Android Open Source - City-Outdoors-Android Log In Twitter Activity

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License

The source code is released under:

Copyright (c) 2012, Edinburgh Council All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are ...

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Java Source Code

package uk.co.jarofgreen.cityoutdoors.UI;
/*from   www .ja v  a 2 s  .com*/



import uk.co.jarofgreen.cityoutdoors.Service.LoadUserDataService;
import uk.co.jarofgreen.cityoutdoors.Service.SendFeatureFavouriteService;
import uk.co.jarofgreen.cityoutdoors.R;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.webkit.CookieManager;
import android.webkit.CookieSyncManager;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.Toast;
/**
 * 
 * @author James Baster  <james@jarofgreen.co.uk>
 * @copyright City of Edinburgh Council & James Baster
 * @license Open Source under the 3-clause BSD License
 * @url https://github.com/City-Outdoors/City-Outdoors-Android
 */
public class LogInTwitterActivity extends BaseActivity {

  WebView webview;
  
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.login_twitter);
        
        webview = (WebView)findViewById(R.id.webview);
        webview.loadUrl(getString(R.string.server_url)+"/android/loginTwitter.php");
        JavaScriptInterface ji = new JavaScriptInterface(this);
        // Old servers may have the old name, leave for backwards compatability
        webview.addJavascriptInterface(ji, "HeresATree");
        // But this is the new name.
        webview.addJavascriptInterface(ji, "CityOutdoors");
        webview.setWebViewClient(new WebViewClient());
        
        // Remove all cookies. This is so if the last Twitter user checked "remember me" it won't.
        // Because if you do, Twitter logs you straight in which is a security risk. 
        // Even if the last user remembered they checked "remember me" and tried to return to 
        //     the twitter site to logout, there is no way to do that.
        CookieSyncManager.createInstance(this); 
        CookieManager cookieManager = CookieManager.getInstance();
        cookieManager.removeAllCookie();
        
        WebSettings webSettings = webview.getSettings();
        webSettings.setJavaScriptEnabled(true);
        webSettings.setSavePassword(false);

    }
      
    public class JavaScriptInterface {
      Context mContext;

      JavaScriptInterface(Context c) {
        mContext = c;
      }

    /** 
    * For later Android versions we will need some extra security stuff here, see:
    * http://android-developers.blogspot.co.uk/2013/02/security-enhancements-in-jelly-bean.html
    */
      public void authDone(int userID, String token) {

        SharedPreferences settings=PreferenceManager.getDefaultSharedPreferences(mContext);
        SharedPreferences.Editor editor = settings.edit();
        editor.putInt("userID", userID);
        editor.putString("userToken", token);
        editor.commit();

        // send data to and get data from server in background
          LogInTwitterActivity.this.startService(new Intent(LogInTwitterActivity.this, SendFeatureFavouriteService.class));
          LogInTwitterActivity.this.startService(new Intent(LogInTwitterActivity.this, LoadUserDataService.class));
        // start main screen
        Intent i = new Intent(LogInTwitterActivity.this, MainActivity.class);
        LogInTwitterActivity.this.startActivity(i);
        // kill login screen
        LogInTwitterActivity.this.finish();
      }
    }
  
}

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