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>

How to put a spinner between a list view and a App Bar

I am currently working on an application to help manage bills. I have an activity that list the bills. I am trying to put a spinner between a list of bills and the title at the top. Is there a way to put the spinner so that it is at the top of the listView but below the app bar.?
This is what the app looks like:
<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:contentScrim="?attr/colorPrimary"
app:layout_scrollFlags="scroll|exitUntilCollapsed"
app:toolbarId="#+id/toolbar">
<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>
<TextView
android:id="#+id/dateRangeView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="#string/date_range"
android:textColor="#android:color/background_light"
android:textSize="24sp"
android:textStyle="bold"
tools:textAlignment="center"
tools:textColor="#android:color/white" />
<ProgressBar
style="?android:attr/progressBarStyleLarge"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/progressBarBillList"
android:progressDrawable="#drawable/circular_progress_bar"
android:layout_gravity="center" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
app:layout_anchor="#+id/app_bar"
android:id="#+id/bill_dates"
app:layout_anchorGravity="bottom|center">
<Spinner
android:id="#+id/spinner"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="top"
android:layout_marginHorizontal="16dp"
android:background="#android:color/background_light"
android:entries="#array/date_arrays"
android:prompt="#string/bill_date_prompt"
android:spinnerMode="dialog"
app:layout_anchor="#+id/listBillView"
app:layout_anchorGravity="top|right" />
</LinearLayout>
<include layout="#layout/content_bill_list" app:layout_anchor="#+id/bill_dates" />
</android.support.design.widget.CoordinatorLayout>
content_bill_list.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.NestedScrollView 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:fillViewport="true"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:context="com.yourdirectlink.ydlcms.BillListActivity"
tools:showIn="#layout/activity_bill_list">
<ListView
android:id="#+id/listBillView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true" >
</ListView>
</android.support.v4.widget.NestedScrollView>

DISMISS THIS
As suggested in the comments why not use a LinearLayout with vertical orientation and put the spinner as the first child with height wrap_content and then below it the listview with height 0dp and layout_weight set to 1
NEW PROPOSAL
Take a look a this layout. I already tried at a test app:
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto">
<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/app_bar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true">
<android.support.design.widget.CollapsingToolbarLayout
android:id="#+id/toolbar_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
app:contentScrim="?attr/colorPrimary"
app:layout_scrollFlags="scroll|exitUntilCollapsed"
app:toolbarId="#id/toolbar">
<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>
<LinearLayout
app:layout_behavior="#string/appbar_scrolling_view_behavior"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<TextView
android:id="#+id/dateRangeView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="#string/date_range"
android:textColor="#android:color/background_light"
android:textSize="24sp"
android:textStyle="bold"
tools:textAlignment="center"
tools:textColor="#android:color/white" />
<Spinner
android:id="#+id/spinner"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="top"
android:layout_marginHorizontal="16dp"
android:background="#android:color/background_light"
android:entries="#array/date_arrays"
android:prompt="#string/bill_date_prompt"
android:spinnerMode="dialog"
app:layout_anchor="#+id/listBillView"
app:layout_anchorGravity="top|right" />
<ProgressBar
style="?android:attr/progressBarStyleLarge"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/progressBarBillList"
android:layout_gravity="center" />
<include
layout="#layout/content_bill_list"
app:layout_anchor="#+id/bill_dates"/>
</LinearLayout>
</android.support.design.widget.CoordinatorLayout>
I have to comment the popup theme because I don't have it.
Also you need to use a theme with .NoActionBar because you're suppling the action bar and on the Activity containing this layout you need to call:
Toolbar toolbar = findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
Was it what you're looking for?

android - collapsing toolbar with tablayout set background

My app contains a collapsing toolbar with a tabview. The tabs have an own background color, my #color/colorPrimary and the collapsing toolbar has a set background image. Now I would like to 'merge' them: the tablayout should be transparent, so the background image reaches from the toolbar down including the tabs. Like it is not divided by the background anymore.
I set up the layout and tried to make the tabs transparent, but like this the image won't continue.
My XML file:
<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.te.e6.MainActivity">
<android.support.design.widget.AppBarLayout
android:id="#+id/appBar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
android:theme="#style/AppTheme.AppBarOverlay">
<android.support.design.widget.CollapsingToolbarLayout
android:id="#+id/colbar"
android:layout_width="match_parent"
android:layout_height="175dp"
app:expandedTitleGravity="center|bottom"
android:fitsSystemWindows="true"
app:contentScrim="?attr/colorPrimary"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<ImageView
android:id="#+id/backg"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
android:scaleType="centerCrop"
android:src="#drawable/materialbackground"
app:layout_collapseMode="parallax" />
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:expandedTitleGravity="center|bottom"
app:layout_collapseMode="pin"
app:popupTheme="#style/AppTheme.PopupOverlay"/>
</android.support.design.widget.CollapsingToolbarLayout>
<android.support.design.widget.TabLayout
android:id="#+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#android:color/transparent"
app:layout_anchor="#id/appBar"
app:layout_anchorGravity="bottom">
<android.support.design.widget.TabItem
android:id="#+id/tabItem"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="A" />
<android.support.design.widget.TabItem
android:id="#+id/tabItem2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="B" />
<android.support.design.widget.TabItem
android:id="#+id/tabItem3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="C" />
</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="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior" />
</android.support.design.widget.CoordinatorLayout>

I have also been searching for a solution and I stumbled across this approach that helped me a bit. Finally I got it working. Here I post my solution using the latest Material3:
<layout xmlns:tools="http://schemas.android.com/tools"
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<androidx.coordinatorlayout.widget.CoordinatorLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<com.google.android.material.appbar.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="top"
android:id="#+id/list_appbarlayout_tabs">
<com.google.android.material.appbar.MaterialToolbar
android:id="#+id/list_collapsing_toolbar_tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="top"
app:contentInsetStart="0dp"
app:layout_scrollFlags="scroll|enterAlways|snap">
<com.google.android.material.tabs.TabLayout
android:id="#+id/tablayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:tabMode="fixed">
<com.google.android.material.tabs.TabItem
android:id="#+id/tab1"
android:layout_width="wrap_content"
android:layout_height="20dp" />
<com.google.android.material.tabs.TabItem
android:id="#+id/tab2"
android:layout_width="wrap_content"
android:layout_height="40dp"/>
<com.google.android.material.tabs.TabItem
android:id="#+id/tab3"
android:layout_width="wrap_content"
android:layout_height="40dp" />
</com.google.android.material.tabs.TabLayout>
</com.google.android.material.appbar.MaterialToolbar>
</com.google.android.material.appbar.AppBarLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
<ImageView
android:id="#+id/list_background"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:alpha="0.2"
android:padding="24dp"
app:srcCompat="#drawable/bg" />
<com.google.android.material.progressindicator.LinearProgressIndicator
android:id="#+id/list_progress_indicator"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:indeterminate="true" />
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/recycler_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#+id/list_progress_indicator"
android:layout_marginEnd="8dp">
</androidx.recyclerview.widget.RecyclerView>
</RelativeLayout>
<com.google.android.material.bottomappbar.BottomAppBar
android:id="#+id/list_bottom_bar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
app:hideOnScroll="true"
app:menu="#menu/bottombar"
/>
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="#+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:contentDescription="#string/list_fab_add_contentdesc"
app:layout_behavior="com.google.android.material.behavior.HideBottomViewOnScrollBehavior"
app:layout_anchor="#id/list_bottom_bar"
app:srcCompat="#drawable/ic_add"
/>
</androidx.coordinatorlayout.widget.CoordinatorLayout>
</layout>
Pay special attention to
app:layout_scrollFlags="scroll|enterAlways|snap">
For the Material Toolbar
and
app:layout_behavior="#string/appbar_scrolling_view_behavior">
for the relative layout!
EDIT:
There is a stupid margin at the start of the menu, to get rid of it add app:contentInsetStart="0dp" which is set to 16 dp by default (updated also the layout above)

Here is a working example:
<?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:id="#+id/app_bar"
android:layout_width="match_parent"
android:layout_height="200dp"
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:contentScrim="?attr/colorPrimary"
app:expandedTitleMarginBottom="56dp"
app:layout_scrollFlags="scroll|exitUntilCollapsed"
app:toolbarId="#+id/toolbar">
<ImageView
android:id="#+id/backg"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
android:scaleType="centerCrop"
android:src="#drawable/ic_launcher_background"
app:layout_collapseMode="parallax" />
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:layout_marginBottom="48dp"
app:layout_collapseMode="pin"
app:popupTheme="#style/AppTheme.PopupOverlay" />
<android.support.design.widget.TabLayout
android:layout_width="match_parent"
android:layout_height="48dp"
android:layout_gravity="bottom">
<android.support.design.widget.TabItem
android:id="#+id/tabItem"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="A" />
<android.support.design.widget.TabItem
android:id="#+id/tabItem2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="B" />
<android.support.design.widget.TabItem
android:id="#+id/tabItem3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="C" />
</android.support.design.widget.TabLayout>
</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.design.widget.CoordinatorLayout>

Align Bottom of ColapsingToolbarLayout

I have Activity where I have a CollapsingTableLayout and I'd to display in the bottom of the screen an Editext but I have some problems
When I scroll to bottom, all text not displayed
And when I clic in Editext in the bottom, Toolbar is not displayed
I follow this link to do this
Here is my Layout
<?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"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.CoordinatorLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context=".DetailActivity">
<android.support.design.widget.AppBarLayout
android:id="#+id/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/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">
<ImageView
android:id="#+id/image_toolbar"
android:layout_width="match_parent"
android:layout_height="250dp"
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:layout_collapseMode="pin"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light" />
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v4.widget.NestedScrollView
android:id="#+id/scroll"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
app:behavior_overlapTop="64dp">
<android.support.v7.widget.CardView
app:cardElevation="6dp"
android:id="#+id/detail_info"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="10dp">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:id="#+id/detail_title"
android:text="Title"
android:textSize="20dp"
android:layout_marginHorizontal="10dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textColor="#android:color/black"/>
<TextView
android:id="#+id/detail_description"
android:text="Description"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#+id/detail_title"
android:textColor="#android:color/black"
android:layout_margin="10dp"/>
</RelativeLayout>
</android.support.v7.widget.CardView>
</android.support.v4.widget.NestedScrollView>
</android.support.design.widget.CoordinatorLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:background="#android:color/darker_gray">
<EditText
android:id="#+id/detail_comment"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="6"/>
<ImageView
android:id="#+id/detail_add_comment"
android:text="add"
android:layout_width="0dp"
android:layout_height="match_parent"
android:src="#mipmap/ic_send"
android:layout_weight="1"/>
</LinearLayout>
</RelativeLayout>
Thank you for help

Recyclerview with inside nested scrollview?

I am using multiple View-holder inside recycler which placed inside nested scroll view,There is a change in Natural behaviour of onBindViewHolder() Recycler view because of Nested Scroll,getItemViewType() all items are called inside onBindViewHolder() when initiate recycler adapter,For Example I have 20 Items means in normal scenario only three items called when initiate,but in case of nested scroll view all 20 views create on first load.
Xml File
<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="fill_parent"
android:layout_height="fill_parent"
android:background="#color/light_gray_vd">
<android.support.design.widget.AppBarLayout
android:id="#+id/app_bar_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
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="wrap_content"
app:contentScrim="#color/primaryColor"
app:expandedTitleMarginEnd="16dp"
app:expandedTitleMarginStart="48dp"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<FrameLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
app:layout_collapseMode="parallax">
<include
android:id="#+id/inc_gallery"
layout="#layout/proj_galery_new"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
</FrameLayout>
<View
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize" />
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar1"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:layout_gravity="top"
app:layout_collapseMode="pin"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light">
<include
android:id="#+id/toolbar_header_view"
layout="#layout/header_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:visibility="gone" />
</android.support.v7.widget.Toolbar>
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v4.widget.NestedScrollView
android:id="#+id/vde_mv_scroll_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
<FrameLayout
android:id="#+id/rlCollapseScroll"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.RecyclerView
android:id="#+id/view_recycler"
android:layout_width="match_parent"
android:layout_height="wrap_content">
</android.support.v7.widget.RecyclerView>
</FrameLayout>
</android.support.v4.widget.NestedScrollView>
</android.support.design.widget.CoordinatorLayout>

remove NestedScrollView and frameLayout, and set app:layout_behavior="#string/appbar_scrolling_view_behavior" for recycleView
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"
android:id="#+id/main_content"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#color/light_gray_vd">
<android.support.design.widget.AppBarLayout
android:id="#+id/app_bar_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
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="wrap_content"
app:contentScrim="#color/primaryColor"
app:expandedTitleMarginEnd="16dp"
app:expandedTitleMarginStart="48dp"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<FrameLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
app:layout_collapseMode="parallax">
<include
android:id="#+id/inc_gallery"
layout="#layout/proj_galery_new"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
</FrameLayout>
<View
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize" />
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar1"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:layout_gravity="top"
app:layout_collapseMode="pin"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light">
<include
android:id="#+id/toolbar_header_view"
layout="#layout/header_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:visibility="gone" />
</android.support.v7.widget.Toolbar>
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v7.widget.RecyclerView
android:id="#+id/view_recycler"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
android:scrollbars="vertical">
</android.support.v7.widget.RecyclerView>
</android.support.design.widget.CoordinatorLayout>

The issue is both Recyclerview and NestedScrollview are scrollable. By removing one, you should be able to achieve the effect you wanted.
So, try using only Recyclerview without putting it inside NestedScrollView. 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"
android:id="#+id/main_content"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#color/light_gray_vd"
>
<android.support.design.widget.AppBarLayout
android:id="#+id/app_bar_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
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="wrap_content"
app:contentScrim="#color/primaryColor"
app:expandedTitleMarginEnd="16dp"
app:expandedTitleMarginStart="48dp"
app:layout_scrollFlags="scroll|exitUntilCollapsed"
>
<FrameLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
app:layout_collapseMode="parallax"
>
<include
android:id="#+id/inc_gallery"
layout="#layout/proj_galery_new"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/>
</FrameLayout>
<View
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
/>
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar1"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:layout_gravity="top"
app:layout_collapseMode="pin"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light"
>
<include
android:id="#+id/toolbar_header_view"
layout="#layout/header_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:visibility="gone"
/>
</android.support.v7.widget.Toolbar>
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v7.widget.RecyclerView
android:id="#+id/view_recycler"
android:layout_width="match_parent"
android:layout_height="wrap_content"
/>
</android.support.design.widget.CoordinatorLayout>
You can also reference this example or read this article from Code path about how to handle scroll with CoordinatorLayout
CheeseSquare from Chris Bane also has a good CoordinatorLayout example

I also had same issue after Android Support Library 23.2.0 update.
Set RecyclerView's android:layout_height to match_parent.
And disable new automeasure feature (read more):
LinearLayoutManager layoutManager = new LinearLayoutManager(getContext(),
LinearLayoutManager.VERTICAL, false);
layoutManager.setAutoMeasureEnabled(false);
recyclerView.setLayoutManager(layoutManager);