Develop Reference

Top Action bar is blocking Cardview

I am having an issue where the Cardview is bring 'blocked' by the top Action Bar as seen in the image
How can I fix the issue where I do would not have to put a 'padding-top' value in order to resolve.
Here is my files for you review:
activity_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">
<include
layout="#layout/app_bar_main"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<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:headerLayout="#layout/nav_header_main"
app:menu="#menu/activity_main_drawer" />
</android.support.v4.widget.DrawerLayout>
dashboard.xml
<?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"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:context=".Dashboard" >
<android.support.v7.widget.RecyclerView
android:id="#+id/recyclerView"
android:layout_width="match_parent"
android:layout_height="match_parent" >
</android.support.v7.widget.RecyclerView>
</RelativeLayout>
app_bar_main.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=".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:popupTheme="#style/AppTheme.PopupOverlay" />
</android.support.design.widget.AppBarLayout>
<FrameLayout
android:id="#+id/fragment_content"
android:layout_width="match_parent"
android:layout_height="match_parent" >
</FrameLayout>
<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>
BTW: As you can see I am using fragments.

Check your recyclerview layout
give some margin from top
use this
<android.support.v7.widget.RecyclerView
android:layout_width="match_parent"
android:id="#+id/recycler_view"
android:layout_marginTop="?attr/actionBarSize"
android:layout_height="match_parent">
</android.support.v7.widget.RecyclerView>

Handle both NavigationView and page content

My NavigationView is displayed behind the page content. So I tried to use bringToFronton my NavigationView : the page content goes behind the NavigationView, BUT becomes unclickable/unscrollable (page content is a recyclerView with multiple items).
How can I handle both NavigationView and page content ?
Even when the NavigationView is closed, the RecyclerView is unclickable/unscrollable
Here is my layout file :
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:background="#color/background_color">
<include android:id="#+id/mytoolbar"
layout="#layout/toolbar"/>
<android.support.v4.widget.DrawerLayout
android:id="#+id/drawer_layout"
android:layout_height="match_parent"
android:layout_width="match_parent"
android:layout_below="#+id/mytoolbar"
>
<android.support.design.widget.NavigationView
android:id="#+id/nav_view"
android:layout_height="match_parent"
android:layout_width="wrap_content"
android:layout_gravity="start"
android:fitsSystemWindows="true"
app:menu="#menu/drawer_menu_planvente"/>
</android.support.v4.widget.DrawerLayout>
<RelativeLayout
android:id="#+id/layoutPlanVente"
android:layout_below="#+id/mytoolbar"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.RecyclerView
android:id="#+id/recyclerViewProduitsVente"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scrollbars="vertical"
android:scrollbarSize="50dp"
android:orientation="vertical">
</android.support.v7.widget.RecyclerView>
</RelativeLayout>
</RelativeLayout>

Update your layout as below:
<?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"
android:id="#+id/drawer_layout"
android:layout_height="match_parent"
android:layout_width="match_parent">
<!-- Content -->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<include android:id="#+id/mytoolbar"
layout="#layout/toolbar"/>
<RelativeLayout
android:id="#+id/layoutPlanVente"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.RecyclerView
android:id="#+id/recyclerViewProduitsVente"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scrollbars="vertical"
android:scrollbarSize="50dp" />
</RelativeLayout>
</LinearLayout>
<!-- Navigation -->
<android.support.design.widget.NavigationView
android:id="#+id/nav_view"
android:layout_height="match_parent"
android:layout_width="wrap_content"
android:layout_gravity="start"
android:fitsSystemWindows="true"
app:menu="#menu/drawer_menu_planvente" />
</android.support.v4.widget.DrawerLayout>

