CoordinatorLayout+AppBarLayout+CollapsingToolbarLayout+ViewPager滑动效果，以及代码处理是否推动效果

布局文件

<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_video_detail"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="exle.li_yuweii.superapp.activitys.VideoDetailActivity">


    <android.support.design.widget.AppBarLayout
        android:fitsSystemWindows="true"
        android:id="@+id/video_detail_appbar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="#ffff"
        app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">

        
        
        
        
        <android.support.design.widget.CollapsingToolbarLayout
            android:fitsSystemWindows="true"
            android:id="@+id/video_detail_collapsing"
            android:layout_width="match_parent"
            android:layout_height="200dp"
            app:contentScrim="#FB7299"
            app:layout_scrollFlags="scroll|exitUntilCollapsed"
            >
            
            <FrameLayout
                android:id="@+id/video_detail_fragment"
                android:layout_width="match_parent"
                android:layout_height="wrap_content">

                <SurfaceView
                    android:id="@+id/video_detail_surface_view"
                    android:layout_width="match_parent"
                    android:layout_height="200dp"
                    android:visibility="invisible" />

                <LinearLayout
                    android:id="@+id/video_detail_play_view"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_gravity="bottom"
                    android:background="#9999"
                    android:gravity="center_vertical"
                    android:orientation="horizontal"
                    android:visibility="invisible">

                    <ImageView
                        android:id="@+id/video_controller_play"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:src="@android:drawable/ic_media_pause" />

                    <SeekBar
                        android:id="@+id/video_controller_progress"
                        android:layout_width="0dp"
                        android:layout_height="wrap_content"
                        android:layout_weight="1" />

                    <TextView
                        android:id="@+id/video_controller_time"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:text="00:00" />

                    <ImageView
                        android:id="@+id/video_controller_orientation_switch"
                        android:layout_width="20dp"
                        android:layout_height="20dp"
                        android:paddingLeft="3dp"
                        android:src="@drawable/change" />
                LinearLayout>

            FrameLayout>

            <ImageView
                android:fitsSystemWindows="true"
                android:id="@+id/video_detail_cover"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:adjustViewBounds="true"
                android:scaleType="fitXY" />
                

            <android.support.v7.widget.Toolbar
                android:id="@+id/video_detail_tool_bar"
                android:layout_width="match_parent"
                android:layout_height="?actionBarSize"
                app:layout_collapseMode="pin">
                <ImageView
                    android:id="@+id/video_detail_iamge1"
                    android:src="@drawable/action_button_back_pressed_light"
                    android:layout_width="wrap_content"
                    android:layout_height="22dp" />
                <LinearLayout
                    android:orientation="horizontal"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent">
                    <TextView
                        android:id="@+id/video_detail_text1"
                        android:text="SuperApp"
                        android:gravity="center"
                        android:layout_width="wrap_content"
                        android:layout_height="match_parent" />
                    <ImageView
                        android:id="@+id/video_detail_image"
                        android:src="@drawable/ic_tv_play"
                        android:adjustViewBounds="true"
                        android:visibility="invisible"
                        android:layout_width="wrap_content"
                        android:layout_gravity="center"
                        android:layout_height="22dp" />
                    <TextView
                        android:id="@+id/video_detail_text"
                        android:visibility="invisible"
                        android:text="立即播放"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content" />
                LinearLayout>
            android.support.v7.widget.Toolbar>




        android.support.design.widget.CollapsingToolbarLayout>


        

    android.support.design.widget.AppBarLayout>

    <android.support.design.widget.FloatingActionButton
        android:id="@+id/video_detail_play_fab"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginRight="16dp"
        app:layout_anchor="@id/video_detail_appbar"
        app:layout_anchorGravity="right|bottom" />

    
    
    <LinearLayout
        android:id="@+id/video_detail_linear_layout"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical"
        app:layout_behavior="@string/appbar_scrolling_view_behavior">
        <android.support.design.widget.TabLayout
            android:id="@+id/video_detail_tab_layout"
            android:layout_width="150dp"
            android:layout_height="wrap_content"
            app:tabSelectedTextColor="@color/topColor"
            app:layout_behavior="@string/appbar_scrolling_view_behavior"
            android:layout_gravity="bottom"
            app:tabTextColor="#000"/>

        <android.support.v4.view.ViewPager
            android:id="@+id/video_detail_view_pager"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:overScrollMode="never" />




    LinearLayout>
    
    
    
    

    
    
    
    


    

    

android.support.design.widget.CoordinatorLayout>

  app:layout_scrollFlags="scroll|exitUntilCollapsed"

这个设置推到上边toolbar在上边保留

  android:fitsSystemWindows="true"

这个设置沉浸效果设置顶部状态栏时

app:layout_anchor="@id/video_detail_appbar"

FloatingActionButton必须绑定到AppBar上才可以推上去消失

 app:layout_behavior="@string/appbar_scrolling_view_behavior"

AppBar下方的控件要设置这个属性才可以联动

代码里设置推动效果

//设置不可推动
 layoutParams = (AppBarLayout.LayoutParams) collapsing.getLayoutParams();
       int scrollFlags = layoutParams.getScrollFlags(); 
       layoutParams.setScrollFlags(0);

//设置可以推动
layoutParams = (AppBarLayout.LayoutParams) collapsing.getLayoutParams();
  layoutParams.setScrollFlags(AppBarLayout.LayoutParams.SCROLL_FLAG_SCROLL
                                | AppBarLayout.LayoutParams.SCROLL_FLAG_ENTER_ALWAYS);
      collapsing.setLayoutParams(layoutParams);//这句必须加上