Develop Reference

How to make toolbar edge transparent?

I have a toolbar sitting on top of a tab layout. Both of these will utilize the same color gradient as a background. I'm trying to get rid of the edge on the toolbar or tab layout so that they blend together, because right now there's a black line in between both of them. Is there any way to make this line between them transparent? I've done it before on Xcode before.
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout android:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:openDrawer="start"
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"
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="#drawable/menu_gradient"
android:id="#+id/content">
<android.support.v7.widget.Toolbar
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="#drawable/transparent"
android:id="#+id/main_toolbar"
android:elevation="4dp"
app:titleTextColor="#ffffff"
tools:ignore="MissingConstraints"
android:theme="#style/ThemeOverlay.AppCompat.ActionBar"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:srcCompat="#mipmap/logos_round" />
</android.support.v7.widget.Toolbar>
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:background="#drawable/menu_gradient"
android:layout_height="wrap_content">
<android.support.design.widget.TabLayout
android:layout_height="match_parent"
android:layout_width="match_parent"
android:id="#+id/tabs"
android:elevation="5dp"
android:background="#drawable/transparent"
app:tabTextColor="#color/colorPrimary"
app:tabTextAppearance="#style/customTabText"
app:tabMode="fixed">
</android.support.design.widget.TabLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v4.view.ViewPager
android:id="#+id/viewPager"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1">
</android.support.v4.view.ViewPager>
</LinearLayout>
<android.support.design.widget.NavigationView
android:id="#+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:fitsSystemWindows="true"
app:menu="#menu/activity_main_drawer"
android:background="#color/colorPrimary"/>
</android.support.v4.widget.DrawerLayout>

Include the ToolBar inside the AppBarLayout, above TabLayout as below:
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:background="#drawable/menu_gradient"
android:layout_height="wrap_content">
<android.support.v7.widget.Toolbar
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="#drawable/transparent"
android:id="#+id/main_toolbar"
android:elevation="4dp"
app:titleTextColor="#ffffff"
tools:ignore="MissingConstraints"
android:theme="#style/ThemeOverlay.AppCompat.ActionBar"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:srcCompat="#mipmap/logos_round" />
</android.support.v7.widget.Toolbar>
<android.support.design.widget.TabLayout
android:layout_height="match_parent"
android:layout_width="match_parent"
android:id="#+id/tabs"
android:elevation="5dp"
android:background="#drawable/transparent"
app:tabTextColor="#color/colorPrimary"
app:tabTextAppearance="#style/customTabText"
app:tabMode="fixed">
</android.support.design.widget.TabLayout>
</android.support.design.widget.AppBarLayout>

AppBarLayout with tabs and ViewPager

I have a problem with TabLayoutand AppBarLayout, because I want my tabs to be at the bottom and right now they are at the top, they hide with the image as I scroll up. And there's the second problem - AppBarLayout with image doesn't hide as I scroll the text, it only hides/shows as I try to scroll image at the top
<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:id="#+id/main_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows = "true"
tools:context=".MainActivity">
<android.support.design.widget.AppBarLayout
android:id="#+id/main_appbar"
android:layout_width="match_parent"
android:layout_height="250dp"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"
android:fitsSystemWindows="true">
<android.support.design.widget.CollapsingToolbarLayout
android:id="#+id/main_collapsing"
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/main_backdrop"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="centerCrop"
android:fitsSystemWindows="true"
android:src="#raw/test"
app:layout_collapseMode="parallax"/>
<android.support.v7.widget.Toolbar
android:id="#+id/main_toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_scrollFlags="scroll|enterAlways"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light"
app:layout_collapseMode="pin"/>
<android.support.design.widget.TabLayout
android:id="#+id/sliding_tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"
/>
</android.support.design.widget.CollapsingToolbarLayout>
</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">
</android.support.v4.view.ViewPager>
</android.support.design.widget.CoordinatorLayout>
Edit:
<?xml version="1.0" encoding="utf-8"?>
<ScrollView
xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/fragment_pager_scrollview">
<TextView
android:id="#+id/textView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="16dp"
android:lineSpacingMultiplier="1.2"
android:text="#string/lorem_ip"/>
</ScrollView>

Scroll view doesn't support Appbar behaviors, change it to NestedScrollView and use the following layout:
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
<android.support.design.widget.TabLayout
android:id="#+id/sliding_tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"/>
<android.support.v4.view.ViewPager
android:id="#+id/viewpager"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</LinearLayout

Try to add gravity to your TabLayout like this:
<android.support.design.widget.TabLayout
android:id="#+id/sliding_tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"
/>
Edit:
In order to have the TabLayout below CollapsingToolbarLayout, simply put it into your ViewPager, like this:
<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">
<android.support.design.widget.TabLayout
android:id="#+id/sliding_tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"/>
</android.support.v4.view.ViewPager>

