Android CoordinatorLayout + AppbarLayout + Viewpager always scrolling

I have solved the issue, tried over the example Google template and find out that

app:layout_behavior="@string/appbar_scrolling_view_behavior" 

line must be added into view pager properties xml. It solved my problem.

I suggested you try this sample.

this is a layout like your layout in the sample.

<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:app="http://schemas.android.com/apk/res-auto"    android:id="@+id/main_content"    android:layout_width="match_parent"    android:layout_height="match_parent">    <android.support.design.widget.AppBarLayout        android:id="@+id/appbar"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">        <android.support.v7.widget.Toolbar            android:id="@+id/toolbar"            android:layout_width="match_parent"            android:layout_height="?attr/actionBarSize"            android:background="?attr/colorPrimary"            app:popupTheme="@style/ThemeOverlay.AppCompat.Light"            app:layout_scrollFlags="scroll|enterAlways" />        <android.support.design.widget.TabLayout            android:id="@+id/tabs"            android:layout_width="match_parent"            android:layout_height="wrap_content" />    </android.support.design.widget.AppBarLayout>    <android.support.v4.view.ViewPager        android:id="@+id/viewpager"        android:layout_width="match_parent"        android:layout_height="match_parent"        app:layout_behavior="@string/appbar_scrolling_view_behavior" />    <android.support.design.widget.FloatingActionButton        android:id="@+id/fab"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_gravity="end|bottom"        android:layout_margin="@dimen/fab_margin"        android:src="@drawable/ic_done" /></android.support.design.widget.CoordinatorLayout>

using ListView as the data for ViewPager? If so, you need listView.setNestedScrollingEnabled(true);