Send Multiple Data From One Activity to Another in Android using Kotlin
There are multiple ways for sending multiple data from one Activity to Another in Android, but in this article, we will do this using Bundle. Bundle in android is used to pass data from one activity to another, it takes data in key and value pairs. To understand this concept we will create a simple project in android studio using Kotlin.
Step by Step Implementation
Step 1: Create a New Project
To create a new project in Android Studio please refer to Create a new project in android studio in kotlin.
Step 2: Working with the activity_main.xml file
Navigate to the app > res > layout > activity_main.xml and add the below code to that file. Below is the code for the activity_main.xml file.
XML
<? xml version = "1.0" encoding = "utf-8" ?> < androidx.constraintlayout.widget.ConstraintLayout 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" tools:context = ".MainActivity" > < ImageView android:layout_width = "100dp" android:layout_height = "100dp" android:src = "@drawable/ic_icons8_w3wiki" app:layout_constraintBottom_toTopOf = "@+id/textView" app:layout_constraintEnd_toEndOf = "parent" app:layout_constraintStart_toStartOf = "parent" app:layout_constraintTop_toTopOf = "parent" /> < TextView android:id = "@+id/textView" android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:text = "w3wiki" android:textColor = "#2FA634" android:textSize = "23sp" app:layout_constraintBottom_toBottomOf = "parent" app:layout_constraintHorizontal_bias = "0.498" app:layout_constraintLeft_toLeftOf = "parent" app:layout_constraintRight_toRightOf = "parent" app:layout_constraintTop_toTopOf = "parent" app:layout_constraintVertical_bias = "0.247" /> < EditText android:id = "@+id/etId" android:layout_width = "match_parent" android:layout_height = "wrap_content" android:hint = "Enter name" android:layout_margin = "10dp" app:layout_constraintBottom_toBottomOf = "parent" app:layout_constraintTop_toBottomOf = "@+id/textView" app:layout_constraintVertical_bias = "0.238" tools:layout_editor_absoluteX = "0dp" /> < EditText android:id = "@+id/etName" android:layout_width = "match_parent" android:layout_height = "wrap_content" android:layout_margin = "10dp" android:hint = "Enter age" app:layout_constraintBottom_toBottomOf = "parent" app:layout_constraintTop_toBottomOf = "@+id/etId" app:layout_constraintVertical_bias = "0.037" tools:layout_editor_absoluteX = "10dp" /> < EditText android:id = "@+id/etRoll" android:layout_width = "match_parent" android:layout_height = "wrap_content" android:layout_margin = "10dp" android:hint = "Enter gender" app:layout_constraintBottom_toBottomOf = "parent" app:layout_constraintTop_toBottomOf = "@+id/etName" app:layout_constraintVertical_bias = "0.047" tools:layout_editor_absoluteX = "10dp" /> < Button android:id = "@+id/btnSend" android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:text = "send data" app:layout_constraintBottom_toBottomOf = "parent" app:layout_constraintEnd_toEndOf = "parent" app:layout_constraintStart_toStartOf = "parent" app:layout_constraintTop_toBottomOf = "@+id/etRoll" /> </ androidx.constraintlayout.widget.ConstraintLayout > |
Note: We have also included vector images in the drawable folder, if want to use ImageView you also need to add a vector image.
Step 3: 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.ayush.serialize_deserialize import android.content.Intent import androidx.appcompat.app.AppCompatActivity import android.os.Bundle import android.widget.Button import android.widget.EditText class MainActivity : AppCompatActivity() { lateinit var etId: EditText lateinit var etName: EditText lateinit var etRoll: EditText lateinit var btnSend: Button override fun onCreate(savedInstanceState: Bundle?) { super .onCreate(savedInstanceState) setContentView(R.layout.activity_main) etId = findViewById(R.id.etId) etName = findViewById(R.id.etName) etRoll = findViewById(R.id.etRoll) btnSend = findViewById(R.id.btnSend) btnSend.setOnClickListener { val bundle = Bundle() bundle.putString( "id" , etId.text.toString()) bundle.putString( "name" , etName.text.toString()) bundle.putString( "roll" , etRoll.text.toString()) val intent = Intent( this , SecondActivity:: class .java) intent.putExtras(bundle) startActivity(intent) } } } |
Step 4: Working with the activity_second.xml file
Navigate to the app > res > layout > activity_second.xml and add the below code to that file. Below is the code for the activity_main.xml file.
XML
<? xml version = "1.0" encoding = "utf-8" ?> < LinearLayout 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:gravity = "center" android:orientation = "vertical" android:layout_height = "match_parent" tools:context = ".SecondActivity" > < TextView android:id = "@+id/tvId" android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:text = "ID" android:textStyle = "bold" android:textColor = "#7CB342" android:textSize = "22sp" /> < TextView android:id = "@+id/tvName" android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:text = "NAME" android:textStyle = "bold" android:textColor = "#7CB342" android:layout_margin = "4dp" android:textSize = "22sp" /> < TextView android:id = "@+id/tvRoll" android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:text = "ROLL" android:textStyle = "bold" android:textColor = "#7CB342" android:textSize = "22sp" /> </ LinearLayout > |
Step 5: Working with the SecondActivity.kt file
Go to the SecondActivity.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.ayush.serialize_deserialize import androidx.appcompat.app.AppCompatActivity import android.os.Bundle import android.widget.TextView class SecondActivity : AppCompatActivity() { lateinit var tvId : TextView lateinit var tvName : TextView lateinit var tvRoll : TextView override fun onCreate(savedInstanceState: Bundle?) { super .onCreate(savedInstanceState) setContentView(R.layout.activity_second) tvId = findViewById(R.id.tvId) tvName = findViewById(R.id.tvName) tvRoll= findViewById(R.id.tvRoll) val bundle = intent.extras if (bundle != null ){ tvId.text = "id = ${bundle.getString(" id ")}" tvName.text = "Name = ${bundle.getString(" name ")}" tvRoll.text = "RollNo = ${bundle.getString(" roll ")}" } } } |
So our app is ready.
Output:
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