PhoneGap Facebook Connect Plugin

This is the offical plugin for Facebook Connect in PhoneGap!

The Facebook Connect plugin for PhoneGap allows you to use the same JavaScript code in your web application as you use in your native PhoneGap application, but your native PhoneGap application will use the Facebook native app to perform Single Sign On for the user (if possible - if it isn't then it will fall back to dialog-based authentication).

This is all licensed under MIT except for app/www/facebook_js_sdk.js which is the Facebook JS SDK and is Apache 2.0.

Requirements

• PhoneGap v1.0+

The Facebook SDK (both native and JavaScript) is changing independent of this plugin. The working versions of the Facebook Android, JS and iOS SDKs are bundled in this project via git submodules.

To use this plugin you will need to make sure you've registered your Facebook app with Facebook and have an APP_ID (https://developers.facebook.com/apps). If you plan on rolling this out on Android, please note that you will need to generate a hash of your Android key(s) and submit those to the Developers page on Facebook to get it working. Furthermore, if you are generating this hash on Windows (specifically 64 bit versions), please use version 0.9.8e or 0.9.8d of OpenSSL for Windows and not 0.9.8k. Big ups to fernandomatos for pointing this out!

Project Structure

  |-example
  |  `-www
  |    `-index.html
  |-lib
  |  |-facebook-js-patch
  |  |-facebook-js-sdk
  |  |-facebook-android-sdk
  |  `-facebook-ios-sdk
  |-native
  |  |-android
  |  `-ios
  `-www
     `-pg-plugin-fb-connect.js

lib/facebook-js-patch is a diff file between the facebook-js-sdk and the modified file to get it working with this plugin. This plugin monkey-patches some of the facebook-js-sdk methods to hook in an interface into the native Facebook SDKs.

native/android and native/ios contain the native code for the plugin for both Android and iOS platforms.

www/pg-plugin-fb-connect.js is the JavaScript code for the plugin, this defines the JS API.

Getting Started

We've provided a few install scripts to get you rolling pretty quick. PLEASE NOTE: only Android works for the install scripts at this time.

1. Download the latest version of PhoneGap from www.phonegap.com.

2. Create an Android or iOS PhoneGap project. Let's assume you have this project under ~/phonegap-facebook.

3. Make sure you pull down all of the submodules by running git submodule update --init.

4. Depending what you've got handy, you could:

• ruby (TODO!): ./install ~/phonegap-facebook <platform>
• node: node install.js ~/phonegap-facebook <platform>
• Windows (TODO!): install.bat ~/phonegap-facebook <platform>

In the above, <platform> represents either "android" or "ios".

If you don't like this script magic, you can always roll up your sleeves and get into the nitty-gritty for the platform of your choice:

Android

1. Create a basic PhoneGap Android application.

2. In the PhoneGap Android application you will need to put the following in your res/xml/plugins.xml file:

   <plugin name="com.phonegap.facebook.Connect" value="com.phonegap.facebook.ConnectPlugin" />

3. You'll need to build + include the Facebook Android SDK and build + patch the Facebook JavaScript SDK:

• First run git submodule update --init to initialize and pull down the versions of the JS and Android Facebook SDKs that work with this plugin; they will end up under lib/.
• Next, build the JS file. cd lib/facebook-js-sdk and run php all.js.php >> ../facebook_js_sdk.js. This will create the JS SDK file under lib/facebook_js_sdk.js. Please note: the output filename is important as the patch assumes that filename!
• cd .. and apply the patch file by running patch < facebook-js-patch.
• NOTE: I haven't been able to compile the facebook android SDK into a jar with success. So, I just copied the source into my generated PhoneGap application directory and imported the generated PhoneGap Android package as an import at the top of FbDialog.java. TODO: Fix this :P. cd facebook-android-sdk/facebook and run jar cf facebook-android-sdk.jar src. This will create a facebook-android-sdk.jar file that you need to copy into your generated PhoneGap-Android's libs directory (and also add to your build path).

4. From the PhoneGap Facebook Connect Plugin folder copy the contents of the native/android/ folder into the root of your PhoneGap Android application.

5. From the PhoneGap Facebook Connect Plugin folder copy the www/pg-plugin-fb-connect.js and lib/facebook_js_sdk.js files into your application's assets/www folder.