Inspired by FAT answer i made it work with this layout :
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:background="#color/background_color">
<include android:id="#+id/mytoolbar"
layout="#layout/toolbar"/>
<android.support.v4.widget.DrawerLayout
android:id="#+id/drawer_layout"
android:layout_height="match_parent"
android:layout_width="match_parent"
android:layout_below="#+id/mytoolbar"
>
<RelativeLayout
android:id="#+id/layoutPlanVente"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.RecyclerView
android:id="#+id/recyclerViewProduitsVente"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scrollbars="vertical"
android:scrollbarThumbVertical="#drawable/scrollbar_custom"
android:orientation="vertical">
</android.support.v7.widget.RecyclerView>
</RelativeLayout>
<android.support.design.widget.NavigationView
android:id="#+id/nav_view"
android:layout_height="match_parent"
android:layout_width="wrap_content"
android:layout_gravity="start"
android:fitsSystemWindows="true"
app:menu="#menu/drawer_menu_planvente"/>
</android.support.v4.widget.DrawerLayout>
</RelativeLayout>

AppBar wrong height

My AppBar is doing weird things.
This is what it looks like on a 720x1280 screen:
It is how it's supposed to look like. And this is how it looks like on a 1080x1920 screen:
I was playing around with the toolbar height in the app_bar_main.xml, but I didn't like it, so I set it back to the default ?attr/actionBarSize value. What could be the problem? Here is my app_bar_main.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"
android:fitsSystemWindows="true"
tools:context="com.koostamas.justtry.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:popupTheme="#style/AppTheme.PopupOverlay" />
</android.support.design.widget.AppBarLayout>
</android.support.design.widget.CoordinatorLayout>
And here is my activity_main.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<include
android:id="#+id/app_bar"
layout="#layout/app_bar_main"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/drawerLayout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<FrameLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/containerView">
</FrameLayout>
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="#+id/drawerPane"
android:layout_gravity="start">
<!-- List of Actions (pages) -->
<ListView
android:id="#+id/navList"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:choiceMode="singleChoice"
android:background="#color/busblue"/>
</RelativeLayout>
</android.support.v4.widget.DrawerLayout>
</LinearLayout>

try update your code. As of me this issue is with your views.Your approach is not correct to add this. If you are including the Toolbar only then whats the need of coordinateLayout and AppBarLayout!
update app_bar_main.xml ocde with this
<?xml version="1.0" encoding="utf-8"?>
<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" />
update your activity_main.xml code with this
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/drawerLayout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<include
android:id="#+id/app_bar"
layout="#layout/app_bar_main" />
<FrameLayout
android:id="#+id/containerView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"></FrameLayout>
<RelativeLayout
android:id="#+id/drawerPane"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start">
<!-- List of Actions (pages) -->
<ListView
android:id="#+id/navList"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:background="#color/busblue"
android:choiceMode="singleChoice" />
</RelativeLayout>
</android.support.v4.widget.DrawerLayout>

Android DrawerLayout height

He's using the NavigationView with the support library android.support.design.widget. It works very well but I can not adjust the height and the margins, then it remains empty space between the toolbar and the first line. To understand the problem see the image. This is my XML. Thanks for your help.
<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="match_parent"
android:fitsSystemWindows="true"
android:orientation="vertical">
<include
android:id="#+id/toolbar_actionbar"
layout="#layout/toolbar_default"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
<android.support.v4.widget.DrawerLayout
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:id="#+id/drawer"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context=".MainActivity">
<FrameLayout
android:id="#+id/frame"
android:layout_width="match_parent"
android:layout_height="match_parent">
</FrameLayout>
<android.support.design.widget.NavigationView
android:id="#+id/navigation_view"
android:layout_height="match_parent"
android:layout_width="wrap_content"
android:layout_gravity="start"
app:menu="#menu/main"/>
<!-- app:headerLayout="#layout/header" -->
</android.support.v4.widget.DrawerLayout>
toolbar_default
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.Toolbar
style="#style/ToolBarStyle"
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
android:minHeight="#dimen/abc_action_bar_default_height_material"
/>

Try adding this to your dimens.xml,
<dimen name="design_navigation_separator_vertical_padding">0dp</dimen>

Navigation Drawer covers my toolbar

I am using this example of material design navigation drawer,the issue is,when i open my drawer,it covers my action bar too..and my drawer icon is not visible..this is the what i am getting..and following is my code..
<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">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<LinearLayout
android:id="#+id/container_toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<include
android:id="#+id/toolbar"
layout="#layout/toolbar" />
</LinearLayout>
<FrameLayout
android:id="#+id/container_body"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="1" />
</LinearLayout>
<fragment
android:id="#+id/fragment_navigation_drawer"
android:name="info.androidhive.materialdesign.activity.FragmentDrawer"
android:layout_width="#dimen/nav_drawer_width"
android:layout_height="match_parent"
android:layout_gravity="start"
app:layout="#layout/fragment_navigation_drawer"
tools:layout="#layout/fragment_navigation_drawer" />
</android.support.v4.widget.DrawerLayout>

I would suggest to use a linear layout with vertical orientation as parent and then the first child is your toolbar and the second your drawer layout.
linearlayout vertical
toolbar
drawerlayout
Hope this helps.

