WebView. The WebView class is an
extension of Android's View class that allows
you to display web pages as a part of your activity layout. It does not
include any features of a fully developed web browser, such as navigation
controls or an address bar. All that WebView does, by default, is show a web
page.A common scenario in which using
WebView is helpful is when you want to
provide information in your app that you might need to update, such as an
end-user agreement or a user guide. Within your Android app, you can create an
Activity that contains a WebView, then
use that to display your document that's hosted online.Another scenario in which
WebView can help is if your app provides data to the
user that always requires an Internet connection to retrieve data, such as
email. In this case, you might find that it's easier to build a WebView in
your Android app that shows a web page with all the user data, rather than
performing a network request, then parsing the data and rendering it in an
Android layout. Instead, you can design a web page that's tailored for Android
devices and then implement a WebView in your Android app that loads the web
page.This document shows you how to get started with
WebView and how to do some
additional things, such as handle page navigation and bind JavaScript from your
web page to client-side code in your Android app.Adding a WebView to your app
To add aWebView to your app, you can either include the <WebView>
element in your activity layout, or set the entire Activity window as a
WebView in
onCreate().Adding a WebView in the activity layout
To add aWebViewto your app in the layout, add the following code to your
activity's layout XML file:<WebView android:id="@+id/webview" android:layout_width="match_parent" android:layout_height="match_parent" />
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