title: Post a tweet with Android API
body: <p>I've been searching for a way to post a tweet with my Android application, but all the things I've found don't work.</p>
  
  <p>I have to admit that Twitter's API isn't so simple to understand, but my code isn't really long, and I don't see where is my mistake.</p>
  
  <p>This is my code:</p>
  
  <pre><code>public class PartagerTwitter extends Activity {
  
      private CommonsHttpOAuthConsumer httpOauthConsumer;
      private OAuthProvider httpOauthprovider;
      public final static String consumerKey = XXX;
      public final static String consumerSecret = XXX;
      private final String CALLBACKURL = "myapp://twitactivity";
      private Twitter twitter;
  
      @Override
  
      public void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          try {
              httpOauthConsumer = new CommonsHttpOAuthConsumer(consumerKey, consumerSecret);
              httpOauthprovider = new DefaultOAuthProvider("https://twitter.com/oauth/request_token",
                      "https://twitter.com/oauth/access_token",
              "https://twitter.com/oauth/authorize");
              String authUrl = httpOauthprovider.retrieveRequestToken(httpOauthConsumer, CALLBACKURL);
  
              this.startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(authUrl)));
          } catch (Exception e) {
              e.printStackTrace();
          }
      }
  
      @Override
      protected void onNewIntent(Intent intent) {
  
          super.onNewIntent(intent);  
          Uri uri = intent.getData();
          Log.i("test", uri.toString());  
          if (uri != null &amp;&amp; uri.toString().startsWith(CALLBACKURL)) {
              String verifier = uri.getQueryParameter(oauth.signpost.OAuth.OAUTH_VERIFIER);
              try {
                  httpOauthprovider.retrieveAccessToken(httpOauthConsumer, verifier);     
                  twitter = new TwitterFactory().getInstance();
                  twitter.setOAuthConsumer(consumerKey, consumerSecret);
  
                  RequestToken requestToken = twitter.getOAuthRequestToken(CALLBACKURL); 
                  AccessToken accessToken = twitter.getOAuthAccessToken(requestToken);
                  String token = accessToken.getToken(), 
                  secret = accessToken.getTokenSecret();
  
                  accessToken = new AccessToken(token,secret);
                  Twitter twitter = new TwitterFactory().getOAuthAuthorizedInstance(consumerKey,consumerSecret,accessToken);
                  twitter.updateStatus("My First Status Update");
              } catch (Exception e) {
                  e.printStackTrace();
  
              }
          }
      }
  }
  </code></pre>
  
  <p>Of course, my keys aren't XXX.
  And another question, is it possible, after login, to close the Twitter window and bring my activity to the foreground?</p>