Facebook authentication without login button

Question

I have followed some Facebook API 3.0 tutorials, including the Login/Logout and the Publish To Feed examples. So the login works this way:

1. App opens, shows a f

Answer 1

This simple library can help you: https://github.com/sromku/android-simple-facebook

Just add this library to your project and make the reference from this library to Facebook SDK 3.0.x and add reference from your app to this library.

Then you can login without the LoginButton and do simple actions like publish feeds, get profile/friends, send invite and more.

This is how the login look like:

OnLoginOutListener onLoginOutListener = new SimpleFacebook.OnLoginOutListener()
{

    @Override
    public void onFail()
    {
        Log.w(TAG, "Failed to login");
    }

    @Override
    public void onException(Throwable throwable)
    {
        Log.e(TAG, "Bad thing happened", throwable);
    }

    @Override
    public void onThinking()
    {
        // show progress bar or something to the user while login is happening
        Log.i(TAG, "In progress");
    }

    @Override
    public void onLogout()
    {
        // change the state of the button or do whatever you want
        Log.i(TAG, "Logged out");
    }

    @Override
    public void onLogin()
    {
        // change the state of the button or do whatever you want
        Log.i(TAG, "Logged in");
    }
};

// set login/logut listener
mSimpleFacebook.setLogInOutListener(onLoginOutListener);

// do the login action
mSimpleFacebook.login(MainActivity.this);

Then, in onLogin() callback method you can publish feed like this:

// build feed
Feed feed = new Feed.Builder()
    .setMessage("Clone it out...")
    .setName("Simple Facebook for Android")
    .setCaption("Code less, do the same.")
    .setDescription("The Simple Facebook library project makes the life much easier by coding less code for being able to login, publish feeds and open graph stories, invite friends and more.")
    .setPicture("https://raw.github.com/sromku/android-simple-facebook/master/Refs/android_facebook_sdk_logo.png")
    .setLink("https://github.com/sromku/android-simple-facebook")
    .build();

// publish the feed
mSimpleFacebook.publish(feed);

Hope it can help you.