Android: I cannot remove elevation / shadow on my toolbar

Question

Hi i would like to remove the elevation and shadow effect from my toolbar for API 21 and greater. Below is what i have tried

setSupportActionBar(mToolbar);
        getSupportActionBar().setDisplayShowTitleEnabled(false);
        getSupportActionBar().setElevation(0);

My Toolbar in XML. I have tried to set elevation to 0dp

<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="wrap_content"
    android:background="@color/colorPrimary"
    android:minHeight="?attr/actionBarSize"
    android:elevation="0dp"
    android:theme="@style/ToolbarStyle"
    app:theme="@style/ToolbarStyle"
    >

And this is ToolbarStyle if it helps

<style name="ToolbarStyle" parent="ThemeOverlay.AppCompat.Dark">
    <item name="colorControlNormal">@android:color/white</item>
</style>

Edit 1: Tried the following in styles v21. Still same result

<style name="ToolbarStyle" parent="ThemeOverlay.AppCompat.Dark">
    <item name="colorControlNormal">@android:color/white</item>
    <item name="android:elevation">0dp</item>
</style>

Edit 2: Where the toolbar is in my layout

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_width="match_parent"
        android:layout_height="match_parent">

        <android.support.design.widget.CoordinatorLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent">

            <android.support.design.widget.AppBarLayout
                android:id="@+id/appBarLayout"
                android:layout_width="match_parent"
                android:layout_height="wrap_content">

                <include layout="@layout/toolbar" />

Answer 1

You can do that with an easy step. Don't remove the android.support.design.widget.AppBarLayout from your layout, instead add the attribute app:elevation="0dp" to it. Your final layout will be:

<android.support.design.widget.AppBarLayout
            android:id="@+id/appBarLayout"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:elevation="0dp">
            ...
</android.support.design.widget.AppBarLayout>

Answer 2

This remove elevation on toolbar (android:stateListAnimator="@null"), stateListAnimator is for API level 21 or higher, so insert a tools prop (before namespace declaration) like this:

//xmlns:tools="http://schemas.android.com/tools" in parent or start element

     <android.support.design.widget.AppBarLayout
        android:id="@+id/appBar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:stateListAnimator="@null" 
        android:theme="@style/AppTheme.AppBarOverlay"
        tools:targetApi="21">

 <android.support.v7.widget.Toolbar
                android:id="@+id/toolbar"
                android:layout_width="match_parent"
                android:layout_height="?attr/actionBarSize"
                android:background="?attr/colorPrimary"
                app:elevation="0dp"
                app:popupTheme="@style/AppTheme.PopupOverlay" />

    </android.support.design.widget.AppBarLayout>

//your content goes here like RecyclerView, Card or other layout 

Here is my sample result:

Answer 3

Use setOutlineProvider(null); on your appBar. Just be sure to check the SDK version. :)

Answer 4

Use app:elevation="0dp" in your AppBarLayout. Make sure you put Toolbar inside your AppBarLayout like this -

    <android.support.design.widget.AppBarLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        android:id="@+id/appbar"
        android:layout_width="match_parent"
        android:layout_height="?attr/actionBarSize"
        android:theme="@style/AppTheme.AppBarOverlay"
        android:fitsSystemWindows="true"
        app:elevation="0dp"> 

        <android.support.v7.widget.Toolbar
            xmlns:app="http://schemas.android.com/apk/res-auto"
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:background="@color/firstOption"
            app:popupTheme="@style/ThemeOverlay.AppCompat.Light" />

    </android.support.design.widget.AppBarLayout>

and add this line to your activity - findViewById(R.id.appBarLayout).bringToFront();
This will bring the AppBar to front.

Answer 5

Just remove this part of you layout hierarchy:

<android.support.design.widget.AppBarLayout
                android:id="@+id/appBarLayout"
                android:layout_width="match_parent"
                android:layout_height="wrap_content">

It's responsible for creating shadow. Toolbar itself doesn't cast any shadow.

Answer 6

Go to the activity you want to remove the ActionBar's Elevation. Before setContent(....), request the ActionBar feature(That is if you have not declared it directly)

    getWindow().requestFeature(Window.FEATURE_ACTION_BAR);
    getSupportActionBar().setElevation(0);

or else just call the declared Toolbar variable eg toolbar.setElevation(0);

Answer 7

Get the appbarlayout in code:

var appbarLayout = findviewbyid<AppBarLayout>(resource.id.  );  

set the property

appbarLayout.StateListAnimator=null;

Answer 8

Create another style for v21 and add

<item name="android:elevation">@dimen/toolbar_elevation</item> to that style. On normal style don't use elevation and don't use it in xml, just use style="@style/yourCustomToolbarStyle"

Answer 9

Solution is simple. Just add following line into your AppBar layout. No need to add elevation for the Toolbar or AppBar layout after this.

android:stateListAnimator="@null"

Answer 10

use android:outlineSpotShadowColor=" assign transparent colour" your shadow will disappear its work for my as below

enter image description here

Answer 11

要使用 java 代码删除高程，请使用以下行...

getSupportActionBar().setElevation(0);