Android Twitter oAuth Connect Problem


#1

Well, i´m trying to use a simple application when i can login, tweet and logoff using the Twitter 4j and Ouath. But i´m having some problems. I think the problem is on the call back url. Someone can see the problem? Here is my conde, and the tutorial i´m using:
package com.androidhive.twitterconnect;

import twitter4j.Twitter;
import twitter4j.TwitterException;
import twitter4j.TwitterFactory;
import twitter4j.User;
import twitter4j.auth.AccessToken;
import twitter4j.auth.RequestToken;
import twitter4j.conf.Configuration;
import twitter4j.conf.ConfigurationBuilder;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.content.pm.ActivityInfo;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.text.Html;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends Activity {
// Constants
/**
* Register your here app https://dev.twitter.com/apps/new and get your
* consumer key and secret
* */
static String TWITTER_CONSUMER_KEY = “U82wthaarTatPNwsba28g”;
static String TWITTER_CONSUMER_SECRET = “9AEl4TholoyUM8i3J1SkL0Rcw7vGLC7sKqWWrZQwKO0”;

// Preference Constants
static String PREFERENCE_NAME = "twitter_oauth";
static final String PREF_KEY_OAUTH_TOKEN = "oauth_token";
static final String PREF_KEY_OAUTH_SECRET = "oauth_token_secret";
static final String PREF_KEY_TWITTER_LOGIN = "isTwitterLogedIn";

static final String TWITTER_CALLBACK_URL = "https://twitter.com/";

// Twitter oauth urls
static final String URL_TWITTER_AUTH = "auth_url";
static final String URL_TWITTER_OAUTH_VERIFIER = "oauth_verifier";
static final String URL_TWITTER_OAUTH_TOKEN = "oauth_token";

// Login button
Button btnLoginTwitter;
// Update status button
Button btnUpdateStatus;
// Logout button
Button btnLogoutTwitter;
// EditText for update
EditText txtUpdate;
// lbl update
TextView lblUpdate;
TextView lblUserName;

// Progress dialog
ProgressDialog pDialog;

// Twitter
private static Twitter twitter;
private static RequestToken requestToken;
 
// Shared Preferences
private static SharedPreferences mSharedPreferences;
 
// Internet Connection detector
private ConnectionDetector cd;
 
// Alert Dialog Manager
AlertDialogManager alert = new AlertDialogManager();

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
     
    cd = new ConnectionDetector(getApplicationContext());

    // Check if Internet present
    if (!cd.isConnectingToInternet()) {
        // Internet Connection is not present
        alert.showAlertDialog(MainActivity.this, "Internet Connection Error",
                "Please connect to working Internet connection", false);
        // stop executing code by return
        return;
    }
     
    // Check if twitter keys are set
    if(TWITTER_CONSUMER_KEY.trim().length() == 0 || TWITTER_CONSUMER_SECRET.trim().length() == 0){
        // Internet Connection is not present
        alert.showAlertDialog(MainActivity.this, "Twitter oAuth tokens", "Please set your twitter oauth tokens first!", false);
        // stop executing code by return
        return;
    }

    // All UI elements
    btnLoginTwitter = (Button) findViewById(R.id.btnLoginTwitter);
    btnUpdateStatus = (Button) findViewById(R.id.btnUpdateStatus);
    btnLogoutTwitter = (Button) findViewById(R.id.btnLogoutTwitter);
    txtUpdate = (EditText) findViewById(R.id.txtUpdateStatus);
    lblUpdate = (TextView) findViewById(R.id.lblUpdate);
    lblUserName = (TextView) findViewById(R.id.lblUserName);

    // Shared Preferences
    mSharedPreferences = getApplicationContext().getSharedPreferences(
            "MyPref", 0);

    /**
     * Twitter login button click event will call loginToTwitter() function
     * */
    btnLoginTwitter.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View arg0) {
            // Call login twitter function
            loginToTwitter();
        }
    });

    /**
     * Button click event to Update Status, will call updateTwitterStatus()
     * function
     * */
    btnUpdateStatus.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            // Call update status function
            // Get the status from EditText
            String status = txtUpdate.getText().toString();

            // Check for blank text
            if (status.trim().length() > 0) {
                // update status
                new updateTwitterStatus().execute(status);
            } else {
                // EditText is empty
                Toast.makeText(getApplicationContext(),
                        "Please enter status message", Toast.LENGTH_SHORT)
                        .show();
            }
        }
    });

    /**
     * Button click event for logout from twitter
     * */
    btnLogoutTwitter.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View arg0) {
            // Call logout twitter function
            logoutFromTwitter();
        }
    });

    /** This if conditions is tested once is
     * redirected from twitter page. Parse the uri to get oAuth
     * Verifier
     * */
    if (!isTwitterLoggedInAlready()) {
        Uri uri = getIntent().getData();
        if (uri != null && uri.toString().startsWith(TWITTER_CALLBACK_URL)) {
            // oAuth verifier
            String verifier = uri
                    .getQueryParameter(URL_TWITTER_OAUTH_VERIFIER);

            try {
                // Get the access token
                AccessToken accessToken = twitter.getOAuthAccessToken(
                        requestToken, verifier);

