How to add cardview in layout xml in AndroidX

Question

How to add cardview in layout xml in AndroidX

After upgraded to AndroidX

<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_margin="5dp">

gives a error

The following classes could not be found: - android.support.v7.widget.CardView (Fix Build Path, Edit XML, Create Class)

dependencies {

    implementation 'androidx.appcompat:appcompat:1.0.0'
    
    implementation 'androidx.cardview:cardview:1.0.0'

but I don't know how to use CardView in xml under AndroidX

Thank you

Answer 1

The class has changed to:

androidx.cardview.widget.CardView 

If you want to use the old class names, you need to add android:enableJetifier=true to your gradle.properties and use the appcompat dependencies instead.

Answer 2

I think the Best Approach should be like, understanding the problem statement first.

Scenario:

• Search for the library which Google Inc has changed for "AndroidX" and include in project

Solution :

Go to Artifact Mappings page of Android Developer Site and Search for your desired library.



Now go to AndroidX Releases page and check for the current version number



now go to build.gradle[module.app] add the library you want. (ie. CardView in my case) and press
Sync Now and necessary files will be added to your project by gradle.

See the image below:



Now in xml file you should get CardView or something you have just imported.

NB: pictures included here are (the first two) taken from Android Developer's Page which belongs to Google Inc and could be different depending on the time you see. See this post's posting time.

Answer 3

For AndroidX, Add in gradle dependencies

implementation 'androidx.cardview:cardview:1.0.0'

Then in xml-layout use

<androidx.cardview.widget.CardView