（设计支持库）CollapsingToolbarLayout - 工具栏没有得到寄托在崩溃 [英] (Design Support Library) CollapsingToolbarLayout -- Toolbar not getting pinned on collapse

问题描述

我无法整合设计支持库到我的应用程序。出于某种原因，该工具栏崩溃与CollapsingToolbarLayout，并且不让它像寄托在Cheesesquare例如由克里斯·巴内斯。 https://github.com/chrisbanes/cheesesquare

我没做什么不同我的布局。事实上，我代替我的风格与他，并放置在他的布局。我不知道是否使用工具栏，而不是android.support.v7.widget.Toolbar的是导致此。

这是问题所在。

下面是我的AppBar部分的XML。

 ＆LT; android.support.design.widget.CoordinatorLayout
    的xmlns：机器人=htt​​p://schemas.android.com/apk/res/android
    的xmlns：程序=htt​​p://schemas.android.com/apk/res-auto
    机器人：ID =@ + ID / main_content
    机器人：layout_width =match_parent
    机器人：layout_height =match_parent
    机器人：fitsSystemWindows =真正的＆GT;


    ＆LT; android.support.design.widget.AppBarLayout
        机器人：ID =@ + ID / appbar
        机器人：layout_width =match_parent
        机器人：layout_height =@扪/ detail_backdrop_height
        机器人：主题=@风格/ ThemeOverlay.AppCompat.Dark.ActionBar
        机器人：fitsSystemWindows =真正的＆GT;

        ＆LT; android.support.design.widget.CollapsingToolbarLayout
            机器人：ID =@ + ID / collapsing_toolbar
            机器人：layout_width =match_parent
            机器人：layout_height =match_parent
            应用程序：layout_scrollFlags =滚动| exitUntilCollapsed
            机器人：fitsSystemWindows =真
            应用程序：contentScrim =？ATTR / colorPrimary
            应用程序：expandedTitleMarginStart =48dp
            应用程序：expandedTitleMarginEnd =64dp＆GT;

            ＆LT; ImageView的
                机器人：ID =@ + ID /背景
                机器人：layout_width =match_parent
                机器人：layout_height =match_parent
                机器人：fitsSystemWindows =真
                应用程序：layout_collapseMode =视差/＆GT;

            ＆LT;工具栏
                机器人：ID =@ + ID /工具栏
                机器人：layout_width =match_parent
                机器人：layout_height =？ATTR / actionBarSize
                应用程序：popupTheme =@风格/ ThemeOverlay.AppCompat.Light
                应用程序：layout_collapseMode =针/＆GT;

        ＆LT; /android.support.design.widget.CollapsingToolbarLayout>

    ＆LT; /android.support.design.widget.AppBarLayout>

    ...

＆LT; /android.support.design.widget.CoordinatorLayout>
 

解决方案

您的直觉是正确的： Col​​lapsingToolbarLayout 并使用支持依赖于你工具栏 - 它使用设置 Col​​lapsingToolbarLayout 的最低高度（在许多其他事情）。您应该切换到使用工具栏的支持版本，以确保最好的体验 Col​​lapsingToolbarLayout 。

I'm having trouble integrating the Design Support Library into my application. For some reason, the toolbar collapses with the CollapsingToolbarLayout, and does not leave it pinned like in the Cheesesquare example by Chris Banes. https://github.com/chrisbanes/cheesesquare

I didn't do anything different to my layout. In fact, I replaced my styles with his, and dropped in his layout. I wonder if using Toolbar, instead of android.support.v7.widget.Toolbar is causing this.

Here is the problem.

Here is my XML of the AppBar section.

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


    <android.support.design.widget.AppBarLayout
        android:id="@+id/appbar"
        android:layout_width="match_parent"
        android:layout_height="@dimen/detail_backdrop_height"
        android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
        android:fitsSystemWindows="true">

        <android.support.design.widget.CollapsingToolbarLayout
            android:id="@+id/collapsing_toolbar"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            app:layout_scrollFlags="scroll|exitUntilCollapsed"
            android:fitsSystemWindows="true"
            app:contentScrim="?attr/colorPrimary"
            app:expandedTitleMarginStart="48dp"
            app:expandedTitleMarginEnd="64dp">

            <ImageView
                android:id="@+id/backdrop"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:fitsSystemWindows="true"
                app:layout_collapseMode="parallax" />

            <Toolbar
                android:id="@+id/toolbar"
                android:layout_width="match_parent"
                android:layout_height="?attr/actionBarSize"
                app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
                app:layout_collapseMode="pin" />

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

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

    ...

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

解决方案

Your intuition was correct: CollapsingToolbarLayout does rely on you using the support Toolbar - it uses that to set the minimum height of the CollapsingToolbarLayout (among many other things). You should switch to using the support version of the Toolbar to ensure the best experience with CollapsingToolbarLayout.

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