Whatever you have in android.support.v4.widget.DrawerLayout will be covered by Navigation drawer. See that you have your toolbar in android.support.v4.widget.DrawerLayout, so it is below navigation drawer. All you have to do is keep it out of android.support.v4.widget.DrawerLayout. These are all views, so design your layout in such a way that your toolbar is above android.support.v4.widget.DrawerLayout and its subviews.
However I should state that after Android 5.0 Lollipop, according to material guidelines, the navigation drawer is supposed to go over toolbar. But it is in no way necessary for you to do.
Here is an example layout
(However, understanding the theory part is necessary as you can create any type of layout after that)
<RelativeLayout 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.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="56dp"
android:layout_gravity="start"
android:background="#android:color/transparent"
android:minHeight="?attr/actionBarSize"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light"
app:theme="#style/toolBarStyle"
app:titleTextAppearance="#style/Toolbar.TitleText" />
<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:layout_below="#+id/toolbar"
android:fitsSystemWindows="true">
<RelativeLayout
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="0dp"
android:background="#android:color/transparent" />
<fragment
android:id="#+id/navigation_drawer"
class="com.buzzintown.consumer.drawer.NavigationDrawerFragment"
android:layout_width="310dp"
android:layout_height="match_parent"
android:layout_gravity="start"
tools:layout="#layout/drawer_layout" />
</android.support.v4.widget.DrawerLayout>
</RelativeLayout>

This is example of latest navigation view.
<?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:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
android:orientation="vertical">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
tools:openDrawer="start">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="#dimen/abc_action_bar_default_height_material"
android:background="?attr/colorPrimary"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"/>
</android.support.design.widget.AppBarLayout>
<android.support.v4.widget.DrawerLayout
android:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<!--content_main is my layout you can design your own-->
<include layout="#layout/content_main" />
<FrameLayout
android:id="#+id/content"
layout="#layout/content_main"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<!-- The navigation drawer with menu items defined in activity_main_drawer -->
<android.support.design.widget.NavigationView
android:id="#+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
app:menu="#menu/activity_main_drawer" />
</android.support.v4.widget.DrawerLayout>
</LinearLayout>

You can use Listview instead of fragment it will make navigation drawer below Actionbar.
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
style="#style/MyToolBarStyle.Base"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
android:minHeight="?attr/actionBarSize" />
</LinearLayout>
<android.support.v4.widget.DrawerLayout
android:id="#+id/drawerLayout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<!-- activity view -->
<!-- Framelayout to display Fragments -->
<FrameLayout
android:id="#+id/frame_container"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<!-- navigation drawer -->
<ListView
android:id="#+id/list_slidermenu"
android:layout_width="#dimen/slider_dimen"
android:layout_height="match_parent"
android:layout_gravity="start"
android:background="#android:color/white"
android:divider="#000"
android:dividerHeight="1dp" />
</android.support.v4.widget.DrawerLayout>
</LinearLayout>

Modifying your code for the result you expect:
<RelativeLayout 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">
<include
android:id="#+id/toolbar"
layout="#layout/toolbar" />
<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:layout_below="#+id/toolbar">
<FrameLayout
android:id="#+id/container_body"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="1" />
<fragment
android:id="#+id/fragment_navigation_drawer"
android:name="info.androidhive.materialdesign.activity.FragmentDrawer"
android:layout_width="#dimen/nav_drawer_width"
android:layout_height="match_parent"
android:layout_gravity="start"
app:layout="#layout/fragment_navigation_drawer"
tools:layout="#layout/fragment_navigation_drawer" />
</android.support.v4.widget.DrawerLayout>
</RelativeLayout>
Your Welcome...