Develop Reference

Positioning views in Coordinator Layout

I am trying to create a screen with coordinator layout that includes:
Toolbar
Fragment, which will be replaced for every page using navigation API
Bottom App bar
However, I am struggling with positioning views in a way so the app's bottom bar doesn't overlap what in the fragment.
Any chance you could help me out with this, please? From what I can tell, the only way is to add a margin at the bottom but this may not be consistent across devices.
To illustrate, this list has a total of 25 items but the last two are overlapped by the app's bottom bar.
activity main
<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.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"
tools:context=".MainActivity">
<com.google.android.material.appbar.AppBarLayout
android:id="#+id/app_bar_layout"
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:theme="#style/AppTheme.AppBarOverlay"
android:animateLayoutChanges="true"
android:layout_above="#id/include">
<androidx.appcompat.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="#style/AppTheme.PopupOverlay"/>
<com.google.android.material.tabs.TabLayout
android:id="#+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<com.google.android.material.tabs.TabItem
android:text="Test 1"
android:layout_height="match_parent"
android:layout_width="match_parent"/>
<com.google.android.material.tabs.TabItem
android:text="Test 2"
android:layout_height="match_parent"
android:layout_width="match_parent"/>
</com.google.android.material.tabs.TabLayout>
</com.google.android.material.appbar.AppBarLayout>
<include
layout="#layout/content_main"
android:id="#+id/include"/>
<com.google.android.material.bottomappbar.BottomAppBar
android:id="#+id/bar"
android:layout_gravity="bottom"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="#+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_anchorGravity="right|top"
app:layout_anchor="#+id/bar"
android:src="#drawable/ic_add_black_24dp"/>
</androidx.coordinatorlayout.widget.CoordinatorLayout>
content main xml
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout
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"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:showIn="#layout/activity_main"
tools:context=".MainActivity">
<fragment
android:layout_width="411dp"
android:layout_height="627dp"
android:name="com.example.fitnessfatality.startScreen.StartFragment"
android:id="#+id/fragment"
/>
</FrameLayout>

Use these 3 properties to position each other
android:layout_gravity=""
app:layout_anchorGravity=""
app:layout_anchor="#id/xxxx"
Also here is an complete xml that can help you
<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.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"
tools:context=".home.HomeFragment">
<com.google.android.material.appbar.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#android:color/transparent"
android:fitsSystemWindows="true"
android:id="#+id/app_barlayout"
android:theme="#style/AppTheme.AppBarOverlay">
<com.google.android.material.appbar.CollapsingToolbarLayout
android:id="#+id/collaps_toolabar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
app:layout_scrollFlags="scroll|exitUntilCollapsed|snap"
app:expandedTitleTextAppearance="#style/CollapsingToolbarLayoutExpandedTextStyle">
<LinearLayout
android:id="#+id/layout_currentMatch_item"
android:layout_width="match_parent"
android:layout_height="160dp"
android:orientation="vertical">
</LinearLayout>
</com.google.android.material.appbar.CollapsingToolbarLayout>
</com.google.android.material.appbar.AppBarLayout>
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/recycler_2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
app:layout_anchorGravity="bottom"
app:layout_anchor="#id/app_barlayout"
android:orientation="horizontal" />
</androidx.coordinatorlayout.widget.CoordinatorLayout>

You can use LinearLayout inside CoordinatorLayout to arrange your views if it fits your needs or ConstraintLayout
I hope that the basis of the decision is clear. Take a look at this 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"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<android.support.design.widget.AppBarLayout
android:layout_height="wrap_content"
android:layout_width="match_parent"
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:popupTheme="#style/AppTheme.PopupOverlay"/>
</android.support.design.widget.AppBarLayout>
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<include
layout="#layout/content_main"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"/>
<LinearLayout
android:id="#+id/bar"
android:orientation="vertical"
android:layout_weight="0"
android:background="#color/colorAccent"
android:layout_width="match_parent"
android:layout_height="100dp"/>
</LinearLayout>
<android.support.design.widget.FloatingActionButton
android:id="#+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|end"
android:layout_margin="#dimen/fab_margin"
app:srcCompat="#android:drawable/ic_dialog_email"/>
</android.support.design.widget.CoordinatorLayout>