                // Shared Preferences
                Editor e = mSharedPreferences.edit();

                // After getting access token, access token secret
                // store them in application preferences
                e.putString(PREF_KEY_OAUTH_TOKEN, accessToken.getToken());
                e.putString(PREF_KEY_OAUTH_SECRET,
                        accessToken.getTokenSecret());
                // Store login status - true
                e.putBoolean(PREF_KEY_TWITTER_LOGIN, true);
                e.commit(); // save changes

                Log.e("Twitter OAuth Token", "> " + accessToken.getToken());

                // Hide login button
                btnLoginTwitter.setVisibility(View.GONE);

                // Show Update Twitter
                lblUpdate.setVisibility(View.VISIBLE);
                txtUpdate.setVisibility(View.VISIBLE);
                btnUpdateStatus.setVisibility(View.VISIBLE);
                btnLogoutTwitter.setVisibility(View.VISIBLE);
                 
                // Getting user details from twitter
                // For now i am getting his name only
                long userID = accessToken.getUserId();
                User user = twitter.showUser(userID);
                String username = user.getName();
                 
                // Displaying in xml ui
                lblUserName.setText(Html.fromHtml("<b>Welcome " + username + "</b>"));
            } catch (Exception e) {
                // Check log for login errors
                Log.e("Twitter Login Error", "> " + e.getMessage());
            }
        }
    }

}

/**
 * Function to login twitter
 * */
private void loginToTwitter() {
    // Check if already logged in
    if (!isTwitterLoggedInAlready()) {
        ConfigurationBuilder builder = new ConfigurationBuilder();
        builder.setOAuthConsumerKey(TWITTER_CONSUMER_KEY);
        builder.setOAuthConsumerSecret(TWITTER_CONSUMER_SECRET);
        Configuration configuration = builder.build();
         
        TwitterFactory factory = new TwitterFactory(configuration);
        twitter = factory.getInstance();

        try {
            requestToken = twitter
                    .getOAuthRequestToken(TWITTER_CALLBACK_URL);
            this.startActivity(new Intent(Intent.ACTION_VIEW, Uri
                    .parse(requestToken.getAuthenticationURL())));
        } catch (TwitterException e) {
            e.printStackTrace();
        }
    } else {
        // user already logged into twitter
        Toast.makeText(getApplicationContext(),
                "Already Logged into twitter", Toast.LENGTH_LONG).show();
    }
}

/**
 * Function to update status
 * */
class updateTwitterStatus extends AsyncTask<String, String, String> {

    /**
     * Before starting background thread Show Progress Dialog
     * */
    @Override
    protected void onPreExecute() {
        super.onPreExecute();
        pDialog = new ProgressDialog(MainActivity.this);
        pDialog.setMessage("Updating to twitter...");
        pDialog.setIndeterminate(false);
        pDialog.setCancelable(false);
        pDialog.show();
    }

    /**
     * getting Places JSON
     * */
    protected String doInBackground(String... args) {
        Log.d("Tweet Text", "> " + args[0]);
        String status = args[0];
        try {
            ConfigurationBuilder builder = new ConfigurationBuilder();
            builder.setOAuthConsumerKey(TWITTER_CONSUMER_KEY);
            builder.setOAuthConsumerSecret(TWITTER_CONSUMER_SECRET);
             
            // Access Token 
            String access_token = mSharedPreferences.getString(PREF_KEY_OAUTH_TOKEN, "");
            // Access Token Secret
            String access_token_secret = mSharedPreferences.getString(PREF_KEY_OAUTH_SECRET, "");
             
            AccessToken accessToken = new AccessToken(access_token, access_token_secret);
            Twitter twitter = new TwitterFactory(builder.build()).getInstance(accessToken);
             
            // Update status
            twitter4j.Status response = twitter.updateStatus(status);
             
            Log.d("Status", "> " + response.getText());
        } catch (TwitterException e) {
            // Error in updating status
            Log.d("Twitter Update Error", e.getMessage());
        }
        return null;
    }

    /**
     * After completing background task Dismiss the progress dialog and show
     * the data in UI Always use runOnUiThread(new Runnable()) to update UI
     * from background thread, otherwise you will get error
     * **/
    protected void onPostExecute(String file_url) {
        // dismiss the dialog after getting all products
        pDialog.dismiss();
        // updating UI from Background Thread
        runOnUiThread(new Runnable() {
            @Override
            public void run() {
                Toast.makeText(getApplicationContext(),
                        "Status tweeted successfully", Toast.LENGTH_SHORT)
                        .show();
                // Clearing EditText field
                txtUpdate.setText("");
            }
        });
    }

