Android Twitter integration using oauth and twitter4j

Question

I want to integrate twitter in an android application and found many tutorials. Implemented 2 of them. But after implementing, when ran the application, I came to know that

Answer 1

This is the working example from my code , i am using twitter4j and also you don't need to set any intent in manifest since i use webview instead of browser.

Place your consumer and secret key and you should be good to go

package com.example.mysituationtwittertest;

import twitter4j.Twitter;
import twitter4j.TwitterException;
import twitter4j.TwitterFactory;
import twitter4j.auth.AccessToken;
import twitter4j.auth.RequestToken;
import twitter4j.conf.Configuration;
import twitter4j.conf.ConfigurationBuilder;
import android.app.Activity;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.Button;
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 = "XXXXXXXXXXXXXXXXXXX"; // place your
                                                                // cosumer
                                                                // key here
static String TWITTER_CONSUMER_SECRET = "XXXXXXXXXXXXXXXX"; // place
                                                                                    // your
                                                                                    // consumer
                                                                                    // secret
                                                                                    // here

// 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 = "oauth://youdare";

// 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 btnShareTwitter;

WebView myWebView;

// Twitter
private static Twitter twitter;
private static RequestToken requestToken;
private AccessToken accessToken;

// Shared Preferences
private static SharedPreferences mSharedPreferences;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    // All UI elements
    btnShareTwitter = (Button) findViewById(R.id.btnShareTwitter);
    myWebView = (WebView) findViewById(R.id.webView1);

    myWebView.setWebViewClient(new WebViewClient() {
        @Override
        public boolean shouldOverrideUrlLoading(WebView webView, String url) {
            if (url != null && url.startsWith(TWITTER_CALLBACK_URL))
                new AfterLoginTask().execute(url);
            else
                webView.loadUrl(url);
            return true;
        }
    });

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

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

        @Override
        public void onClick(View arg0) {
            // Call login twitter function
            new LoginTask().execute();
        }
    });

}

/**
 * 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);
        } catch (TwitterException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

    }

    else {
        // user already logged into twitter
        Toast.makeText(getApplicationContext(),
                "Already Logged into twitter", Toast.LENGTH_LONG).show();
    }
}

/**
 * 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);
}

public void handleTwitterCallback(String url) {

    Uri uri = Uri.parse(url);

    // oAuth verifier
    final String verifier = uri
            .getQueryParameter(URL_TWITTER_OAUTH_VERIFIER);

    try {

        // Get the access token
        MainActivity.this.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());

        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("XXXXXXXXXXXXXXXXX");

    } catch (Exception e) {
        e.printStackTrace();
    }
}

class LoginTask extends AsyncTask {

    @Override
    protected Boolean doInBackground(Void... params) {
        // TODO Auto-generated method stub
        loginToTwitter();
        return true;
    }

    @Override
    protected void onPostExecute(Boolean result) {
        // TODO Auto-generated method stub

        myWebView.loadUrl(requestToken.getAuthenticationURL());
        myWebView.setVisibility(View.VISIBLE);
        myWebView.requestFocus(View.FOCUS_DOWN);

    }

}

class AfterLoginTask extends AsyncTask {

    @Override
    protected void onPreExecute() {
        // TODO Auto-generated method stub
        myWebView.clearHistory();
    }

    @Override
    protected Boolean doInBackground(String... params) {
        // TODO Auto-generated method stub
        handleTwitterCallback(params[0]);
        return true;
    }

    @Override
    protected void onPostExecute(Boolean result) {
        // TODO Auto-generated method stub
        myWebView.setVisibility(View.GONE);
        Toast.makeText(MainActivity.this, "Tweet Successful",
                Toast.LENGTH_SHORT).show();

    }

}

@Override
public void onBackPressed() {
    if (myWebView.getVisibility() == View.VISIBLE) {
        if (myWebView.canGoBack()) {
            myWebView.goBack();
            return;
        } else {
            myWebView.setVisibility(View.GONE);
            return;
        }
    }
    super.onBackPressed();
}

}