I'm trying to get the toolbar to collapse on scroll when a recyclerview inside a fragment is scrolled. To start, heres my main layout:
<DrawerLayout>
<RelativeLayout
android:id="@+id/mainRelativeLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<android.support.design.widget.CoordinatorLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
<android.support.design.widget.AppBarLayout
android:id="@+id/appBarLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
<Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:elevation="5dp"
app:layout_scrollFlags="scroll|enterAlways"
>
</Toolbar>
</android.support.design.widget.AppBarLayout>
<FrameLayout
android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
/>
</android.support.design.widget.CoordinatorLayout>
</RelativeLayout>
<!-- ignore -->
<drawercontents>
</DrawerLayout>
So as you can probably guess my fragments are being loaded into @id/container
. My first fragment contains the recyclerview, and I set app:layout_behavior="@string/appbar_scrolling_view_behavior"
on that recyclerview. This does work, and the toolbar collapses on scroll. The issue is the toolbar covers the top contents of the fragment when its not collapsed. Adding a top margin to the fragment container equal to the size of the toolbar just causes a blank space to be left when the toolbar collapses (obviously).
Whats missing here? Any ideas?
EDIT: As requested, here is the layout for the fragment containing the recyclerview:
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.RecyclerView
android:id="@+id/feed"
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#00000000"
app:layout_behavior="@string/appbar_scrolling_view_behavior"/>
<?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"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.AppBarLayout
android:id="@+id/tabanim_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/tabanim_toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:layout_scrollFlags="scroll|enterAlways|snap"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light" />
</android.support.design.widget.AppBarLayout>
<android.support.v7.widget.RecyclerView
android:id="@+id/recyclerView"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior" />
</android.support.design.widget.CoordinatorLayout>
Haven't tested this yet, but this is what you must do:
app:layout_behavior="@string/appbar_scrolling_view_behavior"
to the FrameLayout
with id container
. android:fitsSystemWindows = "true"
to your AppBarLayout
. This is exactly what I'm doing in my app, and it works. If this doesn't work for you, try cleaning (on Android Studio, Build -> Clean Project ) your project and running the app again.
My friend i did this today and working perfect, i have 2 fragments both have RecyclerView
and can scroll Toolbar
. I looked chrisbanes's
CheeseSquare
: CheeseSquare
If you take a look at MainActivity
, there is 3 fragments in TabLayout
and all of them can scroll Toolbar
. So i prepared this layout , maybe you will take a look at:
my activity_home.xml
:
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/drawer"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">
<include layout="@layout/content_home"/>
<android.support.design.widget.NavigationView
android:id="@+id/navigation_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
android:layout_gravity="start"
app:menu="@menu/homepage_leftdrawer">
</android.support.design.widget.NavigationView>
</android.support.v4.widget.DrawerLayout>
And content_home.xml
:
<?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"
android:id="@+id/root"
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/AppTheme3.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|snap" />
<android.support.design.widget.TabLayout
android:id="@+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:tabTextColor="@color/Transparent_few_white"
app:tabIndicatorColor="@color/White"
app:tabTextAppearance="@style/TabLayoutTextStyle"
app:tabIndicatorHeight="3dp"
app:tabSelectedTextColor="@color/White"
android:background="@color/ColorPrimary"
app:tabPaddingStart="0dp"
app:tabPaddingEnd="0dp"/>
</android.support.design.widget.AppBarLayout>
<android.support.v4.view.ViewPager
android:id="@+id/pager2"
android:layout_height="match_parent"
android:layout_width="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior"/>
</android.support.design.widget.CoordinatorLayout>
Where is the key here :
If you take a look at my ViewPager
, it has app:layout_behavior="@string/appbar_scrolling_view_behavior"
attribute Then thats it. Dont add any other behavior in fragment . Just try like that and come with result please !
将一个布局名称设置为toolbar.xml并将其包含在您要使用的代码中,但提醒一件事请不要使用其他任何布局,如Relativelayout,Linearlayout和其他布局
You can fix this by adding a third flag - snap
, to layout_scrollFlags
property.
<Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:elevation="5dp"
app:layout_scrollFlags="scroll|enterAlways|snap" />
Using this option will determine what to do when a view only has been partially reduced. If scrolling ends and the view size has been reduced to less than 50% of its original, then this view to return to its original size. If the size is greater than 50% of its sized, it will disappear completely.
check this link .
I used a SwipeRefreshLayout
or just a LinearLayout
or RelativeLayout
as the root of the Fragment
's layout and it's working.
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.SwipeRefreshLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/swipe_refresh_layout_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/mycustomcolor"
app:layout_behavior="@string/appbar_scrolling_view_behavior">
<android.support.v7.widget.RecyclerView
android:id="@+id/recycler_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_behavior="@string/appbar_scrolling_view_behavior" />
</android.support.v4.widget.SwipeRefreshLayout>
With RelativeLayout
:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/fragment2"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior">
<android.support.v7.widget.RecyclerView
android:id="@+id/recycler_view_android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentStart="true"
app:layout_behavior="@string/appbar_scrolling_view_behavior" />
</RelativeLayout>
Then it should be good to go.
You can use Collapsing layout like
<?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"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">
<android.support.design.widget.CollapsingToolbarLayout
android:id="@+id/collapse_toolbar"
android:layout_width="match_parent"
android:layout_height="200dp"
android:fitsSystemWindows="true"
app:contentScrim="@color/zxing_transparent"
android:paddingBottom="2dip"
app:layout_scrollFlags="scroll|exitUntilCollapsed"
app:expandedTitleGravity="bottom|center_horizontal"
app:expandedTitleMarginBottom="50dip"
app:collapsedTitleGravity="top|center_vertical"
app:collapsedTitleTextAppearance="@style/collapseTitle">
<Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:elevation="5dp"
app:layout_scrollFlags="scroll|enterAlways"
>
</Toolbar>
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<FrameLayout
android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
/>
</android.support.design.widget.CoordinatorLayout>
<android.support.design.widget.CollapsingToolbarLayout
android:id="@+id/collapsing_toolbar_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:contentScrim="?attr/colorPrimary"
>
<android.support.v7.widget.Toolbar
android:id="@+id/appBar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
app:layout_collapseMode="pin" />
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:layout_below="@+id/app_bar_layout"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
android:weightSum="1">
<FrameLayout
android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/colorAccent"
>
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="Your recycler view should go here"/>
</FrameLayout>
</LinearLayout>
Also ran into this problem. But a solution was found. The solution with xml rework can not be, so you need to do it programmatically. All we need is Inflater . Yes, yes, that's so simple. On the fly change xml to work all scrolling.
in your framelayout set
android:layout_below="@+id/appBarLayout"
if that not work then try this:
android:layout_below="@+id/toolbar"
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