<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:layout_width="match_parent"
android:layout_height="wrap_content">
<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"/>
</android.support.design.widget.AppBarLayout>
<android.support.v4.view.ViewPager
android:id="#+id/view_pager"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="#+id/tab_bar" />
<com.whl.handytabbar.HandyTabBar
android:id="#+id/tab_bar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:layout_alignParentBottom="true"
android:layout_gravity="bottom"
android:background="#drawable/custom_shadow" />
</android.support.design.widget.CoordinatorLayout>
Toolbar is inside an AppBarLayout which is probably inside your CoordinatorLayout then something like this should work.
AppBarLayout appBarLayout = (AppBarLayout)findViewById(R.id.appBar);
appBarLayout.setExpanded(true, true);
Or to collapse toolbar then something like this should work
AppBarLayout appBarLayout = (AppBarLayout)findViewById(R.id.appBar);
appBarLayout.setExpanded(false, true);
Follow this link you will get your answer here :
How to hide ToolBar when i scrolling content up in android
you need this app:layout_behavior="#string/appbar_scrolling_view_behavior" in your scroll view ase below:
<android.support.v7.widget.RecyclerView
android:id="#+id/rvToDoList"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
we need to define an association between the AppBarLayout and the View
that will be scrolled. Add an app:layout_behavior to a RecyclerView or
any other View capable of nested scrolling such as NestedScrollView.
The support library contains a special string resource
#string/appbar_scrolling_view_behavior that maps to
AppBarLayout.ScrollingViewBehavior, which is used to notify the
AppBarLayout when scroll events occur on this particular view. The
behavior must be established on the view that triggers the event.
You should take a look at This Guide
Related
Hello I have CoordinatorLayout with AppBar, Toolbar and RecyclerView.
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
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="wrap_content"
android:elevation="0dp"
android:fitsSystemWindows="true"
app:elevation="0dp">
<android.support.v7.widget.Toolbar
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:elevation="8dp"
android:fitsSystemWindows="true"
app:contentInsetEnd="0dp"
app:contentInsetStart="0dp"/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
app:layout_scrollFlags="scroll|exitUntilCollapsed"/>
</android.support.design.widget.AppBarLayout>
<android.support.v7.widget.RecyclerView
android:id="#+id/rv_photos"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:nestedScrollingEnabled="false"
app:layout_behavior="#string/appbar_scrolling_view_behavior"/>
</android.support.design.widget.CoordinatorLayout>
I want to leave Toolbar on top and don't want to move it, but let LinearLayout scroll below it (under the Toolbar).
Also I found that RecyclerView's not working with Coordinator layout. It doesn't trigger AppBar scroll events. If I will wrap it inside NestedSCrollView it will work but RecyclerView's not recycling view holders then so it's doesn't work for me.
Could anyone help to achieve this?
try like this
...
</android.support.design.widget.AppBarLayout>
<android.support.v4.widget.NestedScrollView
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/rv_photos"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:nestedScrollingEnabled="false"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
/>
</android.support.v4.widget.NestedScrollView>
Put your toolbar and linear layout in a CollapsingToolbarLayout. Then use appropriate collapse mode attributes. For example, you could use pin for your toolbar and parallax for your linear layout:
<android.support.design.widget.AppBarLayout>
<android.support.design.widget.CollapsingToolbarLayout
...
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<android.support.v7.widget.Toolbar
...
app:layout_collapseMode="pin"/>
<LinearLayout
...
app:layout_collapseMode="parallax"/>
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
You need the dependency for design support library in your app's build.gradle:
implementation "com.android.support:design:$support_library_version"
More on coordinator and collapsing toolbar layouts
I couldn't implement it in the described way. RecyclerView doesn't send scroll events to AppaBar layout (what is really strange) so I need to split every view on that screen and make recycler view adapter handle them all in one recycler view. Thanks all for answers and time spent on this!
In TabLayout I have 2 tabs, where in first placed FrameLayout with recyclerView and in second tab there ScrollView with LinerLayout in it. And I need to hide ToolBar when i scroll in any tab. When i scroll RecyclerView in first tab toolbar scrolls as well, but when i scroll in second tab it is not. Can't uderstand why.
I've got this main_acrivity.xml
<FrameLayout 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:id="#+id/content_frame"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.CoordinatorLayout
android:id="#+id/coordinator"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<android.support.v4.view.ViewPager
android:id="#+id/pager"
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/app_bar_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_scrollFlags="scroll|enterAlways"/>
<android.support.design.widget.TabLayout
android:id="#+id/tab_layout"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:tabIndicatorColor="#android:color/background_light"
app:tabSelectedTextColor="#android:color/background_light"
app:tabTextColor="#android:color/background_light"/>
</android.support.design.widget.AppBarLayout>
</android.support.design.widget.CoordinatorLayout>
</FrameLayout>
The new scrolling behavior will not work with a regular android.widget.ScrollView, as it doesn't support nested scrolling.
