How to pass values from one activity to another activity in Kotlin

How to pass values from one activity to another activity in Kotlin

In previous article we have discussed on what is Intent and types of intent  check on this link if required  Intent and is type with example this will be continued article of previous 

activity_first.xml

In this activity_first.xml file we are creating an button which on click will send data from current activity to another specified activity

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout      

  xmlns:android="http://schemas.android.com/apk/res/android"       

 xmlns:tools="http://schemas.android.com/tools"      

  xmlns:app="http://schemas.android.com/apk/res-auto"   

     android:layout_width="match_parent"     

   android:layout_height="match_parent"      

  tools:context=".FirstActivity"

android:orientation="vertical">

<Button android:layout_width="match_parent"    

    android:layout_height="wrap_content"     

   android:id="@+id/button"     

   android:text="Data Passing Example"/>

</LinearLayout>

FirstActivity.kt

In this FirstActivity.kt file we are defining button click and the activity which as

to be connected on click of the button along with it we are passing sample data of Name,Language

and Channel data into the specified activity



package com.example.kotlinsampleproject

import android.content.Intent
import android.support.v7.app.AppCompatActivity
import android.os.Bundle
import kotlinx.android.synthetic.main.activity_first.*

class FirstActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_first)

        button.setOnClickListener {        
   intent = Intent(this, SecondActivity::class.java)
            intent.putExtra("Name","Sushmitha")
            intent.putExtra("Language","Kotlin")
            intent.putExtra("Channel", "SDK Book")
            startActivity(intent)
        }    }
}

SecondActivity.kt

In this SecondActivity.kt we are receving the data sent by FirstActivity.kt  using key name specified in the bundle

package com.example.kotlinsampleproject

import android.content.Intent
import android.net.Uri
import android.support.v7.app.AppCompatActivity
import android.os.Bundle
import android.widget.Toast

class SecondActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_second)

         val bundle:Bundle = intent.extras    

        var name =bundle.get("Name")
        var lang= bundle.get("Language")
        var channel= bundle.get("Channel")

        Toast.makeText(this,"$name $lang $channel",Toast.LENGTH_LONG).show();

    }
}

Happy Reading 😊
Thank You





Sushmitha N
Hi there ! Im a experienced android developer with 4years of revelant exprience.My Skills include Android,Core Java ,Oops and Kotlin.
Youtube Channel : SDK Book