Now you are ready to create your application! Check out the example folder for what the HTML, JS etc looks like. Note that you will need to replace your appId if you use the example index.html file.

You can run the application from either the command line (ant clean && ant debug install) or from Eclipse.

iOS (Mac OS X)

NOTE: If you are having problems with SBJSON conflicts, download the latest version of git clone the latest callback-ios code, build the installer, and run the installer to get updated!

1. Create a basic PhoneGap iOS application. See http://www.phonegap.com/start/#ios-x4

2. From the PhoneGap Facebook Connect Plugin folder copy the contents of the native/ios folder into your app in Xcode (usually in the Plugins folder group). Make sure it is added as a "group" (yellow folder)

3. Modify the APP_SECRET value in FacebookConnectPlugin.m with your Facebook app's APP_SECRET

4. Find the PhoneGap.plist file in the project navigator, expand the "Plugins" sub-tree, and add a new entry. For the key, add com.phonegap.facebook.Connect, and its value will be FacebookConnectPlugin

5. From the PhoneGap Facebook Connect Plugin folder copy the contents of the www folder into the www directory in Xcode (don't forget to add script tags in your index.html to reference any .js files copied over)

6. for Xcode 4, you will need to build it once, and heed the warning - this is an Xcode 4 template limitation. The warning instructions will tell you to drag copy the www folder into the project in Xcode (add as a folder reference which is a blue folder).

7. Under the group Supporting Files, find your [PROJECTNAME]-Info.plist, right-click on the file and select Open As -> Source Code, add the URL Scheme from the section below (you will need your Facebook APP_ID)

8. Run git submodule update --init to initialize and pull down the versions of the JS and iOS Facebook SDKs that work with this plugin; they will end up under lib/.

9. Next, build and patch the JS file:

    cd lib/facebook-js-sdk && php all.js.php >> ../facebook_js_sdk.js && cd .. && patch < facebook-js-patch 
   

10. This will create and patch the JS SDK file under lib/facebook_js_sdk.js. Please note: the output filename is important as the patch assumes that filename!

11. From the PhoneGap Facebook Connect Plugin folder copy the file lib/facebook_js_sdk.js into the www directory in Xcode (don't forget to add script tags in your index.html to reference the .js file copied over)

12. From lib/facebook-ios-sdk/src Drag the facebook-ios-sdk.xcodeproj file into your project, this will create it as a sub-project (change it's Base SDK to 'Latest iOS')

13. Click on your project's icon (the root element) in Project Navigator, select your Target, and the Build Phases tab.

14. From the Build Phases tab, expand Target Dependencies, then click on the + button

15. Add the build product from the facebook-ios-sdk sub-project

16. From the Build Settings tab, search for Header Search Paths

17. Add the value /Users/Shared/PhoneGap/Frameworks/PhoneGap.framework/Headers

18. From the facebook-ios-sdk.xcodeproj sub-project, drag out the FBConnect folder into your project's Plugins folder, and add it as a group (yellow folder).

19. Add the Facebook domains to the ExternalHosts lists, as described below.

20. Run the application in Xcode.

iOS URL Whitelist

The Facebook SDK will try to access various URLs, and their domains must be whitelisted in your PhoneGap.plist under ExternalHosts.

You can either add each subdomain separately:

• m.facebook.com
• graph.facebook.com
• api.facebook.com

Or you can allow all Facebook domains with:

• *.facebook.com

iOS URL Scheme

Make sure you add the scheme to your [PROJECTNAME]-Info.plist (located as one of the files in your Xcode project), substitute [APP_ID] and [SCHEME_ID] below to the appropriate values. This is to handle the re-direct from Mobile Safari or the Facebook app, after permission authorization.

• [SCHEME_ID] is usually a unique identifier for the scheme, in reverse domain name notation (i.e com.facebook.phonegap.myscheme)
• [APP_ID] is the Facebook app id given by Facebook

<key>CFBundleURLTypes</key>
<array>
	<dict>
		<key>CFBundleURLName</key>
		<string>[SCHEME_ID]</string>
		<key>CFBundleURLSchemes</key>
		<array>
			<string>fb[APP_ID]</string>
		</array>
	</dict>
</array>