Please change your code to this:
<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:paddingTop="#dimen/app_bar_padding"
android:background="#drawable/dash_bar"
android:layout_height="192dp">
<android.support.design.widget.CollapsingToolbarLayout
android:id="#+id/collapsing_toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:elevation="10dp"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<ImageView
android:id="#+id/expandedImage"
android:layout_width="match_parent"
android:layout_height="200dp"
android:scaleType="centerCrop"
app:layout_collapseMode="parallax" />
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light"
app:layout_collapseMode="parallax">
</android.support.v7.widget.Toolbar>
<android.support.design.widget.TabLayout
android:id="#+id/tab_layout"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:layout_gravity="bottom"
app:tabMaxWidth="0dp"
app:tabGravity="fill"
app:tabIndicatorColor="#ffffff"
app:tabTextColor="#b3ffffff"
android:background="#00000000"
app:tabSelectedTextColor="#ffffff"
app:tabIndicatorHeight="5dp"
app:tabMode="fixed" />
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<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.CoordinatorLayout>
Now to hide the image while scrolling the text, add this line to the View thats scrolling (i am assuming you just used textView and scrollbars there):
app:layout_behavior="#string/appbar_scrolling_view_behavior"

CoordinatorLayout with full screen background image

I tried to get this result by CoordinatorLayout but unable to set fullscreen image on background which expand on whole screen same like in image. I tried several ways like putting LinearLayout inside CollapsingToolbarLayout but not getting close to layout what i want to get.
I tried several way to achieve this but not getting anywhere.please help
<?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:clickable="true"
android:focusable="true"
android:fitsSystemWindows="true"
android:background="?android:attr/colorBackground"
android:id="#+id/viewuserProfileMain"
android:layout_width="match_parent"
android:layout_height="match_parent">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="20dp">
<android.support.design.widget.AppBarLayout
android:id="#+id/appbarLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar">
<android.support.design.widget.CollapsingToolbarLayout
android:id="#+id/collapsing_toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
app:contentScrim="?attr/colorPrimary"
app:expandedTitleMarginEnd="64dp"
app:expandedTitleMarginStart="48dp"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_collapseMode="parallax"
android:src="#drawable/baby"
android:scaleType="centerCrop"
app:layout_collapseParallaxMultiplier="0.7"/>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/diagonal_cut_layerlist">
<de.hdodenhof.circleimageview.CircleImageView
android:layout_width="100dp"
android:layout_height="100dp"
android:background="#color/primary"
/>
</RelativeLayout>
</RelativeLayout>
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_collapseMode="pin"
app:layout_scrollFlags="scroll|enterAlways">
</android.support.v7.widget.Toolbar>
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
</RelativeLayout>
<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.v4.widget.NestedScrollView>
</android.support.design.widget.CoordinatorLayout>

What you should do is make another layout set it's background color and have another RelativeLayout in that. Then include you current layout into that one and it will be easy to handle for you.
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:clickable="true"
android:focusable="true"
android:fitsSystemWindows="true"
android:background="?android:attr/colorBackground"
android:id="#+id/viewuserProfileMain"
android:layout_width="match_parent"
android:layout_height="match_parent">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="20dp">
<include layout="#layout/yourCurrentLayout except it's background"/>
</RelativeLayout>
</android.support.design.widget.CoordinatorLayout>

How to create a collapsing toolbar with a ViewPager inside?

I have a ScrollView with a ViewPager (for the images) and a LinearLayout for the dot indicators. I also want a collapsible toolbar with the ViewPager and the LinearLayout inside it. I have added the my code as well as a code for the collapsible toolbar. But I don't know how to implement the ViewPager and the LinearLayout inside that. Please somebody give me the correct working code?
my code
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/aboutslscrollview"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.v4.view.ViewPager
android:id="#+id/viewPager"
android:layout_width="match_parent"
android:layout_height="250dp" />
<LinearLayout
android:id="#+id/SliderDots"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignBottom="#id/viewPager"
android:layout_marginBottom="20dp"
android:gravity="center_horizontal"
android:orientation="horizontal" />
</RelativeLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:background="#FFFFFF">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="About"
android:textColor="#color/colorPrimary"
android:paddingHorizontal="10dp"
android:textSize="20sp" />
</LinearLayout>
</LinearLayout>
</ScrollView>
code found for the collapsible toolbar
<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/app_bar_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<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"
app:contentScrim="?attr/colorPrimary">
<ImageView
android:id="#+id/expandedImage"
android:layout_width="match_parent"
android:layout_height="200dp"
android:src="#drawable/beach_scene"
android:scaleType="centerCrop"
app:layout_collapseMode="parallax"
app:layout_collapseParallaxMultiplier="0.7"
/>
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_collapseMode="pin" >
</android.support.v7.widget.Toolbar>
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v4.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#android:color/white"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="#string/sample_string"/>
</android.support.v4.widget.NestedScrollView>
</android.support.design.widget.CoordinatorLayout>
Can you please tell me where to add the ViewPager and dotindicator(LinearLayout) inside the collapsible toolbar?

