如何在Recyclerview OnScroll上隐藏TabLayout而不是工具栏？

Question

我正在使用折叠式工具栏布局，并且我想隐藏TabLayout而不是工具栏。例如，当我向下滚动我的recyclerview时，我希望TabLayout隐藏并且工具栏保持在顶部。我将协调器布局嵌套在抽屉中，就像这样，我正在使用以下结构：

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/drawer_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:openDrawer="end">

    <android.support.design.widget.CoordinatorLayout
        android:id="@+id/main_content"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <android.support.design.widget.AppBarLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:theme="@style/AppTheme.AppBarOverlay">

            <android.support.design.widget.CollapsingToolbarLayout
                android:id="@+id/collapse_toolbar"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                app:layout_scrollFlags="scroll|enterAlways"
                app:titleEnabled="false">

                <android.support.v7.widget.Toolbar
                    android:id="@+id/toolbar"
                    android:layout_width="match_parent"
                    android:layout_height="?android:attr/actionBarSize"
                    app:popupTheme="@style/AppTheme.PopupOverlay" />

            </android.support.design.widget.CollapsingToolbarLayout>

            <android.support.design.widget.TabLayout
                android:id="@+id/tab_layout"
                android:layout_width="match_parent"
                android:layout_height="?attr/actionBarSize"
                app:tabMaxWidth="0dp"
                app:tabGravity="fill"
                app:tabMode="fixed">
            </android.support.design.widget.TabLayout>

        </android.support.design.widget.AppBarLayout>

        <include layout="@layout/content_main" />

        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent">

            <android.support.design.widget.FloatingActionButton
                android:id="@+id/fab"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="bottom|end"
                android:layout_alignParentEnd="true"
                android:layout_margin="@dimen/fab_margin"
                android:layout_above="@+id/bottom_navigation"
                app:srcCompat="@drawable/ic_filter_list_white_24dp"
                android:layout_alignParentRight="true" />

            <android.support.design.widget.BottomNavigationView
                android:id="@+id/bottom_navigation"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_alignParentBottom="true"
                app:itemBackground="@color/colorBottomNavigationBar"
                app:itemIconTint="@drawable/bottom_main_nav_item_style"
                app:itemTextColor="@drawable/bottom_main_nav_item_style"
                android:layout_gravity="bottom"
                app:menu="@menu/bottom_nav_items" />

        </RelativeLayout>

    </android.support.design.widget.CoordinatorLayout>

    <LinearLayout
        android:id="@+id/platforms_filter_drawer"
        android:background="@color/colorPrimaryD"
        android:layout_width="215dp"
        android:layout_height="match_parent"
        android:layout_gravity="right"
        android:orientation="vertical" >

        <RelativeLayout
            android:paddingTop="12dp"
            android:paddingRight="@dimen/activity_horizontal_margin"
            android:paddingLeft="@dimen/activity_horizontal_margin"
            android:paddingBottom="@dimen/activity_vertical_margin"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal" >

            <TextView
                android:id="@+id/filter_text_view"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_alignParentLeft="true"
                android:layout_alignParentStart="true"
                android:layout_centerVertical="true"
                android:gravity="center_vertical"
                android:text="FILTER"
                android:textColor="@android:color/white"
                android:textSize="@dimen/header" />

            <Button
                android:textColor="@android:color/white"
                android:textSize="@dimen/header"
                android:id="@+id/btn_clear"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_alignParentEnd="true"
                android:layout_alignParentRight="true"
                android:layout_centerVertical="true"
                android:visibility="invisible"
                android:text="CLEAR"
                android:backgroundTint="@color/md_red_600"/>

        </RelativeLayout>

        <View
            android:layout_width="match_parent"
            android:layout_height="0.5dp"
            android:background="@color/md_grey_700" />