Scroll behaviors rely on Views that support nested scrolling, which is needed to propagate scroll events up the View tree so that the Toolbar knows when to slide up and hide.
The reason it works with the RecyclerView is that it supports nested scrolling by default.
What you need is a NestedScrollView:
NestedScrollView is just like ScrollView, but it supports acting as
both a nested scrolling parent and child on both new and old versions
of Android. Nested scrolling is enabled by default.
So, in your layout that has the ScrollView, replace it with android.support.v4.widget.NestedScrollView, and the scrolling view behavior will work as expected:
<android.support.v4.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="match_parent">
<!-- your content here...... -->
</android.support.v4.widget.NestedScrollView>
I have a TabLayout that I want always pinned to the top, and a Toolbar below that, that when the view is scrolled, scrolls up into the TabLayout.
<android.support.design.widget.CoordinatorLayout
android:id="#+id/main_content"
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"
tools:context=".main.MainActivity">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
android:animateLayoutChanges="true"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar">
<android.support.design.widget.TabLayout
android:id="#+id/tabLayout"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"/>
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
app:layout_scrollFlags="scroll|enterAlways"/>
</android.support.design.widget.AppBarLayout>
<android.support.v4.widget.NestedScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
>
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/imageView2"
android:src="#drawable/music_content"
android:contentDescription="#string/image_chooser_title"
/>
</android.support.v4.widget.NestedScrollView>
</android.support.design.widget.CoordinatorLayout>
You can see here that I've set the Toolbar
app:layout_scrollFlags="scroll|enterAlways"
and not set any scrolling flags for the TabLayout above, since I want it to remain pinned. However, using these settings, the AppBarLayout doesn't scroll at all. If I add a scroll flag to the TabLayout, then they both scroll, and the TabLayout doesn't remain fixed. Is there a way to have the TabLayout remain fixed, while the Toolbar below scrolls up "off screen?"
Pictures can be provided if needed
As per the Android Design Support Library blog post:
One note: all views using the scroll flag must be declared before views that do not use the flag. This ensures that all views exit from the top, leaving the fixed elements behind.
So what you want is not possible with AppBarLayout.
I have a layout (as generated by android studio) where i added a RelativeLayout to the AppBarLayout. The code is below and it looks like this:
Where i am stuck: What i want to achieve is when scrolling the Recyclerview down i want that the green relative layout (which has the id 'controlContainer') scrolls out with it, and when i scroll up it should scroll in (not just on the top but at any place i scroll up in the list)
The Toolbar on top should stay where it is.
<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=".MainActivity">
<android.support.design.widget.AppBarLayout
android:id="#+id/app_bar"
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"
app:popupTheme="#style/AppTheme.PopupOverlay"
/>
<RelativeLayout
android:id="#+id/controlContainer"
android:layout_width="match_parent"
android:layout_height="40dp"
android:background="#android:color/holo_green_dark"
app:layout_scrollFlags="scroll|enterAlways"></RelativeLayout>
</android.support.design.widget.AppBarLayout>
<FrameLayout
android:id="#+id/frameLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
<include layout="#layout/venue_list" />
</FrameLayout>
I thought that using app:layout_scrollFlags="scroll|enterAlways" in the view that should scroll away combined with app:layout_behavior="#string/appbar_scrolling_view_behavior"should achieve that, but it does not do anything. alternatively, when i add those fields to the toolbar itself both layouts scroll away - which is not what i want, i want the toolbar to stay always fixed.
would be nice if anyone could point me in the right direction here? (i hoped it would be possible with using coordinator layout and not hacking some layout manipulation with onscroll listeners?)
Try this in your toolbar code:
app:layout_collapseMode="pin"
app:layout_scrollFlags="scroll|enterAlways"
I found this link helpful: Scrolling Toolbar
When adding scrolling behaviour to a layout with coordinatorLayout like this:
<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">
<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>
<FrameLayout
android:id="#+id/mainContent"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
</FrameLayout>
</android.support.design.widget.CoordinatorLayout>
the mainContent is the part that matters.
The real layout will be inflated inside this container.
Imagining my View consists of a RecyclerView, and a fixed layout at the bottom of the screen.
Does someone know a way to remove the scrolling behavior of the bottom fixed layout and keep the RecyclerView-Toolbar-hide behaviour?
Inside a 'CoordinatorLayout' the views that scroll must be first and only later the non-scrollable views. I managed to solve the issue by placing my non-scrollable layout outside the 'mainContent', just below it