In this example, I have created a custom background XML(drop shadow) and applied it inside the FrameLayout. And this will give a drop shadow effect on the toolbar. Note: Don't forget to hide your view if the device you are running is >= to Lollipop. if not you'll end up with two shadows.
By default, android provides shadow for action bar. This example demonstrates How to remove shadow below the action bar. Step 1 - Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project. Step 2 - Add the following code to res/layout/activity_main.
In Android applications, Toolbar is a kind of ViewGroup that can be placed in the XML layouts of an activity. It was introduced by the Google Android team during the release of Android Lollipop(API 21). The Toolbar is basically the advanced successor of the ActionBar.
AppBarLayout is a vertical LinearLayout which implements many of the features of material designs app bar concept, namely scrolling gestures. Children should provide their desired scrolling behavior through AppBarLayout.
I ended up setting my own drop shadow for the toolbar, thought it might helpful for anyone looking for it:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="top"
android:orientation="vertical">
<android.support.v7.widget.Toolbar android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/color_alizarin"
android:titleTextAppearance="@color/White"
app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"/>
<FrameLayout android:layout_width="match_parent"
android:layout_height="match_parent">
<!-- **** Place Your Content Here **** -->
<View android:layout_width="match_parent"
android:layout_height="5dp"
android:background="@drawable/toolbar_dropshadow"/>
</FrameLayout>
</LinearLayout>
@drawable/toolbar_dropshadow:
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<gradient android:startColor="@android:color/transparent"
android:endColor="#88333333"
android:angle="90"/>
</shape>
@color/color_alizarin
<color name="color_alizarin">#e74c3c</color>
Google released the Design Support library a few weeks ago and there is a nifty solution for this problem in this library.
Add the Design Support library as a dependency in build.gradle
:
compile 'com.android.support:design:22.2.0'
Add AppBarLayout
supplied by the library as a wrapper around your Toolbar
layout to generate a drop shadow.
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.v7.widget.Toolbar
.../>
</android.support.design.widget.AppBarLayout>
Here is the result :
There are lots of other tricks with the design support library.
As above but with dependency:
implementation 'com.google.android.material:material:1.0.0'
and com.google.android.material.appbar.AppBarLayout
You can't use the elevation attribute before API 21 (Android Lollipop). You can however add the shadow programmatically, for example using a custom view placed below the Toolbar.
@layout/toolbar
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/blue"
android:minHeight="?attr/actionBarSize"
app:theme="@style/ThemeOverlay.AppCompat.ActionBar" />
<View
android:id="@+id/toolbar_shadow"
android:layout_width="match_parent"
android:layout_height="3dp"
android:background="@drawable/toolbar_dropshadow" />
@drawable/toolbar_dropshadow
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle">
<gradient
android:startColor="@android:color/transparent"
android:endColor="#88333333"
android:angle="90"/> </shape>
in your activity layout
<include layout="@layout/toolbar" />
Use /values folders to apply the correct shadow style based on OS version.
For under 5.0 devices, use /values/styles.xml to add windowContentOverlay to the body of your activity:
<style name="MyViewArea">
<item name="android:foreground">?android:windowContentOverlay</item>
</style>
<style name="MyToolbar">
<item name="android:background">?attr/colorPrimary</item>
</style>
Then add your own custom shadow by changing your Theme to include:
<item name="android:windowContentOverlay">@drawable/bottom_shadow</item>
You can grab Google's IO app shadow resource here: https://github.com/google/iosched/blob/master/android/src/main/res/drawable-xxhdpi/bottom_shadow.9.png
For 5.0 devices & later, use /values-v21/styles.xml to add elevation to your toolbar using a custom header style:
<style name="MyViewArea">
</style>
<style name="MyToolbar">
<item name="android:background">?attr/colorPrimary</item>
<item name="android:elevation">4dp</item>
</style>
Note that in the second case, I had to create an empty MyViewArea style so the windowContentOverlay wouldn't show up too.
[Update: changed resource names and added Google shadow.]
This worked for me very well:
<android.support.v7.widget.CardView
xmlns:card_view="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/primary"
card_view:cardElevation="4dp"
card_view:cardCornerRadius="0dp">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/primary"
android:minHeight="?attr/actionBarSize" />
</android.support.v7.widget.CardView>
If you are seting the ToolBar
as ActionBar
then just call:
getSupportActionBar().setElevation(YOUR_ELEVATION);
Note: This must be called after setSupportActionBar(toolbar);
i added
<android.support.v7.widget.Toolbar
...
android:translationZ="5dp"/>
in toolbar description and it works for me. Using 5.0+
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With