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How to pass an image from one activity to another activity in Kotlin?
This example demonstrates how to pass an image from one activity to another activity in Android using Kotlin.
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.xml.
<?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" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:padding="8dp" tools:context=".MainActivity"> <Button android:id="@+id/btnSend" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="20dp" android:onClick="sendImage" android:text="Send Image" /> <ImageView android:id="@+id/imageView" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_below="@id/btnSend" android:layout_marginTop="10dp" android:src="@drawable/image" /> </RelativeLayout>
Step 3 − Add the following code to src/MainActivity.kt
import android.content.Intent
import android.os.Bundle
import android.view.View
import androidx.appcompat.app.AppCompatActivity
class MainActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
title = "KotlinApp"
}
fun sendImage(view: View) {
val intent = Intent(this@MainActivity, SecondActivity::class.java)
intent.putExtra("resId", R.drawable.image)
startActivity(intent)
}
}Step 4 − Create a new Activity (SecondActivity) and add the following code
Activity_second.xml −
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:padding="8dp" tools:context=".SecondActivity"> <TextView android:id="@+id/textView" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerHorizontal="true" android:layout_marginTop="40dp" android:text="Second Activity" android:textSize="24sp" android:textStyle="bold" /> <ImageView android:id="@+id/imageView2" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_below="@id/textView" android:layout_marginTop="5dp" /> </RelativeLayout>
SecondActivity.kt
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.widget.ImageView
class SecondActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_second)
val imageView: ImageView = findViewById(R.id.imageView2)
val bundle: Bundle = intent.extras
val resId: Int = bundle.getInt("resId")
imageView.setImageResource(resId)
}
}Step 5 − Add the following code to androidManifest.xml
<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="app.com.kotlipapp"> <application android:allowBackup="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:roundIcon="@mipmap/ic_launcher_round" android:supportsRtl="true" android:theme="@style/AppTheme"> <activity android:name=".MainActivity"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> </manifest>
Let's try to run your application. I assume you have connected your actual Android Mobile device with your computer. To run the app from android studio, open one of your project's activity files and click the Run 
icon from the toolbar. Select your mobile device as an option and then check your mobile device which will display your default screen −
Click here to download the project code.
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