In Android, Image view should disapper before scroll is started, but works reversely. When I'm holding my finger on the screen if I scroll up and down before Imageview is disapper, scroll view is starting to scroll down, then Imageview starts to close. Here is my code.
<android.support.v4.widget.NestedScrollView
android:id="@+id/nestedScroll"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:clipToPadding="false"
android:fillViewport="true"
app:layout_behavior="@string/appbar_scrolling_view_behavior">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/user_menu_bg"
android:orientation="vertical">
<ListView
android:id="@+id/menu_list"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:divider="@drawable/menu_list_divider"
android:listSelector="@android:color/transparent"
android:nestedScrollingEnabled="true" />
</LinearLayout>
</android.support.v4.widget.NestedScrollView>