Develop Reference

The view is not a child of CoordinatorLayout

I am getting java.lang.RuntimeException: Unable to start activity java.lang.IllegalArgumentException: The view is not a child of CoordinatorLayout.working with bottom sheet, I have tried lot of combination but still i am not getting solution. please tell me any solution.Thank you in advance.
<?xml version="1.0" encoding="utf-8"?>
<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/beyprod"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<LinearLayout
android:id="#+id/toolbarLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:orientation="vertical">
<include
android:id="#+id/toolbar"
layout="#layout/toolbar" />
</LinearLayout>
<!-- <LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<FrameLayout
android:id="#+id/bottom_sheet"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_behavior="#string/bottom_sheet_behavior" />
</LinearLayout>-->
<android.support.v4.widget.NestedScrollView
android:id="#+id/bottom_sheet"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true"
app:layout_behavior="#string/bottom_sheet_behavior">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".retailerModule.cart.activity.AddressListActivity">
<ProgressBar
android:id="#+id/progress_bar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#+id/relaLaySearch"
android:layout_gravity="center|top"
android:visibility="gone" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="#+id/confirmBtn"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.v7.widget.RecyclerView
android:id="#+id/recycler"
android:layout_width="match_parent"
android:layout_height="wrap_content">
</android.support.v7.widget.RecyclerView>
</LinearLayout>
<TextView
android:id="#+id/addNewAddress"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_gravity="right"
android:layout_marginTop="15dp"
android:layout_marginRight="10dp"
android:layout_marginBottom="40dp"
android:background="#color/green"
android:gravity="center"
android:padding="10dp"
android:text="New Address"
android:textColor="#color/colorWhite" />
</LinearLayout>
<android.support.v7.widget.AppCompatButton
android:id="#+id/continueBtn"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_gravity="right"
android:background="#color/color_blue"
android:gravity="center"
android:text="SAVE"
android:textColor="#color/colorWhite"
android:visibility="gone" />
</RelativeLayout>
</LinearLayout>
</android.support.v4.widget.NestedScrollView>
</LinearLayout>
When i tried to run this line getting exception
NestedScrollView mBehavior = BottomSheetBehavior.from(bottom_sheet);

It tells you that you can only put a BottomSheetBehavior into a CoordinatorLayout.
So make CoordinatorLayout as your root layout and place it directly here (not in some nested views)

Fragment not displaying in fullscreen when using viewpager

I want my viewpager display fragment in the full screen.It is not displaying only in the half of the screen.I am stuck with this issue from past two days.So please help me to come out of this issue.Thanks in advance.
This is my activity code named activity_subcategory.xml -
<LinearLayout
android:id="#+id/main_layout"
android:orientation="vertical"
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.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
app:navigationIcon="#drawable/ic_arrow_back"
android:minHeight="?attr/actionBarSize"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light"/>
<!-- our tablayout to display tabs -->
<android.support.design.widget.TabLayout
android:id="#+id/tabLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
android:layout_gravity="center_horizontal"
app:tabMode="scrollable"
app:tabSelectedTextColor="#color/buttoncolor"
android:minHeight="?attr/actionBarSize"
app:tabIndicatorColor="#color/buttoncolor"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"/>
<!-- View pager to swipe views -->
<android.support.v4.view.ViewPager
android:id="#+id/pager"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
This is my Fragment code named singlesubcategory.xml -
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView android:layout_width="match_parent"
android:layout_height="wrap_content"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_margin="10dp"
xmlns:android="http://schemas.android.com/apk/res/android">
<LinearLayout 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="wrap_content"
android:orientation="horizontal">
<ImageView
android:id="#+id/imgcat"
android:layout_width="100dp"
android:layout_height="100dp"
android:adjustViewBounds="true"
android:layout_margin="5dp"
android:src="#drawable/laundry1" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="5dp"
android:orientation="vertical">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:id="#+id/txtcat"/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="right"
android:weightSum="10"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="2dp"
android:layout_weight="7"
android:layout_marginRight="2dp"
android:text="₹ 30"
android:gravity="center"/>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
app:srcCompat="#drawable/ic_addtocart"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="2dp"
android:layout_weight="1"
android:layout_marginRight="2dp"
android:text="0"/>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
app:srcCompat="#drawable/ic_removecart"/>
</LinearLayout>
</LinearLayout>
</LinearLayout>
</android.support.v7.widget.CardView>
See this image. i want that card display in full width of screen.
This is my recyclerview code.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:orientation="vertical"
android:layout_height="match_parent">
<android.support.v7.widget.RecyclerView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/rcv"></android.support.v7.widget.RecyclerView>
</LinearLayout>

Change viewpager height
<android.support.v4.view.ViewPager
android:id="#+id/pager"
android:layout_width="match_parent"
android:layout_height="match_parent" />

in your xml activity_subcategory.xml
change parent Linear layout
<LinearLayout
android:id="#+id/main_layout"
android:orientation="vertical"
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="fill_parent">
change height to fill parent.

