Start a New Activity using Intent in Android using Jetpack Compose
Last Updated :
01 Apr, 2022
In Android OS, an Intent is a mechanism used to navigate a user to another activity or application to achieve a specific task. In general, Intents are used to progress to the next activity or come back to the previous activity.
In this article, we will show you how you could start a New Activity using Intent 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: Create a New Activity SecondActivity.kt
Create a new activity by right-clicking on the project folder, click on new, click on Activity, and select the Gallery option. In the Gallery option, select Empty Compose Activity and name it SecondActivity as shown in the below images.
Step 3: Working with SecondActivity.kt file
Open the SecondActivity.kt file and refer to the following code. Below is the code for the SecondActivity.kt file. Comments are added inside the code to understand the code in more detail.
Kotlin
package com.geeksforgeeks.jcintentnextactivity
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.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.tooling.preview.Preview
import androidx.compose.ui.unit.sp
class SecondActivity : ComponentActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super .onCreate(savedInstanceState)
setContent {
MainContent2()
}
}
}
@Composable
fun MainContent2() {
Scaffold(
topBar = { TopAppBar(title = { Text( "GFG | Second Activity" , color = Color.White) }, backgroundColor = Color( 0xff0f9d58 )) },
content = { MyContent2() }
)
}
@Composable
fun MyContent2(){
Column(Modifier.fillMaxSize(), horizontalAlignment = Alignment.CenterHorizontally, verticalArrangement = Arrangement.Center) {
Text( "Hello Geek!" , fontSize = 50 .sp)
}
}
@Preview (showBackground = true )
@Composable
fun DefaultPreview2() {
MainContent2()
}
|
Step 4: 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.
Kotlin
package com.geeksforgeeks.jcintentnextactivity
import android.content.Intent
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.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.platform.LocalContext
import androidx.compose.ui.tooling.preview.Preview
class MainActivity : ComponentActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super .onCreate(savedInstanceState)
setContent {
MainContent()
}
}
}
@Composable
fun MainContent() {
Scaffold(
topBar = { TopAppBar(title = { Text( "GFG | Main Activity" , color = Color.White) }, backgroundColor = Color( 0xff0f9d58 )) },
content = { MyContent() }
)
}
@Composable
fun MyContent(){
val mContext = LocalContext.current
Column(Modifier.fillMaxSize(), horizontalAlignment = Alignment.CenterHorizontally, verticalArrangement = Arrangement.Center) {
Button(onClick = {
mContext.startActivity(Intent(mContext, SecondActivity:: class .java))
},
colors = ButtonDefaults.buttonColors(backgroundColor = Color( 0XFF0F9D58 )),
) {
Text( "Go to Second Activity" , color = Color.White)
}
}
}
@Preview (showBackground = true )
@Composable
fun DefaultPreview() {
MainContent()
}
|
Output:
When you run the application, you will see a button with the text ‘Go to Second Activity. When you click it, the application will take you to SecondActivity which displays the text ‘Hello Geek!’. Below is the recording of the application.
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