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Android WebView in Kotlin

  • Difficulty Level : Medium
  • Last Updated : 07 May, 2021

WebView is a view that is used to display web pages inside the app. It is used to turn the app into a web application. In this article let’s display the inside the Android Application using Kotlin.

Note: To implement Android WebView in Java please refer How to use WebView in Android using Java.

Class Hierarchy



Step 1: Create a new project


To create a new project in android studio please refer, how to Create/Start a New Project in Android Studio.


Step 2: Modify activity_main.xml


This is used to set the front end of the Application, we place the WebView in the front end.



    <!-- Place Web-view on the Screen -->

Step 3: Modify MainActivity.kt

This is the back end of the Application, here we assign values to the views and actions to the views.


package com.example.webview_kotlin
import android.os.Bundle
import android.webkit.WebViewClient
class MainActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        // WebViewClient allows you to handle
        // onPageFinished and override Url loading.
        webView.webViewClient = WebViewClient()
        // this will load the url of the website
        // this will enable the javascript settings
        webView.settings.javaScriptEnabled = true
        // if you want to enable zoom feature
    // if you press Back button this code will work
    override fun onBackPressed() {
        // if your webview can go back it will go back
        if (webView.canGoBack())
        // if your webview cannot go back
        // it will exit the application

Step 4: Modify AndroidManifest.xml

In AndroidManifest.xml, one needs to include the below permission, in order to access the internet.


<?xml version="1.0" encoding="utf-8"?>
    <!-- Give permission for app to access the Internet -->
    <uses-permission android:name="android.permission.INTERNET"/>
       <activity android:name=".MainActivity">
               <action android:name="android.intent.action.MAIN" />
               <category android:name="android.intent.category.LAUNCHER" />

Output: Run on Emulator

When we run the application either on the Emulator or on the Android Smartphone we can see this as our output. Remember to turn on the internet on your device. 


output screen


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