How to hide toolbar when scrolling on Fragment

I have a main activity:
<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.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">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<com.google.android.material.appbar.AppBarLayout
android:id="#+id/appBar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
android:fitsSystemWindows="true"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar">
<include layout="#layout/toolbar" />
</com.google.android.material.appbar.AppBarLayout>
<FrameLayout
android:id="#+id/frameInicio"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="#+id/adView"
android:layout_alignParentStart="true"
android:layout_marginTop="?android:attr/actionBarSize"
android:orientation="horizontal" />
<com.google.android.gms.ads.AdView xmlns:ads="http://schemas.android.com/apk/res-auto"
android:id="#+id/adView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_above="#+id/navigation"
android:layout_centerInParent="true"
android:layout_gravity="center"
android:gravity="center"
android:visibility="visible"
ads:adSize="SMART_BANNER"
ads:adUnitId="example" />
<com.ittianyu.bottomnavigationviewex.BottomNavigationViewEx
android:id="#+id/navigation"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:background="?android:attr/windowBackground"
app:menu="#menu/bottom_navigation" />
</RelativeLayout>
</androidx.coordinatorlayout.widget.CoordinatorLayout>
In FrameLayout "frameInicio" I load a fragment with this:
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<androidx.swiperefreshlayout.widget.SwipeRefreshLayout
android:id="#+id/swipeApuestas"
android:layout_width="match_parent"
android:layout_height="match_parent">
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/recyclerApuestas"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</androidx.swiperefreshlayout.widget.SwipeRefreshLayout>
</RelativeLayout>
I want when scroll in RecyclerView in Fragment, Toolbar of main_activity_layout, hides. How can I do?
I tried with recycler in the same activity, but i don't wanna do this, I want with diferent fragment, because I have a bottom navigation to control diferent fragment.
Thank you so much.

I have just faced your problem but the only difference is I'm scrolling within listview. Anyway I think that solution can be applied on your recyclerview too.
first this is how your fragment.xml should look like
<androidx.coordinatorlayout.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">
<com.google.android.material.appbar.AppBarLayout
android:id="#+id/app_bar_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar">
<androidx.appcompat.widget.Toolbar
android:id="#+id/tool_bar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_scrollFlags="enterAlways|scroll|snap">
</androidx.appcompat.widget.Toolbar>
</com.google.android.material.appbar.AppBarLayout>
<androidx.core.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
<androidx.swiperefreshlayout.widget.SwipeRefreshLayout
android:id="#+id/swipeApuestas"
android:layout_width="match_parent"
android:layout_height="match_parent">
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/recyclerApuestas"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</androidx.swiperefreshlayout.widget.SwipeRefreshLayout> </androidx.core.widget.NestedScrollView>
</androidx.coordinatorlayout.widget.CoordinatorLayout>
don't forget to initialize the toolbar within the fragment

Try this:
<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.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:gravity="center"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".DashboardActivity">
<androidx.appcompat.widget.Toolbar
android:id="#+id/toolbar_main"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:layout_scrollFlags="scroll|enterAlways"
app:popupTheme="#style/AppTheme.PopupOverlay"
/>
<FrameLayout android:id="#+id/content"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"/>
<com.google.android.material.bottomnavigation.BottomNavigationView
android:layout_gravity="bottom"
android:id="#+id/navigation"
app:labelVisibilityMode="labeled"
android:background="?android:attr/windowBackground"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:menu="#menu/menu_nav"/>
</androidx.coordinatorlayout.widget.CoordinatorLayout>
For your Main Activity (not fragment)

