协调器布局不适用于 Linearlayout

Question

我想在向下滚动列表视图时隐藏工具栏并保留选项卡，但问题是当我将线性布局放置在协调器布局中时，工具栏不会隐藏，当我删除线性布局时它可以工作但子视图会改变它们我不想要的地方，我试图将线性布局移动到 appbarlayout 下方，但向下滚动时横幅隐藏，这里是主要活动 xml：

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout
    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/drawer_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/primary_color"
    android:fitsSystemWindows="true"
    android:orientation="vertical"
    tools:context="com.example.ringtone.MainActivity"
    tools:openDrawer="start">


    <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:layout_width="match_parent"
        android:layout_height="match_parent"
        tools:context=".MainActivity">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical"
            >
            <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="@color/primary_color"
                    android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
                    app:layout_scrollFlags="scroll|enterAlways|snap"
                    app:popupTheme="@style/ThemeOverlay.AppCompat.Light">

                    <Button
                        android:id="@+id/more_toolbar"
                        android:layout_width="30dp"
                        android:layout_height="30dp"
                        android:layout_gravity="end"
                        android:layout_marginEnd="8dp"
                        android:background="@drawable/thumbsuo" />
                </android.support.v7.widget.Toolbar>

                <android.support.design.widget.TabLayout
                    android:id="@+id/tabs"
                    style="@style/CategoryTab"
                    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="0dp"
                android:layout_weight="1"
                />

            <ProgressBar
                android:id="@+id/progressBarParent"
                style="?android:attr/progressBarStyleHorizontal"
                android:layout_width="match_parent"
                android:layout_height="10dp"
                android:layout_marginBottom="2dp"   
                />

            <com.google.android.gms.ads.AdView
                xmlns:ads="http://schemas.android.com/apk/res-auto"
                android:id="@+id/adView"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                ads:adSize="SMART_BANNER"
                ads:adUnitId="ca-app-pub-3940256099942544/6300978111">

            </com.google.android.gms.ads.AdView>
        </LinearLayout>


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

    <android.support.design.widget.NavigationView
        android:id="@+id/nav_view"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:layout_gravity="start"
        android:background="@color/primary_color"
        app:headerLayout="@layout/nav_header"
        app:itemIconTint="@color/text_drawer_color"
        app:itemTextColor="@color/text_drawer_color"
        app:menu="@menu/drawer_menu" />
</android.support.v4.widget.DrawerLayout>

有什么解决办法吗？提前谢谢你？？

Answer 1

对于仍然面临这个问题的每个人，这里是解决方案，您只需将 coordinatorlayout 放置在相对布局中并添加 android:layout_above="@id/progressBarParent" （或 @id/adView 如果你没有 te pregrassbar )，这里是完整的 activity_main xml 文件：

<android.support.v4.widget.DrawerLayout
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/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/primary_color"
android:fitsSystemWindows="true"
android:orientation="vertical"
tools:context="com.example.ringtone.MainActivity"
tools:openDrawer="start">

<RelativeLayout 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"
    xmlns:ads="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.candyx.testapp.Activity">

<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:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity"
    android:layout_above="@id/progressBarParent">


        <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="@color/primary_color"
                android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
                app:layout_scrollFlags="scroll|enterAlways|snap"
                app:popupTheme="@style/ThemeOverlay.AppCompat.Light">

                <Button
                    android:id="@+id/more_toolbar"
                    android:layout_width="30dp"
                    android:layout_height="30dp"
                    android:layout_gravity="end"
                    android:layout_marginEnd="8dp"
                    android:background="@drawable/thumbsuo" />
            </android.support.v7.widget.Toolbar>

            <android.support.design.widget.TabLayout
                android:id="@+id/tabs"
                style="@style/CategoryTab"
                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="wrap_content"
            app:layout_behavior="@string/appbar_scrolling_view_behavior"
            />







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


<ProgressBar
    android:id="@+id/progressBarParent"
    style="?android:attr/progressBarStyleHorizontal"
    android:layout_width="match_parent"
    android:layout_height="10dp"
    android:layout_marginBottom="2dp"
    android:layout_above="@+id/adView"


    />

<com.google.android.gms.ads.AdView
    xmlns:ads="http://schemas.android.com/apk/res-auto"
    android:id="@+id/adView"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    ads:adSize="SMART_BANNER"
    ads:adUnitId="ca-app-pub-3940256099942544/6300978111"
    android:layout_gravity="center|bottom"
    android:layout_alignParentBottom="true">

</com.google.android.gms.ads.AdView>

</RelativeLayout>
<android.support.design.widget.NavigationView
    android:id="@+id/nav_view"
    android:layout_width="wrap_content"
    android:layout_height="match_parent"
    android:layout_gravity="start"
    android:background="@color/primary_color"
    app:headerLayout="@layout/nav_header"
    app:itemIconTint="@color/text_drawer_color"
    app:itemTextColor="@color/text_drawer_color"
    app:menu="@menu/drawer_menu" />