Android Application Development Cookbook: 93 Recipes for Building Winning Apps

WebView webView = (WebView) findViewById(R.id.WebView01);
webView.setWebViewClient(new Callback());
WebSettings webSettings = webView.getSettings();
webSettings.setBuiltInZoomControls(true);
webView.loadUrl("http://www.android.com/images/whatsnew/jb-new-logo.png");
}
private class Callback extends WebViewClient {
@Override
public boolean shouldOverrideUrlLoading(WebView view, 
String url) {
return (false);
}
}
}
To display the built-in zoom controls, you need to first get the 
WebSettings
property from the 
WebView
and then call its 
setBuiltInZoomControls()
method. 
www.it-ebooks.info

---

 
Recipe 2.7 displaying Web pages
❘
59
note
Although most Android devices support multi-touch screens, the built-in 
zoom controls are useful for zooming your web content when testing your appli-
cation on the Android emulator. 
Sometimes when you load a page that redirects you (such as loading 
www.wrox.com
 redirects you to 
www.wrox.com/wileyCDA
), the 
WebView
will cause your application to launch the device’s browser 
application to load the desired page. For example, if you ask the 
WebView
to load 
www.wrox.com
, Wrox 
.com will automatically redirect you to 
www.wrox.com/WileyCDA
/. In this case, your application will 
automatically launch the device’s browser application to load your page. To prevent this from happen-
ing, you need to implement the 
WebViewClient
class and override the 
shouldOverrideUrlLoading()
method, as shown in the preceding example.
Finally, to use the 
WebView
in your application, you need to remember to add the 
INTERNET
permis-
sion to your 
AndroidManifest.xml
file: