CollapsingToolbarLayout和TabLayout [英] CollapsingToolbarLayout and TabLayout

问题描述

我试图创建一个具有CollapsingToolbarLayout与在cheesesquare例如的图像和工具栏（如在CheeseDetailActivity这里），还具有下面的选项卡的布局。

I'm trying to create an activity that has a CollapsingToolbarLayout with an image and toolbar (like in the CheeseDetailActivity in the cheesesquare example here), that also has a tab layout below.

任何想法如何实现它？

当试图将其添加到CollapsingToolbarLayout或AppBarLayout，其结果是，该标签布局是在屏幕的顶部

When trying to add it to the CollapsingToolbarLayout or the AppBarLayout, the result is that the tab layout is in the top of the screen

推荐答案

试试这个结构：

<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">

    <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.AppBarLayout
        android:id="@+id/appbar"
        android:layout_width="match_parent"
        android:layout_height="SPECIFIC HEIGHT HERE!"
        android:fitsSystemWindows="true"
        android:theme="ADD A STYLE HERE IF YOU WANT">

        <android.support.design.widget.CollapsingToolbarLayout
            android:id="@+id/collapsing_toolbar"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:fitsSystemWindows="true"
            app:contentScrim="?attr/colorPrimary"
            app:layout_scrollFlags="scroll|exitUntilCollapsed"
            >

            <ImageView
                android:id="@+id/backdrop"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:fitsSystemWindows="true"
                android:scaleType="centerCrop"
                android:src="YOUR SOURCE"
                app:layout_collapseMode="parallax"
                app:layout_collapseParallaxMultiplier="YOUR MULTIPLIER"
                />

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

            </android.support.v7.widget.Toolbar>

            <android.support.design.widget.TabLayout
                android:id="@+id/tabs"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_gravity="bottom"
                app:tabGravity="YOUR TAB GRAVITY"
                app:tabIndicatorColor="YOUR TAB INDICATOR COLOR"
                app:tabMode="YOUR TAB MODE">

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

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

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

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

最重要的属性是 layout_gravity 的TabLayout的是底

The important attribute is the layout_gravity of the TabLayout to be bottom.

有关API 21和下我遇到的TabLayout消失的问题。如果你面临同样的问题，为TabLayout（原料药超过21下）使用：

For API 21 and lower I encountered the issue of the TabLayout disappearing. If you face the same problem, for the TabLayout (for APIs lower than 21) use this:

<android.support.design.widget.TabLayout
    android:id="@+id/tabs"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:fitsSystemWindows="true"
    android:translationY="YOU HAVE TO EXPERIMENT WITH THIS ATTRIBUTE - (in dps)"
    app:tabGravity="YOUR TAB GRAVITY"
    app:tabIndicatorColor="YOUR TAB INDICATOR COLOR"
    app:tabMode="YOUR TAB MODE"
    >

您已经尝试了 translationY 属性取决于你给你的应用程序栏的大小。您将在dps的输入值，并在几分钟内，你会打钉。

You have to experiment with the translationY attribute depending on the size you gave your app bar. You will enter a value in dps and in a few minutes you will nail it.

希望它能对你的作品，因为它为我工作！

Hope it works for you as it worked for me!

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