title: How to send a tweet with jTwitter on Android?
body: <p>Has anyone ever successfully sent a tweet via jTwitter on Android?</p>
  
  <p>I am stuck with the Authentification. I can successfully redirect the user to twitter, authorize my app and redirect to my app with <code>new OAuthSignpostClient(CONSUMER_KEY, CONSUMER_SECRET, CALLBACK_URL)</code>. Then I store the <code>oauth_token</code> and <code>oauth_verifier</code> which are given with the Callback URL and try to use the OAuthSignpostClient again to update a state:</p>
  
  <pre><code>OAuthSignpostClient client = new OAuthSignpostClient(TwitterOAuthActivity.CONSUMER_KEY, TwitterOAuthActivity.CONSUMER_SECRET, accessToken, accessTokenSecret);
  
  // Ready to go!
  Twitter twitter = new Twitter(null, client);
  CharSequence date = DateFormat.format("dd.MM.yyyy @ hh:mm:ss", new Date());
  twitter.updateStatus("Yay. It works! " + date);
  </code></pre>
  
  <p>Which ends in a <code>TwitterException</code> without a caused by:</p>
  
  <pre><code>05-11 12:24:32.643: E/AndroidRuntime(25897): winterwell.jtwitter.TwitterException$E401: Could not authenticate with OAuth.
  05-11 12:24:32.643: E/AndroidRuntime(25897): http://api.twitter.com/1/statuses/update.json (anonymous)
  05-11 12:24:32.643: E/AndroidRuntime(25897):    at winterwell.jtwitter.URLConnectionHttpClient.processError(URLConnectionHttpClient.java:425) 
  05-11 12:24:32.643: E/AndroidRuntime(25897):    at winterwell.jtwitter.OAuthSignpostClient.post2_connect(OAuthSignpostClient.java:345)
  </code></pre>
  
  <p>Does anyone has an idea where my Problem is?</p>