CardView not showing shadow elevation

Question

I am working with cardviews but the problem is my CardView is not showing any elevation or shadow. I have already tried some of the methods suggested in stackoverflow answer

Answer 1

Add this line in CardView widget

app:cardElevation="5dp"

hope this will help!

Answer 2

     <android.support.v7.widget.CardView
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    app:cardElevation="10dp"
    app:cardCornerRadius="4dp"
    app:cardBackgroundColor="#ffff8800">
     ......
     </android.support.v7.widget.CardView>

Remove the background color first, add the elevation and later add the background again. Worked for me, though I had added the background through the layout designer.

Answer 3

If your manifest file has a android:hardwareAccelerated="false" line, delete it.

Answer 4

Try adding android:outlineProvider="bounds" to the CardView layout.

Answer 5

You forget two things.

• First of all, check your project's AndroidManifest.xml file, in the Application tag you have to write

<application android:hardwareAccelerated="true" ...>

instead of

<application android:hardwareAccelerated="false" ...>

1. Then check the parent tag of your layout file is there written like below line.

2. if you wanna use app: xmlns. then write : xmlns:app="http://schemas.android.com/apk/res-auto"

   OR xmlns:card_view="http://schemas.android.com/apk/res-auto"

NOTE: You don't need to write both simultaneous. Because it gives you duplicate attribute error.

The above line is most important when you use the attributes of res-auto.

<?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"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical">

    <android.support.v7.widget.CardView
        android:id="@+id/card_view"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:cardBackgroundColor="@android:color/white"
        app:cardCornerRadius="4dp"
        app:cardElevation="4dp" />

</RelativeLayout>

Answer 6

remove below line from AndroidManifest.xml

android:hardwareAccelerated="false"