In Jetpack Compose, a Card is an equivalent or a substitute for CardView in Android. A Card is a container that can be used as a parent view for declaring multiple UI elements inside it. It has an elevation property that applies a shadow effect around it.
In this article, we will show you how you could implement a simple Card in Android using Jetpack Compose. Follow the below steps once the IDE is ready.
Step by Step Implementation
Step 1: Create a New Project in Android Studio
To create a new project in Android Studio please refer to How to Create/Start a New Project in Android Studio. While choosing the template, select Empty Compose Activity. If you do not find this template, try upgrading the Android Studio to the latest version. We demonstrated the application in Kotlin, so make sure you select Kotlin as the primary language while creating a New Project.
Step 2: Working with the MainActivity.kt file
Go to the MainActivity.kt file and refer to the following code. Below is the code for the MainActivity.kt file. Comments are added inside the code to understand the code in more detail.
package com.geeksforgeeks.jccardimplementation
import android.os.Bundle
import androidx.activity.ComponentActivity
import androidx.activity.compose.setContent
import androidx.compose.foundation.layout.Arrangement
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.foundation.layout.padding
import androidx.compose.material.*
import androidx.compose.runtime.Composable
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.text.font.FontWeight
import androidx.compose.ui.tooling.preview.Preview
import androidx.compose.ui.unit.dp
import com.geeksforgeeks.jccardimplementation.ui.theme.JCCardImplementationTheme
class MainActivity : ComponentActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super .onCreate(savedInstanceState)
setContent {
// Calling the composable function
// to display element and its contents
MainContent()
}
}
} // Creating a composable function to display Top Bar @Composable fun MainContent(){ Scaffold(
topBar = {TopAppBar(
title = {Text(
"GFG | Card Implementation" ,
color = Color.White)},
backgroundColor = Color( 0xff0f9d58 )
) },
content = { MyContent()}
)
} // Creating a composable function to create a simple card // Calling this function as content in the above function @Composable fun MyContent(){ Column(Modifier.fillMaxSize(), verticalArrangement = Arrangement.Center, horizontalAlignment = Alignment.CenterHorizontally) {
Card{
Column(Modifier.padding( 10 .dp)) {
Text( "GeeksforGeeks" , fontWeight = FontWeight.W700)
Text( "+91 1800 2584458" )
Text( "Noida, India" , color = Color.Gray)
}
}
}
} // For displaying preview in the // Android Studio IDE emulator @Preview (showBackground = true )
@Composable fun DefaultPreview() { MainContent()
} |
Output:
When you run the application you will see a card as shown below.