Facebook Android App tutorial using Html5 and Jquery Mobile

In this article i would like to explain "How to create a Facebook android app using html5 and jquery mobile". I am already explained how to integrate Facebook login button in websites.Now the main aim of this post is to integrate Facebook login button in Mobile web based application.

What we are going to do here..?

1.Integrating Facebook login button

2.Displaying Friends list of respective author

3.Integrating logout button

What are the Tasks..?

1.Create a Facebook application @ developers.facebook.com to get API id

2.Create a layout using html5 and jquery mobile

3.Implement the Facebook script in HTML page

Lets start

1.Create a Facebook application

Please check this tutorial "How to create Facebook application".

and after successful creation of Facebook application we will get API key.please save it.The key will used later

Next ,Create a Layout using html5 and Jquery mobile

First Open a Html page and save as index.html

Next, Add the following source files in the header

Next,Add this code inside the body tag

Facebook PhoneGap Application




Login
                

Hi,  






Get friends
logout

Next,Open a empty javascript file and save as facebookscript.js

Add the following code inside the facebookscript.js file

// Load the SDK Asynchronously
(function(d) {
    var js, id = 'facebook-jssdk', ref = d.getElementsByTagName('script')[0];
    if (d.getElementById(id)) { return; }
    js = d.createElement('script'); js.id = id; js.async = true;
    js.src = "//connect.facebook.net/en_US/all.js";
    ref.parentNode.insertBefore(js, ref);
} (document));

// Init the SDK upon load
window.fbAsyncInit = function() {
    FB.init({
        appId: 'Your app Id Code', // App ID
        channelUrl: '//' + window.location.hostname + '/channel', // Path to your Channel File
        status: true, // check login status
        cookie: true, // enable cookies to allow the server to access the session
        xfbml: true  // parse XFBML
    });

    // listen for and handle auth.statusChange events
    FB.Event.subscribe('auth.statusChange', function(response) {
        if (response.authResponse) {
            // user has auth'd your app and is logged into Facebook
            FB.api('/me', function(me) {
                if (me.name) {
                    document.getElementById('auth-displayname').innerHTML = me.name;
                    updateUserInfo(response);
                }
            })
            document.getElementById('auth-loggedout').style.display = 'none';
            document.getElementById('auth-loggedin').style.display = 'block';
        } else {
            // user has not auth'd your app, or is not logged into Facebook
            document.getElementById('auth-loggedout').style.display = 'block';
            document.getElementById('auth-loggedin').style.display = 'none';
        }
    });
    $("#auth-loginlink").click(function() { FB.login(); });
    $("#auth-logoutlink").click(function() { FB.logout(function() { window.location.reload(); }); });
}
function updateUserInfo(response) {
    FB.api('/me', function(response) {
        document.getElementById('user-info').innerHTML = '' + response.name;
    });
}

function getUserFriends() {
    FB.api('/me/friends?fields=name,picture', function(response) {
        console.log('Got friends: ', response);

        if (!response.error) {
            $('#categorieslist').empty();
            var markup = '';

            var friends = response.data;

            for (var i = 0; i < friends.length && i < 25; i++) {
                var friend = friends[i];

                markup += '
 ' + friend.name + '
';
            }
            $("#categorieslist").html(markup);
            $("#categorieslist").listview("refresh");
            //document.getElementById('user-friends').innerHTML = markup;
        }
    });
}

Note : Please replace the "Your app Id Code" with your generated app id

That's it you almost done..!

Now create two html pages

One page for displaying friends list and another for logout page

Open the friends list page and save as FriendsList.html and write the following code inside the head tags

and write the following code inside the body tag

Facebook Phonegap Application



Hi, 






Get friends
logout

That's it..You're facebook Phonegap application is ready.

Now its time to build the application for android,blackberry,Iphone etc..

Here is the procedure to build the application

Build the phonegap application

That's it..now install in your mobile and test it..Have a fun