Use this code
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_gravity="center"
android:gravity="center"
android:layout_height="match_parent">
<android.support.v7.widget.RecyclerView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="#+id/rcv"
android:layout_gravity="center"
android:foregroundGravity="center">
</android.support.v7.widget.RecyclerView>

for view pager use fill parent
<android.support.v4.view.ViewPager
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/viewPager"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
/>

How to add a recyclerView to the bottom of my layout

I want to add RecyclerView at the bottom to my layout, but it is in wrong position.
Now I Have:
Now RecyclerView is too far down and cuts half of RecyclerView. I Only want RecyclerView at the bottom of my layout but I can't do it.
This is my layout code:
<android.support.constraint.ConstraintLayout 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/map"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="showresultactivity.SlideTabsActivity">
<com.google.android.gms.maps.MapView
android:id="#+id/mapView"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<ProgressBar
android:id="#+id/progress"
style="?android:attr/progressBarStyleLarge"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:visibility="gone"
app:layout_constraintBottom_toBottomOf="#+id/mapView"
app:layout_constraintEnd_toEndOf="#+id/mapView"
app:layout_constraintStart_toStartOf="#+id/mapView"
app:layout_constraintTop_toTopOf="#+id/mapView" />
<FrameLayout
android:id="#+id/frameLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true" /><!--this line make too far down, without it my recyclerview will be at the top of my layout-->
</android.support.constraint.ConstraintLayout>
My RecyclerView layout:
<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:id="#+id/map"
android:layout_width="match_parent"
android:layout_height="wrap_content"
tools:context="showresultactivity.SlideTabsActivity">
<android.support.v7.widget.RecyclerView
android:id="#+id/recyclerViewInfoWindowMarker"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_alignWithParentIfMissing="true"
>
</android.support.v7.widget.RecyclerView>
My recyclerView row item xml :
<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="wrap_content">
<LinearLayout
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:id="#+id/map"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#FCFCFC"
tools:context="showresultactivity.SlideTabsActivity">
<android.support.v7.widget.CardView
android:id="#+id/cardView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:cardCornerRadius="3dp"
app:cardElevation="1dp"
android:layout_margin="5dp"
app:cardPreventCornerOverlap="false">
<RelativeLayout
android:padding="8dp"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="#+id/imagesSrcUrl"
android:layout_width="100dp"
android:layout_height="100dp"
android:src="#drawable/ic_launcher"
android:scaleType="centerCrop" />
<TextView
android:id="#+id/first"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_alignStart="#+id/description"
android:text="some text"
android:textSize="20dp"
android:textStyle="bold" />
<TextView
android:id="#+id/third"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_toRightOf="#+id/first"
android:textSize="12dp"
android:text="some text"
android:layout_marginTop="5dp"
android:gravity="right"
android:textAlignment="gravity"
/>
<TextView
android:id="#+id/description"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_toRightOf="#+id/imagesSrcUrl"
android:layout_below="#id/first"
android:textSize="12dp"
android:text="some text"
android:layout_marginLeft="10dp"
android:layout_marginTop="5dp"
/>
</RelativeLayout>
</android.support.v7.widget.CardView>
</LinearLayout>
<ImageButton
android:layout_centerVertical="true"
android:id="#+id/cardViewNext"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:background="#drawable/circle_shape"
android:src="#drawable/ic_next_black" />
<ImageButton
android:layout_centerVertical="true"
android:id="#+id/cardVievPrevious"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/circle_shape"
android:src="#drawable/ic_previous_black" />
EDIT
I forgot that I have also bottom navigation and the recycler should be at the bottom map but above the bottom navigation.
Layout with bottom nav:
<?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"
tools:context="SlideTabsActivity"
android:layout_height="match_parent"
android:layout_width="match_parent"
>
<android.support.design.widget.CoordinatorLayout
android:id="#+id/main_content"
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:paddingTop="#dimen/appbar_padding_top"
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:layout_weight="1"
android:background="?attr/colorPrimary"
app:layout_scrollFlags="scroll|enterAlways"
app:popupTheme="#style/AppTheme.PopupOverlay"
app:title="#string/app_name">
</android.support.v7.widget.Toolbar>
<android.support.design.widget.TabLayout
android:id="#+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.design.widget.TabItem
android:id="#+id/tabItem"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/tab_text_1" />
<android.support.design.widget.TabItem
android:id="#+id/tabItem2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/tab_text_2" />
<android.support.design.widget.TabItem
android:id="#+id/tabItem3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/tab_text_3" />
</android.support.design.widget.TabLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v4.view.ViewPager
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior" />
<include layout="#layout/bottom_navigation_view" android:id="#+id/bottom_nav_view" />
</android.support.design.widget.CoordinatorLayout>
</RelativeLayout>
bottom_navigation_view:
<merge xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/bottomRelativeLayout">
<android.support.design.widget.BottomNavigationView
android:id="#+id/bottom_navigation"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:background="#drawable/white_grey_border_bottom"
app:menu="#menu/bottom_navigation_main" />
</RelativeLayout>