        <ListView
            android:id="@+id/left_drawer_list"
            android:layout_width="215dp"
            android:layout_height="wrap_content"
            android:layout_gravity="start"
            android:choiceMode="singleChoice"
            android:divider="@android:color/transparent"
            android:dividerHeight="0dp" />

    </LinearLayout>


</android.support.v4.widget.DrawerLayout>

我该如何完成？非常感谢你！

Answer 1

尝试一下:)

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout 
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/drawer_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:openDrawer="end">

<LinearLayout
    android:layout_width="wrap_content"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <android.support.design.widget.AppBarLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:theme="@style/AppTheme.AppBarOverlay">

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?android:attr/actionBarSize"
            app:popupTheme="@style/AppTheme.PopupOverlay" />

    </android.support.design.widget.AppBarLayout>

</LinearLayout>

<android.support.design.widget.CoordinatorLayout
    android:id="@+id/main_content"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

        <android.support.design.widget.CollapsingToolbarLayout
            android:id="@+id/collapse_toolbar"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            app:layout_scrollFlags="scroll|enterAlways"
            app:titleEnabled="false">

            <android.support.design.widget.TabLayout
                android:id="@+id/tab_layout"
                android:layout_width="match_parent"
                android:layout_height="?attr/actionBarSize"
                app:tabMaxWidth="0dp"
                app:tabGravity="fill"
                app:tabMode="fixed">
            </android.support.design.widget.TabLayout>
        </android.support.design.widget.CollapsingToolbarLayout>


    <include layout="@layout/content_main" />

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <android.support.design.widget.FloatingActionButton
            android:id="@+id/fab"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="bottom|end"
            android:layout_alignParentEnd="true"
            android:layout_margin="@dimen/fab_margin"
            android:layout_above="@+id/bottom_navigation"
            app:srcCompat="@drawable/ic_filter_list_white_24dp"
            android:layout_alignParentRight="true" />

        <android.support.design.widget.BottomNavigationView
            android:id="@+id/bottom_navigation"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_alignParentBottom="true"
            app:itemBackground="@color/colorBottomNavigationBar"
            app:itemIconTint="@drawable/bottom_main_nav_item_style"
            app:itemTextColor="@drawable/bottom_main_nav_item_style"
            android:layout_gravity="bottom"
            app:menu="@menu/bottom_nav_items" />

    </RelativeLayout>

</android.support.design.widget.CoordinatorLayout>

<LinearLayout
    android:id="@+id/platforms_filter_drawer"
    android:background="@color/colorPrimaryD"
    android:layout_width="215dp"
    android:layout_height="match_parent"
    android:layout_gravity="right"
    android:orientation="vertical" >

    <RelativeLayout
        android:paddingTop="12dp"
        android:paddingRight="@dimen/activity_horizontal_margin"
        android:paddingLeft="@dimen/activity_horizontal_margin"
        android:paddingBottom="@dimen/activity_vertical_margin"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal" >

        <TextView
            android:id="@+id/filter_text_view"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentLeft="true"
            android:layout_alignParentStart="true"
            android:layout_centerVertical="true"
            android:gravity="center_vertical"
            android:text="FILTER"
            android:textColor="@android:color/white"
            android:textSize="@dimen/header" />

        <Button
            android:textColor="@android:color/white"
            android:textSize="@dimen/header"
            android:id="@+id/btn_clear"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentEnd="true"
            android:layout_alignParentRight="true"
            android:layout_centerVertical="true"
            android:visibility="invisible"
            android:text="CLEAR"
            android:backgroundTint="@color/md_red_600"/>

    </RelativeLayout>

    <View
        android:layout_width="match_parent"
        android:layout_height="0.5dp"
        android:background="@color/md_grey_700" />

    <ListView
        android:id="@+id/left_drawer_list"
        android:layout_width="215dp"
        android:layout_height="wrap_content"
        android:layout_gravity="start"
        android:choiceMode="singleChoice"
        android:divider="@android:color/transparent"
        android:dividerHeight="0dp" />

</LinearLayout>