[英]How to hide toolbar automatically if I scroll down the recyclerView inside a fragment?
Just Like my title says, I was trying to hide my toolbar dynamically when I scroll down the RecycledView inside of a fragment by using the coordinator layout. 就像我的标题所说的那样,当我使用协调器布局向下滚动片段内的RecycledView时,我试图动态隐藏工具栏。 But it is not working.
但这是行不通的。 I think it is because something wrong with my XML file.
我认为这是因为我的XML文件有问题。 I will be really grateful if someone helps me.
如果有人帮助我,我将非常感激。
Here is my fragment XML file, this fragment is contained inside a tab layout: 这是我的片段XML文件,该片段包含在选项卡布局中:
<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"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.jinyu.jiaodian.MainActivity"
>
<android.support.v7.widget.RecyclerView
app:layout_behavior="@string/appbar_scrolling_view_behavior"
android:id="@+id/my_recycler_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scrollbars="vertical"
/>
<android.support.design.widget.FloatingActionButton
android:id="@+id/upload_a_word"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true"
android:layout_alignParentBottom="true"
android:layout_margin="@dimen/fab_margin"
app:srcCompat="@android:drawable/ic_input_add"
android:layout_alignParentRight="true" />
Here is my app_bar layout: 这是我的app_bar布局:
<?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:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context="com.example.jinyu.jiaodian.MainActivity">
<android.support.design.widget.AppBarLayout
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>
<include
layout="@layout/tab_layout"/>
Put app:layout_behavior="@string/appbar_scrolling_view_behavior"
on your include
, not on the AppBarLayout
. 将
app:layout_behavior="@string/appbar_scrolling_view_behavior"
放在您的include
,而不放在AppBarLayout
。 That behavior is what propagates nested scrolling events to your AppBarLayout
. 该行为就是将嵌套滚动事件传播到您的
AppBarLayout
。
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.