The problem is that I just can’t overlay the user, but I have a Design Design 23.1 support library and every component that can only use this
<android.support.v4.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/nes_scroll"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
app:behavior_overlayTop="44dp">
...
and here is the error:
Error: (50) Resource ID not found for attribute behavior_overlayTopin packagecom.scroll.example
it is also not used in the Java source, it just blushes and suggests creating a class related to setOverlapTop().
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