}

/**
 * Function to logout from twitter
 * It will just clear the application shared preferences
 * */
private void logoutFromTwitter() {
    // Clear the shared preferences
    Editor e = mSharedPreferences.edit();
    e.remove(PREF_KEY_OAUTH_TOKEN);
    e.remove(PREF_KEY_OAUTH_SECRET);
    e.remove(PREF_KEY_TWITTER_LOGIN);
    e.commit();

    // After this take the appropriate action
    // I am showing the hiding/showing buttons again
    // You might not needed this code
    btnLogoutTwitter.setVisibility(View.GONE);
    btnUpdateStatus.setVisibility(View.GONE);
    txtUpdate.setVisibility(View.GONE);
    lblUpdate.setVisibility(View.GONE);
    lblUserName.setText("");
    lblUserName.setVisibility(View.GONE);

    btnLoginTwitter.setVisibility(View.VISIBLE);
}

/**
 * Check user already logged in your application using twitter Login flag is
 * fetched from Shared Preferences
 * */
private boolean isTwitterLoggedInAlready() {
    // return twitter login status from Shared Preferences
    return mSharedPreferences.getBoolean(PREF_KEY_TWITTER_LOGIN, false);
}

protected void onResume() {
    super.onResume();
}

}


package com.androidhive.twitterconnect;

import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;

public class AlertDialogManager {
/**
* Function to display simple Alert Dialog
* @param context - application context
* @param title - alert dialog title
* @param message - alert message
* @param status - success/failure (used to set icon)
* - pass null if you don’t want icon
* */
public void showAlertDialog(Context context, String title, String message,
Boolean status) {
AlertDialog alertDialog = new AlertDialog.Builder(context).create();

    // Setting Dialog Title
    alertDialog.setTitle(title);

    // Setting Dialog Message
    alertDialog.setMessage(message);

    if(status != null)
        // Setting alert dialog icon
        //alertDialog.setIcon((status) ? R.drawable.success : R.drawable.fail);

    // Setting OK Button
    alertDialog.setButton("OK", new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int which) {
        }
    });

    // Showing Alert Message
    alertDialog.show();
}

}


package com.androidhive.twitterconnect;

import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;

public class ConnectionDetector {

private Context _context;

public ConnectionDetector(Context context){
    this._context = context;
}

/**
 * Checking for all possible internet providers
 * **/
public boolean isConnectingToInternet(){
    ConnectivityManager connectivity = (ConnectivityManager) _context.getSystemService(Context.CONNECTIVITY_SERVICE);
      if (connectivity != null)
      {
          NetworkInfo[] info = connectivity.getAllNetworkInfo();
          if (info != null)
              for (int i = 0; i < info.length; i++)
                  if (info[i].getState() == NetworkInfo.State.CONNECTED)
                  {
                      return true;
                  }

      }
      return false;
}

}


<!-- Twitter Login Button -->
<Button android:id="@+id/btnLoginTwitter"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="Login with Twitter"
    android:layout_marginLeft="10dip"
    android:layout_marginRight="10dip"
    android:layout_marginTop="30dip"/>
 
<!-- user name label -->
<TextView android:id="@+id/lblUserName"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:padding="10dip"
    android:layout_marginTop="30dip"/>

<!-- label update status -->
<TextView android:id="@+id/lblUpdate"
    android:text="Update Status"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_marginLeft="10dip"
    android:layout_marginRight="10dip"
    android:visibility="gone"/>
 
<!-- Tweet EditText -->
<EditText android:id="@+id/txtUpdateStatus"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_margin="10dip"
    android:visibility="gone"/>
 
<!-- Tweet Button -->
<Button android:id="@+id/btnUpdateStatus"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="Tweet"
    android:layout_marginLeft="10dip"
    android:layout_marginRight="10dip"
    android:visibility="gone"/>
 
<!-- Twitter Logout button -->
<Button android:id="@+id/btnLogoutTwitter"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="Logout from Twitter"
    android:layout_marginLeft="10dip"
    android:layout_marginRight="10dip"
    android:layout_marginTop="50dip"
    android:visibility="gone"/>

<uses-sdk
    android:minSdkVersion="8"
    android:targetSdkVersion="15" />

<application
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >
    <activity
        android:name=".MainActivity"
         >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
        <intent-filter>
            <action android:name="android.intent.action.VIEW" />
            <category android:name="android.intent.category.DEFAULT" />
            <category android:name="android.intent.category.BROWSABLE" />
            <data android:scheme="https" android:host="twitter.com"/>
        </intent-filter>
    </activity>
</application>
 
<!-- Permission - Internet Connect -->
<uses-permission android:name="android.permission.INTERNET" />
 
<!-- Network State Permissions -->
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

My Application Deatils :

Access level Read, write, and direct messages
API key U82wthaarTatPNwsba28g
Callback URL https://twitter.com/
Sign in with Twitter Yes
App-only authentication https://api.twitter.com/oauth2/token
Request token URL https://api.twitter.com/oauth/request_token
Authorize URL https://api.twitter.com/oauth/authorize
Access token URL https://api.twitter.com/oauth/access_token