Best option for using the GData APIs on Android?

Question

What\'s the least painful and most size efficient way to use the Google Data APIs in an Android application?

After a few quick searches t seems that there is an andr

Answer 1

Here's some steps to getting the Google Docs api working with an Android Eclipse project.

_{Spoiler: it breaks (for me) on the SAX exception}

1

Get the GData Java library (via the language guide)

2

Get the 3 jars from the Android Javamail port

3

Add the following jars in your lib folder, add them to the path using the context menu (Build path->Add)

• activation.jar (javamail)
• additionnal.jar (javamail)
• mail.jar (javamail)
• gdata-client-1.0.jar
• gdata-client-meta-1.0.jar
• gdata-core-1.0.jar
• gdata-docs-3.0.jar
• gdata-docs-meta-3.0.jar
• gdata-gtt-2.0.jar
• gdata-gtt-meta-2.0.jar
• gdata-media-1.0.jar
• google-collect-1.0-rc1.jar (from the deps folder of the gdata folder)
• jsr305.jar3. (from the deps folder of the gdata folder)

4

Don't forget to add the INTERNET permission in your AndroidManifest.xml:

5

Try out some example code:

DocsService client = new DocsService("myappname");
try
{
    client.setUserCredentials("username", "password");

    URL feedUri = new URL("https://docs.google.com/feeds/default/private/full/");
    DocumentListFeed feed = client.getFeed(feedUri, DocumentListFeed.class);

    TextView textView = (TextView) findViewById(R.id.textview);

    String text = ""; 
    for (DocumentListEntry entry : feed.getEntries())
    {
        text += entry.getTitle().getPlainText() + "\r\n";
    }

    textView.setText(text);
}
catch (AuthenticationException e)
{
    // TODO Auto-generated catch block
    e.printStackTrace();
}
catch (MalformedURLException e)
{
    // TODO Auto-generated catch block
    e.printStackTrace();
}
catch (IOException e)
{
    // TODO Auto-generated catch block
    e.printStackTrace();
}
catch (ServiceException e)
{
    // TODO Auto-generated catch block
    e.printStackTrace();
}

6

Accept defeat after 2 hours, with a SaxException from logcat:

WARN/XmlParser(1599): javax.xml.parsers.ParserConfigurationException:
org.xml.sax.SAXNotRecognizedException: http://xml.org/sax/features/external-parameter-entities
...
at com.google.gdata.wireformats.input.AtomDataParser.parse(AtomDataParser.java:68)

This last step causes a ServiceException.