Adding this line to your framelayout would help you achieve that positioning:
app:layout_constraintBottom_toBottomOf="parent"
Also remember to set the height of your frame layout to: wrap content. The purpose of the line above is to fix/pin your frame layout to the bottom of your constraint layout; any eventual expansion would be upward. Therefore, the contents of your frame layout will never overlap. If there is need for extra space, your frame layout will project upwards while still being fixed to the bottom of the constraint layout.
You can check this for reference on more XML attributes on Constraint layouts: https://developer.android.com/reference/android/support/constraint/ConstraintLayout.html
PS:
You can remove the android:layout_alignParentBottom="true" part of your frame layout; it's not necessary anymore

Toolbar overlaps LinearLayout

I have a LinearLayout with 2 inner LinearLayouts. If I add the Toolbar in this layout-file it always overlaps the whole layout. So only the Toolbar is visible. In the other layout-files it worked without any problem.
<LinearLayout 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"
android:orientation="horizontal"
tools:context="de.dk.mafi.ActMain">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="40dp"
android:background="?attr/colorPrimary"
android:fitsSystemWindows="true"
android:minHeight="?attr/actionBarSize"
android:padding="2dp"
app:titleMarginStart="20dp"
app:titleTextAppearance="#style/MyMaterialTheme.Base.TitleTextStyle"
app:titleTextColor="#color/textColorPrimary">
<TextView
android:id="#+id/toolbar_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="TEST"
android:textColor="#android:color/white"
android:textStyle="bold|italic"/>
</android.support.v7.widget.Toolbar>
<LinearLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_margin="20dp"
android:layout_weight="1"
android:orientation="vertical">
<TextView
android:id="#+id/text"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:background="#drawable/border"
android:padding="10dp"
android:text="#string/welcome"/>
<Button android:id="#+id/button2" android:layout_width="match_parent"
android:layout_height="wrap_content" android:text="Favoriten"/>
</LinearLayout>
<LinearLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_margin="20dp"
android:layout_weight="1"
android:orientation="vertical">
<ImageView
android:id="#+id/imageView"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:src="#drawable/training"/>
<Button android:id="#+id/button" android:layout_width="match_parent"
android:layout_height="wrap_content" android:text="Hauptmenü"/>
</LinearLayout>
What is the problem here?

The first LinearLayout has a wrong orientation. It should be set with vertical, instead of horizontal which gives the other children (as the inner LinearLayouts) to be draw after the Toolbar on the right outside the width screen. Change to:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
...
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:fitsSystemWindows="true">
Then, remove the android:fitsSystemWindows="true" from the Toolbar.
EDIT:
I just did this, it works as expected:
<LinearLayout 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"
android:orientation="vertical"
android:fitsSystemWindows="true"
tools:context="...">
<include layout="#layout/include_toolbar" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:background="#color/blue"/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:background="#color/red"/>
</LinearLayout>
Where I'm reusing this Toolbar layout on other Activities:
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.Toolbar
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"/>
Output:
My test contains above/below inner children, but to keep your requirements, juste add a parent container for the children, easily do as:
<LinearLayout ...>
<include layout="#layout/include_toolbar" />
<!-- use a parent container with horizontal orientation -->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal">
<LinearLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1" .../>
<LinearLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1" .../>
</LinearLayout>
</LinearLayout>

Add Footer to CoordinatorLayout

I want to add a Footer to CoordinatorLayout which contains a TabView + ViewPager.
Here is the main.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"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:openDrawer="start">
<android.support.design.widget.CoordinatorLayout
android:id="#+id/main_content"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context="com.entree.entree.activity.StoreActivity">
<android.support.design.widget.AppBarLayout
android:id="#+id/appbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingTop="#dimen/appbar_padding_top"
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="#android:color/black"
app:layout_scrollFlags="scroll|enterAlways"
app:popupTheme="#style/AppTheme.PopupOverlay">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/ic_action_tray"
android:layout_gravity="right"
android:layout_marginRight="15dp"
android:scaleType="centerInside"/>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/ic_action_find"
android:layout_gravity="right"
android:scaleType="centerInside"
android:layout_marginRight="10dp"
/>
</android.support.v7.widget.Toolbar>
<android.support.design.widget.TabLayout
android:id="#+id/tabs"
android:background="#android:color/white"
app:tabIndicatorColor="#00000000"
style="#style/MyCustomTabLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</android.support.design.widget.AppBarLayout>
<android.support.v4.view.ViewPager
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
android:layout_above="#+id/llTray" />
</android.support.design.widget.CoordinatorLayout>
<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:visibility="gone"
android:fitsSystemWindows="true"
app:headerLayout="#layout/nav_header_search"
app:menu="#menu/activity_search_drawer" />
</android.support.v4.widget.DrawerLayout>
And here is the Xml Content:
<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"
android:layout_below="#+id/container"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:context="com.entree.entree.activity.StoreActivity$PlaceholderFragment">
<GridView
android:id="#+id/gridView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:numColumns="1"
android:stretchMode="columnWidth">
</GridView>
<LinearLayout
android:id="#+id/llTray"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:weightSum="3"
android:visibility="gone"
android:gravity="center_vertical"
android:layout_centerVertical="true"
android:background="#color/divider"
android:layout_alignParentBottom="true">
<RelativeLayout
android:layout_width="wrap_content"
android:layout_weight="1"
android:layout_gravity="left"
android:gravity="left"
android:layout_height="wrap_content">
<ImageButton
android:id="#+id/btnTray"
android:src="#drawable/ic_action_tray_menu"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</RelativeLayout>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="20sp"
android:textStyle="bold"
android:layout_gravity="center_horizontal|center_vertical"
android:gravity="center_horizontal|center_vertical"
android:layout_weight="1"
android:text="#string/view_tray" />
<RelativeLayout
android:layout_width="wrap_content"
android:layout_weight="1"
android:gravity="right"
android:layout_marginRight="10dp"
android:layout_height="wrap_content">
<TextView
android:id="#+id/tvTotalPrice"
android:layout_width="wrap_content"
android:textSize="20sp"
android:textStyle="bold"
android:text="#string/Rs"
android:layout_height="wrap_content" />
</RelativeLayout>
</LinearLayout>
The footer is in xml content.
If i remove:
app:layout_behavior="#string/appbar_scrolling_view_behavior"
in the main Xml View Pager, footer appears , else it's not shown.
How can i get the footer visible?

You already have:
<GridView
android:id="#+id/gridView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:numColumns="1"
android:stretchMode="columnWidth" />
With match_parent for both height and width which it doesn't seems to be good.
Also, Perhaps you will need to show that ViewPager with NestedScrollView for scrolling the content in future.(needs a trick, but you can achieve this).
So, my suggest is, you should be able to show that footer all the time in the below of that ViewPager by adding it like this:
<android.support.v4.view.ViewPager
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
android:layout_above="#+id/llTray" />
<!-- Footer aligned to bottom -->
<RelativeLayout
android:id="#+id/footer"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:background="#FC0"
android:gravity="center"
app:layout_anchor="#id/main_content"
app:layout_anchorGravity="bottom">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:text="Fixed Footer"
android:textColor="#000"
android:textSize="20sp" />
</RelativeLayout>
</android.support.design.widget.CoordinatorLayout>
This should show the footer all the time (even when ViewPager is collapsing).
Or if you want to show it in your ViewPager:
you should add this in your contents:
app:layout_behavior="#string/appbar_scrolling_view_behavior"
Which means, it will put the contents below the AppbarLayout
Anyways, your contents problem is coming from that GridView like i said, it will match all the content and you don't have ScrollView or even NestedScrollView to show the other contents.