A.java

package com.example.twitter;



import oauth.signpost.OAuthConsumer;
import oauth.signpost.OAuthProvider;
import oauth.signpost.basic.DefaultOAuthProvider;
import oauth.signpost.commonshttp.CommonsHttpOAuthConsumer;
import oauth.signpost.exception.OAuthCommunicationException;
import oauth.signpost.exception.OAuthExpectationFailedException;
import oauth.signpost.exception.OAuthMessageSignerException;
import oauth.signpost.exception.OAuthNotAuthorizedException;
import twitter4j.Twitter;
import twitter4j.TwitterException;
import twitter4j.TwitterFactory;
import twitter4j.http.AccessToken;
import twitter4j.http.RequestToken;
import winterwell.jtwitter.OAuthSignpostClient;
import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

public class WriteTweet extends Activity{
	public final static String consumerKey = "YFRFQ8tn8CMtRT29ChYfZg";
	public final static String consumerSecret = "CbWjCGRZEibG0UYmPdIMB89cSiSZ6BTMp0Ys9vZmM";
	private final String CALLBACKURL = "x-oauthflow-twitter://callback_main";
	Twitter twitter;
	RequestToken requestToken;
//	private OAuthSignpostClient oauthClient;
	private OAuthConsumer mConsumer;
	private OAuthProvider mProvider;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		// TODO Auto-generated method stub
		super.onCreate(savedInstanceState);
		loginUser();
	}

	private void loginUser() {
		// TODO Auto-generated method stub
		try {
			twitter = new TwitterFactory().getInstance();
			twitter.setOAuthConsumer(consumerKey, consumerSecret);
			requestToken = twitter.getOAuthRequestToken(CALLBACKURL);
//			String authUrl = requestToken.getAuthorizationURL();
			String token = requestToken.getToken();
			String tokenSecret = requestToken.getTokenSecret();
			mConsumer = new CommonsHttpOAuthConsumer(consumerKey, consumerSecret);
			mProvider = new DefaultOAuthProvider(
					"https://api.twitter.com/oauth/request_token",
					"https://api.twitter.com/oauth/access_token",
					"https://api.twitter.com/oauth/authorize");

			String authUrl = mProvider.retrieveRequestToken(mConsumer,CALLBACKURL);
			Log.e("authUrl",authUrl);
			Log.e("token",token);
			Log.e("tokensecret",tokenSecret);
			this.startActivity(new Intent(Intent.ACTION_VIEW, Uri
					.parse(authUrl)));
		} catch (TwitterException ex) {
			Toast.makeText(this, ex.getMessage(), Toast.LENGTH_LONG).show();
			Log.e("in Main.OAuthLogin", ex.getMessage());
		} catch (OAuthMessageSignerException e) {
			// TODO Auto-generated catch block
			Log.e("new exception","wtf");
			e.printStackTrace();
		} catch (OAuthNotAuthorizedException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (OAuthExpectationFailedException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (OAuthCommunicationException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
	@Override
	protected void onNewIntent(Intent intent) {
		Log.e("hi","hi");
		super.onNewIntent(intent);
		Uri uri = intent.getData();
		try {
			String verifier = uri.getQueryParameter("oauth_verifier");
			AccessToken accessToken = twitter.getOAuthAccessToken(requestToken,
					verifier);
			String token = accessToken.getToken(), secret = accessToken
					.getTokenSecret();
			displayTimeLine(token, secret); //after everything, display the first tweet 

		} catch (TwitterException ex) {
			Log.e("Main.onNewIntent", "" + ex.getMessage());
		}

	}
	@SuppressWarnings("deprecation")
	void displayTimeLine(String token, String secret) {
		Log.e("display","timeline");
	}

}