The container layout-RelativeLayout of the ViewPager and LinearLayout should be inside CollapsingToolbarLayout. And set the property like this to make it collapsible with scroll events.
app:layout_collapseMode="parallax"
Solution:
<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.birjuvachhani.myapplication.ScrollingActivity">
<android.support.design.widget.AppBarLayout
android:id="#+id/app_bar"
android:layout_width="match_parent"
android:layout_height="#dimen/app_bar_height"
android:fitsSystemWindows="true"
android:theme="#style/AppTheme.AppBarOverlay">
<android.support.design.widget.CollapsingToolbarLayout
android:id="#+id/toolbar_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
app:titleEnabled="false"
app:contentScrim="?attr/colorPrimary"
app:layout_scrollFlags="scroll|exitUntilCollapsed"
app:toolbarId="#+id/toolbar">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_collapseMode="parallax">
<android.support.v4.view.ViewPager
android:id="#+id/viewPager"
android:layout_width="match_parent"
android:layout_height="250dp" />
<LinearLayout
android:id="#+id/SliderDots"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignBottom="#id/viewPager"
android:layout_marginBottom="20dp"
android:gravity="center_horizontal"
android:orientation="horizontal" />
</RelativeLayout>
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_collapseMode="pin"
app:popupTheme="#style/AppTheme.PopupOverlay" />
</android.support.design.widget.CollapsingToolbarLayout>
</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" >
<!-- Main content goes here. -->
</android.support.v4.widget.NestedScrollView>

Fragment content overlapping toolbar

Implementing a BottomNavigationView with viewpager and tablayout.Each navigation view is a fragment in first fragment ("NewsFeedFragment") i want to use tablayout attached with a viewpager. Result come correct but the content of the fragment overlaps the parent toolbar.
Here is how i am trying to use it.
Home.xml
<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:id="#+id/main_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".activities.M1Activity">
<android.support.design.widget.AppBarLayout
android:id="#+id/appBarLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:elevation="6dp">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:background="?attr/colorPrimary"
android:minHeight="?attr/actionBarSize"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"
app:elevation="0dp"
app:layout_scrollFlags="scroll|enterAlways"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light" />
</android.support.design.widget.AppBarLayout>
<FrameLayout
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"></FrameLayout>
<android.support.design.widget.BottomNavigationView
android:id="#+id/navigation"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:background="?android:attr/windowBackground"
app:menu="#menu/navigation" />
NewsFragment.xml
<LinearLayout 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/activity_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".activities.HomeActivity">
<android.support.design.widget.TabLayout
android:id="#+id/tab_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
android:minHeight="?attr/actionBarSize"
app:tabGravity="fill"
app:tabMode="fixed"
app:tabSelectedTextColor="#color/colorAccent"
app:tabTextColor="#FFF" />
<android.support.v4.view.ViewPager
android:id="#+id/pager"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
android:layout_width="match_parent"
android:layout_height="match_parent" />
Here is result i get.
And what i basically trying exactly to implement is.

Add the tab layout inside AppBarLayout as shown below
<?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.journaldev.tablayoutappbar.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.TabLayout
android:id="#+id/tabs"
android:layout_width="match_parent"
app:tabGravity="fill"
app:tabMode="fixed"
android:layout_height="wrap_content"/>
</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">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
android:orientation="vertical">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/sample_text"/>
</LinearLayout>
</android.support.v4.widget.NestedScrollView>
</android.support.design.widget.CoordinatorLayout>

<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.support.design.widget.AppBarLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/appbar_layout"
android:layout_width="match_parent"
android:layout_height="200dp"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar">
<android.support.design.widget.CollapsingToolbarLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
app:contentScrim="?attr/colorPrimary"
app:layout_scrollFlags="scroll|exitUntilCollapsed"
app:titleEnabled="false">
Map view is just a view that you want to collapse on scroll replace with your widget
<com.google.android.gms.maps.MapView
android:id="#+id/mapView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="centerCrop"
app:layout_collapseMode="parallax" />
Widget that you want to display after collapse
<android.support.design.widget.TabLayout
android:id="#+id/tab_layout"
app:layout_collapseMode="pin"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
android:minHeight="?attr/actionBarSize"
app:tabGravity="fill"
app:tabMode="fixed"
app:tabSelectedTextColor="#color/colorAccent"
app:tabTextColor="#FFF" />
<android.support.v4.view.ViewPager
android:id="#+id/pager"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</android.support.design.widget.CollapsingToolbarLayout>
</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">
All your component to display should be here
</android.support.v4.widget.NestedScrollView>
</android.support.design.widget.CoordinatorLayout >