IssueTracker

Component used: Preferences Version used: 1.2.0 Devices/Android versions reproduced on: n/a

As defined:

<!-- Base attributes available to PreferenceGroup. -->
<declare-styleable name="PreferenceGroup">
    <!-- Whether to order the Preference under this group as they appear in the XML file.
         If this is false, the ordering will follow the Preference order attribute and
         default to alphabetic for those without the order attribute. -->
    <attr name="orderingFromXml" format="boolean" />
    <attr name="android:orderingFromXml" />

...

But code:

public PreferenceGroup(@NonNull Context context, @Nullable AttributeSet attrs,
        int defStyleAttr, int defStyleRes) {
    super(context, attrs, defStyleAttr, defStyleRes);

    mPreferences = new ArrayList<>();

    final TypedArray a = context.obtainStyledAttributes(
            attrs, R.styleable.PreferenceGroup, defStyleAttr, defStyleRes);

    mOrderingAsAdded =
            TypedArrayUtils.getBoolean(a, R.styleable.PreferenceGroup_orderingFromXml,
                    R.styleable.PreferenceGroup_orderingFromXml, true);

Typically, in the Android Studio layout, when you start typing "ordering.." it will automatically add "android:orderingFromXml" and as a result won't work.

Problem: the "mOrderingAsAdded" is only set correctly when "app:orderingFromXml" is used, and NOT when "android:orderingFromXml" is used.

Result: a frustrated user who yet again had to debug the Android framework.

Solution: Either remove the "android:orderingFromXml" from the declare-styleable (my preferred solution) or add more duplicate code to set mOrderingAsAdded correctly (please don't, far to much duplicate code in the android framework already)