Hiding tablayout inside coordinator layout, which is outside activity

I have some problem with coordinator layout. I have activity toolbar inside appBarLayout with parent CoordinatorLayout (I want to make toolbar hideable) and fragment with tablayout inside appBarLayout and viewPager. Here is activity's XML
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/gradient"
android:fitsSystemWindows="true">
<android.support.design.widget.AppBarLayout
android:id="#+id/toolbar_container"
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|snap"
app:popupTheme="#style/AppTheme.PopupOverlay"/>
</android.support.design.widget.AppBarLayout>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/content"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</android.support.design.widget.CoordinatorLayout>
And it's fragment's XML
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/gradient"
android:fitsSystemWindows="true">
<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/toolbar_container"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/AppTheme.AppBarOverlay">
<android.support.design.widget.TabLayout
android:id="#+id/tabs"
style="#style/MyCustomTabLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:tabGravity="fill"/>
</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>
For now, I have this situation where the toolbar is somewhere.
If I change coordinator layout inside activity to linear layout I get toolbar visible, but as you can imagine with no hiding option.
Actually, I have play with coordinator layout a lot:hiding and showing toolbar in a few cases such parallax and others - https://github.com/Iamtodor/toolbars, so you can be sure, I have a little understand how it works :)
Also, I had wantch this sources:
- https://github.com/codepath/android_guides/wiki/Handling-Scrolls-with-CoordinatorLayout
- https://github.com/codepath/android_guides/wiki/Using-the-App-ToolBar#using-toolbar-as-actionbar
- https://github.com/chrisbanes/cheesesquare
But there is all examples when tablayout exists inside same appbarlayout with toolbar.
How can I fix it?

Here is what worked for me:
Fragment XML:
<android.support.design.widget.AppBarLayout
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/app_bar_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:elevation="0dp">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_scrollFlags="scroll|enterAlways|snap" >
<include layout="#layout/include_time_line"
android:layout_height="wrap_content"
android:layout_width="match_parent" />
</android.support.v7.widget.Toolbar>
<android.support.design.widget.TabLayout
style="#style/TabLayout"
android:id="#+id/tabLayout"
android:layout_width="match_parent"
android:layout_height="54dp"
android:layout_gravity="bottom"
android:background="#color/egg"
android:elevation="0dp"
app:tabGravity="fill"
app:tabMode="scrollable"
app:tabIndicatorColor="#fcd131"
app:tabPadding="0dp"
app:tabIndicatorHeight="4dp"/>
</android.support.design.widget.AppBarLayout>
<com.woot.woot.productbrowse.ui.ConfigurablePagingViewPager
android:id="#+id/viewPager"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
/>
<FrameLayout
android:id="#+id/selectByWeightKeyboard"
android:layout_width="match_parent"
android:layout_height="#dimen/weight_keyboard_container_height"
android:background="#color/keyboard"
android:clipToPadding="false"
android:elevation="16dp"
android:clickable="true"
app:layout_behavior="android.support.design.widget.BottomSheetBehavior">
<include layout="#layout/add_product_by_weight_keyboard" />
</FrameLayout>
Activity XML:
<FrameLayout
android:id="#+id/contentFrame"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<FrameLayout
android:id="#+id/layout_done_button"
android:visibility="gone"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:elevation="8dp"
tools:visibility="visible"
android:background="#color/ice">
<Button
android:id="#+id/button_done"
style="?android:attr/borderlessButtonStyle"
android:layout_width="match_parent"
android:layout_height="#dimen/button_height"
android:layout_marginRight="#dimen/button_done_horizontal_margin"
android:layout_marginLeft="#dimen/button_done_horizontal_margin"
android:layout_marginTop="#dimen/activity_horizontal_margin"
android:layout_marginBottom="#dimen/activity_horizontal_margin"
android:background="#drawable/rounded_green_button"
android:text="#string/done"
android:textSize="#dimen/button_text_size"
android:textAllCaps="true"
android:textColor="#color/egg" />
</FrameLayout>
<android.support.design.widget.NavigationView
android:id="#+id/navigation"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:contentDescription="#string/drawer_content_description"
app:menu="#menu/menu_navigation_product_browse" />

