CoordinatorLayout + AppbarLayout + Viewpager不能调整子布局的大小

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问题描述

我将CoordinatorLayout与ViewPager和ViewPager结合使用时遇到问题:

I have a problem using CoordinatorLayout in conjunction with ViewPager and the ViewPager:

布局无法正确调整大小.假设求解的高度包括制表符高度.因此，当我滚动到底部时，会看到以下内容:

the layout does not resize correctly. Supose that the height solved includes tabs height. So when I scroll to bottom i see this:

主要布局代码:

<?xml version="1.0" encoding="utf-8"?>
<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/coordinator"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true"
    tools:context=".activities.MainActivity">

    <android.support.design.widget.AppBarLayout
        android:id="@+id/app_bar_layout"
        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="?attr/actionBarSize"
            android:background="?attr/colorPrimary"
            app:layout_scrollFlags="scroll|enterAlways"
            app:popupTheme="@style/AppTheme.PopupOverlay" />

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

    <FrameLayout
        android:id="@+id/root_view"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_behavior="@string/appbar_scrolling_view_behavior">

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

    <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_margin="@dimen/fab_margin"
        android:src="@android:drawable/ic_dialog_email" />

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

标签布局代码

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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"
    app:layout_behavior="@string/appbar_scrolling_view_behavior"
    tools:context=".activities.MainActivity"
    tools:showIn="@layout/activity_main"
    android:orientation="vertical">

    <android.support.design.widget.TabLayout
        android:id="@+id/tab_layout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:layout_behavior="@string/appbar_scrolling_view_behavior"/>

    <FrameLayout
        android:id="@+id/regularLayout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:layout_behavior="@string/appbar_scrolling_view_behavior">

        <android.support.v4.view.ViewPager
            android:id="@+id/pager"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:layout_behavior="@string/appbar_scrolling_view_behavior"/>
    </FrameLayout>
</LinearLayout>

子布局代码

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/colorPrimary"
    android:clickable="false"
    android:orientation="vertical">

    <ImageView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_alignParentRight="true"
        android:layout_gravity="bottom"
        android:layout_marginRight="85dp"
        android:src="@drawable/ic_android" />

</RelativeLayout>

有什么主意吗?我看到了几条帖子，但找不到问题，我需要孩子的身高必须是screenHeight-actionBarHeight-TabBatHeight

Any idea? I saw several posts but could not find the problem, I need that the height of child must be screenHeight - actionBarHeight - TabBatHeight

推荐答案

在使用CoordinatorLayout + AppBarLayout + ViewPager时需要考虑以下几点:

There are several things to consider when using CoordinatorLayout + AppBarLayout + ViewPager:

将ViewPager放置在内部 CoordinatorLayout，但外部 AppbarLayout
仅 ViewPager应将其行为设置为app:layout_behavior="@string/appbar_scrolling_view_behavior"放置
将TabLayout放置在AppBarLayout
您还可以在AppBarLayout 直接子级

滚动标志

CoordinatorLayout

设置android:fitsSystemWindows="true" AppBarLayout，以便您可以将稀松布的颜色应用于状态栏

Place ViewPager Inside CoordinatorLayout but Outside AppbarLayout
Only ViewPager should set its behavior toapp:layout_behavior="@string/appbar_scrolling_view_behavior" put
Place TabLayout inside AppBarLayout
You can also set scroll flag on the AppBarLayout direct children
set android:fitsSystemWindows="true" on both CoordinatorLayout & AppBarLayout so your scrim color can be applied to status bar

所以您的最终布局可能应该是这样的(它不包括您的子布局，因为我想这是您的ViewPager页面):

so your final layout probably should looks like this (it doesn't include your child layout because I guess it was your ViewPager Page) :

<?xml version="1.0" encoding="utf-8"?>
<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/coordinator"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true">

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

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

        <android.support.design.widget.TabLayout
            android:id="@+id/tab_layout"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:layout_scrollFlags="scroll|enterAlways" />

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


    <android.support.v4.view.ViewPager
        android:id="@+id/pager"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        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="bottom|end"
        android:layout_margin="@dimen/fab_margin"
        android:src="@android:drawable/ic_dialog_email" />

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

以下是您绝对应该查看的一些资源:

And here are several resource you should definitely check out:

使用CoordinatorLayout处理滚动
简介android上的CoordinatorLayout
Chris的出色示例项目香蕉

Handling Scrolls with CoordinatorLayout
Introduction toCoordinatorLayout on android
Great sample project by ChrisBanes

这篇关于CoordinatorLayout + AppbarLayout + Viewpager不能调整子布局的大小的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！

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