CoordinatorLayout不起作用 [英] CoordinatorLayout not working
问题描述
我正在尝试从新发布的CoordinatorLayout ="noreferrer"> Android设计支持库,根据示例
I am attempting to implement a CoordinatorLayout
from the newly announced Android Design Support Library and I have used the following code in my XML layout as per the sample here:
<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.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="?attr/colorPrimary"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
app:layout_scrollFlags="scroll|enterAlways"/>
<android.support.design.widget.TabLayout
android:id="@+id/tabs"
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="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior" />
但是,当我向下滚动视图时,操作栏不会隐藏.我不知道为什么这不起作用.
However the action bar does not hide when I scroll down the view. I can't figure out why this is not working.
据我所知,CoordinatorLayout
不适用于ListView/GridView/ScrollViews
,而仅适用于RecyclerView
和NestedScrollView
.不幸的是,对我来说,仅切换到其中一种视图是不可能的,因此我仍在寻找解决方案.
As far as I am aware it appears that CoordinatorLayout
does not work with ListView/GridView/ScrollViews
and only works with RecyclerView
and NestedScrollView
. Unfortunately simply switching to one of these views is not a possibility for me so I am still looking for a solution.
推荐答案
我相信您需要使ListView
同时实现ScrollingView
和NestedScrollingChild
接口.
I believe you need to make your ListView
implement both ScrollingView
and NestedScrollingChild
interfaces.
这不是最简单的事情,但是如果您查看RecyclerView
的源代码,您应该能够做到.它使用了NestedScrollingChildHelper
,您应该可以执行同样的操作.
It's not the easiest thing, but you should be able to do it if you look at RecyclerView
's source code. It makes use of a NestedScrollingChildHelper
and you should be able to do the same.
这篇关于CoordinatorLayout不起作用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IT屋!