Android Open Source - FaceTag-Android Login Activity

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License

The source code is released under:
GNU General Public License
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Java Source Code

package edu.grinnell.facetag;
/*w  ww.  j  a  v a2 s  .c om*/
import java.util.ArrayList;
import java.util.Collection;

import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.TextView;
import android.widget.Toast;

import com.actionbarsherlock.app.SherlockFragmentActivity;
import com.facebook.Request;
import com.facebook.Response;
import com.facebook.model.GraphUser;
import com.facebook.widget.LoginButton;
import com.facetag_android.R;
import com.parse.LogInCallback;
import com.parse.ParseException;
import com.parse.ParseFacebookUtils;
import com.parse.ParseUser;

/* Login to facebook here and link to parse */
public class LoginActivity extends SherlockFragmentActivity {
  private final String TAG = "LoginActivity";
  static TextView testText;
  LoginButton loginButton;
  ParseUser currentUser = ParseUser.getCurrentUser();
  ArrayList<ParseUser> invitedUsers = new ArrayList<ParseUser>();
  /*
   * Logs in to facebook
   */
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_login);



    loginButton = (LoginButton) findViewById(R.id.login);
    //Make button disapear when clicked
    //TODO add a loading animation
    loginButton.setOnClickListener(new View.OnClickListener() {
      @Override
      public void onClick(View v) {
        FBlogin();
        //loginButton.setVisibility(View.INVISIBLE);
      }
    });
    
      if ((currentUser != null) && ParseFacebookUtils.isLinked(currentUser)) {
            // Go to the user info activity
          Intent intent = new Intent(LoginActivity.this, GameScreenActivity.class);
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
        startActivity(intent);
        }
  }

  private void FBlogin() {
    Collection<String> permissions = new ArrayList<String>();
    permissions.add("email");
    ParseFacebookUtils.logIn(permissions, this, new LogInCallback() {
      @Override
      
      public void done(ParseUser user, ParseException err) {
        if (user == null) {
          Log.d(TAG, "FB login error: " + err.toString());
          Toast.makeText(getApplicationContext(), "Error Logging In " + err.toString(), 
                 Toast.LENGTH_SHORT).show();
          
        }
          
        else if(user.isNew()){
          Log.d(TAG, "New User signed in to FB");
          Log.d(TAG, user.getObjectId().toString());
          getFacebookInfoInBackground();
          Intent intent = new Intent(LoginActivity.this, GameScreenActivity.class);
          intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
          intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
          startActivity(intent);
        } else { 
          Log.d(TAG, "User signed in to FB");
          Log.d(TAG, user.getObjectId().toString());
          getFacebookInfoInBackground();
          Intent intent = new Intent(LoginActivity.this, GameScreenActivity.class);
          intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
          intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
          startActivity(intent);
        }
      }
    });
  }

  private static void getFacebookInfoInBackground() {
    Request.newMeRequest(ParseFacebookUtils.getSession(),
        new Request.GraphUserCallback() {
          @Override
          public void onCompleted(GraphUser user, Response response) {
            if (user != null) {
              ParseUser.getCurrentUser().put("facebookId",
                  user.getId());
              ParseUser.getCurrentUser().put("fullName",
                  user.getName());
              ParseUser.getCurrentUser().put("firstName",
                  user.getFirstName());
              ParseUser.getCurrentUser().put("lastName",
                  user.getLastName());
              ParseUser.getCurrentUser().put("email",
                  user.getProperty("email"));
              String imageURL = "https://graph.facebook.com/"
                  + user.getId()
                  + "/picture?width=200&height=200";
              ParseUser.getCurrentUser().put("profilePictureURL",
                  imageURL);
              ParseUser.getCurrentUser().saveInBackground();
            }
          }
        }).executeAsync();
  }

  @Override
  protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    ParseFacebookUtils.finishAuthentication(requestCode, resultCode, data);
  }

  
     
    

}
Java Source Code List