fragment from viewPager hidding behind on tab of action bar

Actually i am trying to build a listView/recyclerView . On scrolling of list the actionbar get hide where action bar is toolbar but the some part of listview is hiding behind the tab. Here i have used AppBarLayout and toolbar having app:layout_scrollFlags="scroll|enterAlways" and in my recylerview have app:layout_behavior="#string/appbar_scrolling_view_behavior" behaviour. I can use linear Layout but problem is for sliding of toolbar the AppBarLayout must be the child of CoordinatorLayout.
My activity having xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="ameyo.genie.activity.HomeActivity">
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingTop="50dp">
<android.support.v4.view.ViewPager
android:id="#+id/pager"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</FrameLayout>
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
android:background="?attr/colorPrimary"
android:minHeight="?attr/actionBarSize"
app:popupTheme="#style/Theme.AppCompat.Light.DarkActionBar"
app:theme="#style/Toolbar">
<android.support.v7.widget.Toolbar
android:id="#+id/action_bars"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_scrollFlags="scroll|enterAlways"
/>
<ameyo.genie.SlidingTabLayout
android:id="#+id/sliding_tabs"
android:layout_width="match_parent"
android:layout_height="48dp"
android:background="#color/colorPrimary"
/>
</android.support.design.widget.AppBarLayout>
<android.support.design.widget.FloatingActionButton
android:id="#+id/home_fab_dial"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="16dp"
android:clickable="true"
android:src="#drawable/ic_dialpad_white"
app:layout_anchor="#id/pager"
app:layout_anchorGravity="bottom|center" />
</android.support.design.widget.CoordinatorLayout>
and my fragment having
<?xml version="1.0" encoding="utf-8"?>
<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"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/white">
<android.support.v7.widget.RecyclerView
android:id="#+id/recentcall_recyclerview"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scrollbars="vertical"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
/>
</android.support.design.widget.CoordinatorLayout>
Am I doing something wrong in making the toolbar to slide on sliding the listview or there is another way of doing this without using any third library.

try this:
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
android:background="?attr/colorPrimary"
android:minHeight="?attr/actionBarSize"
app:popupTheme="#style/Theme.AppCompat.Light.DarkActionBar"
app:theme="#style/Toolbar">
<android.support.v7.widget.Toolbar
android:id="#+id/action_bars"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_scrollFlags="scroll|enterAlways"
/>
<ameyo.genie.SlidingTabLayout
android:id="#+id/sliding_tabs"
android:layout_width="match_parent"
android:layout_height="48dp"
android:background="#color/colorPrimary"
/>
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingTop="50dp">
<android.support.v4.view.ViewPager
android:id="#+id/pager"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</FrameLayout>
</android.support.design.widget.AppBarLayout>
When you put your component, order them by the position, every component will be over the precedent, if there's no space !

Thanks to Daniel Nugent that I forgot to write android:layout_below="#+id/sliding_tabs" inside viewpager and also remove framelayout and height must be wrapcontent now my final code is this which is working
<?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"
tools:context="ameyo.genie.activity.HomeActivity">
<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/action_bars"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:background="?attr/colorPrimary"
android:minHeight="?attr/actionBarSize"
app:popupTheme="#style/Theme.AppCompat.Light.DarkActionBar"
app:theme="#style/Toolbar"
app:elevation="0dp"
app:layout_scrollFlags="scroll|enterAlways"
/>
<ameyo.genie.SlidingTabLayout
android:id="#+id/sliding_tabs"
android:layout_below="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="48dp"
android:background="?attr/colorPrimary"
app:elevation="0dp"
android:minHeight="?attr/actionBarSize"
/>
</android.support.design.widget.AppBarLayout>
<android.support.v4.view.ViewPager
android:id="#+id/pager"
android:layout_below="#+id/sliding_tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
/>
<android.support.design.widget.FloatingActionButton
android:id="#+id/home_fab_dial"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="16dp"
android:clickable="true"
android:src="#drawable/ic_dialpad_white"
app:layout_anchor="#id/pager"
app:layout_anchorGravity="bottom|center" />
</android.support.design.widget.CoordinatorLayout>

ActionBar covering my activity

I have an activity whose xml is:
<?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="ivykoko.com.likechecker.MainActivity">
<android.support.v7.widget.RecyclerView
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/reciclador"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="3dp"
android:scrollbars="vertical" />
<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:popupTheme="#style/AppTheme.PopupOverlay" />
</android.support.design.widget.AppBarLayout>
<include layout="#layout/content_main" />
</android.support.design.widget.CoordinatorLayout>
And it looks like this:
As you can see, the action bar is covering the top of the recyclerview. What can I do?
Thanks in advance.

Add app:layout_behavior="#string/appbar_scrolling_view_behavior" to your RecyclerView. This will cause the CoordinatorLayout to position it below the AppBarLayout.

Put Appbar as direct first child of coordinator layout and use app:layout_behavior="#string/appbar_scrolling_view_behavior" in RecyclerView.

<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<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:popupTheme="#style/AppTheme.PopupOverlay" />
</android.support.design.widget.AppBarLayout>
<android.support.v7.widget.RecyclerView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/reciclador"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="3dp"
android:scrollbars="vertical" />
<include layout="#layout/content_main" />
</LinearLayout>