habitica-android/Habitica/res/layout/widget_configure_habit_button.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.recyclerview.widget.RecyclerView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/recyclerView"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="match_parent">

</androidx.recyclerview.widget.RecyclerView>
Start working on habit button widget 2016-09-22 14:02:01 +00:00			`<?xml version="1.0" encoding="utf-8"?>`
Update to AndroidX 2018-11-06 15:11:02 +00:00			`<androidx.recyclerview.widget.RecyclerView xmlns:android="http://schemas.android.com/apk/res/android"`
Start working on habit button widget 2016-09-22 14:02:01 +00:00			`android:id="@+id/recyclerView"`
			`android:orientation="vertical" android:layout_width="match_parent"`
			`android:layout_height="match_parent">`

Update to AndroidX 2018-11-06 15:11:02 +00:00			`</androidx.recyclerview.widget.RecyclerView>`