = locales.get(i);
@@ -52,6 +49,7 @@ public class LocalePickerDialog extends InjectingDialogFragment {
               getTargetFragment().onActivityResult(getTargetRequestCode(), RESULT_OK, data);
               dialogInterface.dismiss();
             })
+        .setNegativeButton(android.R.string.cancel, null)
         .show();
   }
 

app/src/main/res/layout/simple_list_item_single_choice.xml

@@ -29,4 +29,5 @@
   android:checked="false"
   android:drawablePadding="@dimen/keyline_second"
   android:gravity="center_vertical"
-  android:textAppearance="?attr/textAppearanceListItemSmall"/>
+  android:textSize="18sp"
+  android:textAppearance="@style/TextAppearance.MaterialComponents.Body1"/>