Ya Bibek ,
I am getting following error :
11-10 10:48:46.348: ERROR/OAUTH(409): Communication with the service
provider failed: Received authentication challenge is null
I have added Twitter4J and signpost as library and I have registered as
client type on Twitter . And my code is following:
public class TwApp extends Activity
{
private static final String APP ="OAUTH";
private Twitter twitter;
TextView tweettx;
Button login;
private OAuthProvider provider;
private CommonsHttpOAuthConsumer consumer;
private static final String CONSUMER_KEY = " consumer key... ";
private static final String CONSUMER_SECRET = "consumerSecret key..";
String verifier ;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
tweettx = (TextView)findViewById(R.id.tweet);
login = (Button) findViewById(R.id.main_loin_button);
login.setOnClickListener(new OnClickListener()
{
public void onClick(View v)
{
askOAuth();
}
});
}
private void askOAuth()
{
try
{
consumer = new CommonsHttpOAuthConsumer(CONSUMER_KEY,
CONSUMER_SECRET );
provider = new DefaultOAuthProvider("
https://api.twitter.com/oauth/request_token";,
"
https://api.twitter.com/oauth/access_token";,
"
https://api.twitter.com/oauth/authorize";);
String authUrl = provider.retrieveRequestToken(consumer,
OAuth.OUT_OF_BAND);
System.out.println("&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&" +
authUrl);
Toast.makeText(this, "Please authorize this app!",
Toast.LENGTH_LONG).show();
this.startActivity(new Intent(Intent.ACTION_VIEW,
Uri.parse(authUrl)));
} catch (Exception e)
{
System.out.println("&&&&&&&&&&&&&&&&ERROR_____" + e);
Log.e(APP, e.getMessage());
Toast.makeText(this, e.getMessage(), Toast.LENGTH_LONG).show();
}
}
@Override
protected void onNewIntent(Intent intent)
{
super.onNewIntent(intent);
Uri uri = intent.getData();
if (uri != null && uri.toString().startsWith( OAuth.OUT_OF_BAND))
{
verifier =
uri.getQueryParameter(oauth.signpost.OAuth.OAUTH_VERIFIER);
}
try {
// this will populate token and token_secret in consumer
provider.retrieveAccessToken(consumer, verifier);
// TODO: you might want to store token and token_secret in
you app settings!!!!!!!!
AccessToken a = new AccessToken(consumer.getToken(),
consumer.getTokenSecret());
// initialize Twitter4J
twitter = new TwitterFactory().getInstance();
twitter.setOAuthConsumer(CONSUMER_KEY, CONSUMER_SECRET);
twitter.setOAuthAccessToken(a);
// create a tweet
Date d = new Date(System.currentTimeMillis());
String tweet = "#OAuth working! " + d.toLocaleString();
// send the tweet
twitter.updateStatus(tweet);
// feedback for the user...
tweettx.setText(tweet);
Toast.makeText(this, tweet, Toast.LENGTH_LONG).show();
login.setVisibility(Button.GONE);
} catch (Exception e) {
Log.e(APP, e.getMessage());
Toast.makeText(this, e.getMessage(),
Toast.LENGTH_LONG).show();
}
}
}
Can you reply fast as its very urgent.
Thanks
Babita
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