Book Image

Android Studio 4.0 Development Essentials - Java Edition

By : Neil Smyth
Book Image

Android Studio 4.0 Development Essentials - Java Edition

By: Neil Smyth

Overview of this book

Android rolls out frequent updates to meet the demands of the dynamic mobile market and to enable its developer community to lead advancements in application development. This book focuses on the updated features of Android Studio (the fully integrated development environment launched by Google) to build reliable Android applications using Java. The book starts by outlining the steps necessary to set up an Android development and testing environment. You’ll then learn how to create user interfaces with the help of Android Studio Layout Editor, XML files, and by writing the code in Java. The book introduces you to Android architecture components and advanced topics such as intents, touchscreen handling, gesture recognition, multi-window support integration, and biometric authentication, and lets you explore key features of Android Studio 4.0, including the layout editor, direct reply notifications, and dynamic delivery. You’ll also cover Android Jetpack in detail and create a sample app project using the ViewModel component. Finally, you’ll upload your app to the Google Play Console and handle the build process with Gradle. By the end of this book, you’ll have gained the skills necessary to develop applications using Android Studio 4.0 and Java.
Table of Contents (88 chapters)
88
Index

78.7 Loading the Web Page into the WebView

Before the web page can be printed, it needs to be loaded into the WebView instance. For the purposes of this tutorial, this will be performed by a call to the loadUrl() method of the WebView instance, which will be placed in a method named configureWebView() and called from within the onStart() method of the MainActivity class. Edit the MainActivity.java file, therefore, and modify it as follows:

package com.ebookfrenzy.webprint;

 

import android.os.Bundle;

.

.

import android.webkit.WebView;

import android.webkit.WebViewClient;

import android.webkit.WebResourceRequest;

 

public class MainActivity extends AppCompatActivity {

 

    private WebView myWebView;

.

.

   @Override

    protected void onStart() {

        super.onStart();

        configureWebView...