Android Open Source - NewAndroidTwitter Twitter

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License

The source code is released under:
Apache License
If you think the Android project NewAndroidTwitter listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.
Java Source Code

package net.londatiga.android.twitter;
//from ww w  .  j a  va 2s  . c  om
import java.net.URL;

import android.app.ProgressDialog;
import android.os.AsyncTask;

import android.content.Context;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;

import net.londatiga.android.twitter.oauth.OauthAccessToken;
import net.londatiga.android.twitter.oauth.OauthConsumer;
import net.londatiga.android.twitter.oauth.OauthProvider;
import net.londatiga.android.twitter.oauth.OauthUtil;

/**
 * Main twitter android lib interface.
 * 
 * @author Lorensius W. L. T <lorenz@londatiga.ent>
 *
 */
public class Twitter {
  private Context mContext;
  
  private SharedPreferences mSharedPref;
  private Editor mEditor;
  
  private OauthConsumer mConsumer;
  private OauthAccessToken mAccessToken;
  private OauthProvider mProvider;
  
  private SigninListener mListener;
  
  private RequestTokenTask mRequestTokenTask;
  private AccesTokenTask mAccesTokenTask;

  private boolean mIsLoading = false;

  private static final String SHARED_PREF = "Android_Twitter_Preferences";
  private static final String ACCESS_TOKEN = "access_token";
  private static final String ACCESS_TOKEN_SECRET = "access_token_secret";
  
  public Twitter(Context context, String clientId, String clientSecret, String callbackUrl, boolean signinOnly) {
    init(context, clientId, clientSecret, callbackUrl, signinOnly);
  }
  
  public Twitter(Context context, String clientId, String clientSecret, String callbackUrl) {
    init(context, clientId, clientSecret, callbackUrl, false);
  }
  
  public OauthConsumer getConsumer() {
    return mConsumer;
  }
  
  public OauthAccessToken getAccessToken() {
    return mAccessToken;
  }
  
  public boolean sessionActive() {
    return (mAccessToken == null) ? false : true;
  }
  
  public void clearSession() {
    mEditor.putString(ACCESS_TOKEN, null);
    mEditor.putString(ACCESS_TOKEN_SECRET, null);
    
    mEditor.commit();
  }
  
  public void signin(SigninListener listener) {
    mListener = listener;
    
    (mRequestTokenTask = new RequestTokenTask()).execute();
  }
  
  public void cancel() {
    if (mIsLoading) {
      if (mAccesTokenTask != null) {
        mAccesTokenTask.cancel(true);
      }
      
      if (mRequestTokenTask == null) {
        mRequestTokenTask.cancel(true);
      }
    }
  }
  
  private void init(Context context, String clientId, String clientSecret, String callbackUrl, boolean signinOnly) {
    String url  = (signinOnly) ? OauthUtil.OAUTH_AUTHENTICATION_URL : OauthUtil.OAUTH_AUTHORIZATION_URL;
    
    mContext  = context;
    
    mConsumer   = new OauthConsumer(clientId, clientSecret, callbackUrl);
    mProvider  = new OauthProvider(mConsumer, OauthUtil.OAUTH_REQUEST_URL, url, OauthUtil.OAUTH_ACCESSTOKEN_URL);
    
    mSharedPref  = context.getSharedPreferences(SHARED_PREF, Context.MODE_PRIVATE);    
    mEditor    = mSharedPref.edit();
    
    loadAccessToken();
  }
  
  private void loadAccessToken() {
    String token     = mSharedPref.getString(ACCESS_TOKEN, null);
    String tokenSecret   = mSharedPref.getString(ACCESS_TOKEN_SECRET, null);
    
    if (token != null && tokenSecret != null) {
      mAccessToken = new OauthAccessToken(token, tokenSecret);
    }
  }
  
  private void storeAccessToken(String token, String tokenSecret) {
    mEditor.putString(ACCESS_TOKEN, token);
    mEditor.putString(ACCESS_TOKEN_SECRET, tokenSecret);
    
    mEditor.commit();
  }
  
  private void openAuthorizationDialog(final String url) {
    TwitterDialog dialog = new TwitterDialog(mContext, 
        mConsumer.getCallbackUrl(),
        url, new TwitterDialog.TwDialogListener() {
          
          @Override
          public void onError(String value) {
            mListener.onError("Authorization failed");
          }
          
          @Override
          public void onComplete(String verifier) {
            (mAccesTokenTask = new AccesTokenTask(verifier)).execute(); 
          }
        });
    
    dialog.show();
  }
  
  public class RequestTokenTask extends AsyncTask<URL, Integer, Long> {
    ProgressDialog progressDlg;
    
    String authUrl ="";
    
    public RequestTokenTask() {      
      progressDlg = new ProgressDialog(mContext);
      
      progressDlg.setMessage("Signing in Twitter...");
      progressDlg.setCancelable(true);
    }
    
    protected void onCancelled() {
      progressDlg.dismiss();
      
      mIsLoading = false;
    }
    
      protected void onPreExecute() {
        progressDlg.show();
        
        mIsLoading = true;
      }
    
        protected Long doInBackground(URL... urls) {         
            long result = 0;
            
            try {
              authUrl = mProvider.getAuthorizationUrl();        
            } catch (Exception e) { 
              e.printStackTrace();
            }
            
            return result;
        }

        protected void onProgressUpdate(Integer... progress) {                
        }

        protected void onPostExecute(Long result) {
          mIsLoading = false;
          
          progressDlg.dismiss();
          
          if (!authUrl.equals("")) {
            openAuthorizationDialog(authUrl);
          } else {
            mListener.onError("Failed to get request token");
          }
        }                
    }
  
  public class AccesTokenTask extends AsyncTask<URL, Integer, Long> {
    ProgressDialog progressDlg;
        
    String verifier="";
    
    OauthAccessToken accessToken;
    
    public AccesTokenTask(String verifier) {
      this.verifier  = verifier;
      
      progressDlg   = new ProgressDialog(mContext);
      
      progressDlg.setMessage("Signing in Twitter...");
      progressDlg.setCancelable(true);
    }
    
    protected void onCancelled() {
      progressDlg.dismiss();
      
      mIsLoading = false;
    }
    
      protected void onPreExecute() {
        progressDlg.show();
        
        mIsLoading = true;
      }
    
        protected Long doInBackground(URL... urls) {         
            long result = 0;
            
            try {
              accessToken = mProvider.retreiveAccessToken(verifier);              
            } catch (Exception e) { 
              e.printStackTrace();
            }
            
            return result;
        }

        protected void onProgressUpdate(Integer... progress) {                
        }

        protected void onPostExecute(Long result) {
          mIsLoading = false;
          
          progressDlg.dismiss();
          
          if (accessToken != null) {
            mAccessToken = accessToken;
            
            storeAccessToken(accessToken.getToken(), accessToken.getSecret());
            
            mListener.onSuccess(accessToken, mProvider.getUserId(), mProvider.getScreenName());
          } else {
            mListener.onError("Failed to get access token");
          }
        }                
    }
  
  public interface SigninListener {
    public abstract void onSuccess(OauthAccessToken accessToken, String userId, String screenName);
    public abstract void onError(String error);
  }
}
Java Source Code List
