Integrate facebook and its login system in app

Last updated on July 31st, 2016 at 11:13 am

In this post i am going to share your how to integrate a facebook login system in which we get some basic information of user like basic profile, Email, Date of Birth etc.  Now before we start creating our Facebook integration in our android application we need to create App in Facebook Developer page, sol let get started.

Create Facebook App

Step 1. Go to Facebook developer site and create new app select android platform

Step 2. Name your app whatever you like

 

Step 3. Create an App Id for your app

Step 4. Now follow step of setup and then you need to add your application package name

Now when you click on next button popup as you for package use you just click on blue button and continue.

 

Step 5. Now all setup done.

 

Step 6. Now last step is to make your app available for all user.

Setup Facebook SDK in your android application

Step 1. Create new Android Project in Android Studio (My Studio Version: 1.3.2 )

Step 2. Now open your build.gradle and add repositories 

repositories {
    mavenCentral()
}

And add dependencies in your

dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    compile 'com.android.support:appcompat-v7:23.0.1'
    compile 'com.facebook.android:facebook-android-sdk:4.6.0'
}

And Sync your project with Gradle, Once your project is sync your Facebook SDK integration is done.

Integrate Facebook login In your App

Step 1. Open your activity_main.xml and add facebook login button

 <com.facebook.login.widget.LoginButton xmlns:facebook="http://schemas.android.com/apk/res-auto"
                    android:id="@+id/login_facebook_button"
                    android:layout_width="34dp"
                    android:layout_height="34dp"
                    android:visibility="gone"
                    facebook:com_facebook_login_text=""
                    facebook:com_facebook_logout_text="" />

Step 2. Now open MainActivity.java  and add following code

public class MainActivity extends AppCompatActivity {

    LoginButton login_facebook_button;
    CallbackManager callbackManager;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        FacebookSdk.sdkInitialize(getApplicationContext());
        callbackManager = CallbackManager.Factory.create();
        setContentView(R.layout.activity_main);

        callbackManager = CallbackManager.Factory.create();

        // Social Buttons
        login_facebook_button = (LoginButton) findViewById(R.id.login_facebook_button);
		login_facebook_button.setReadPermissions(Arrays.asList("public_profile", "user_friends", "email", "user_birthday"));
        login_facebook_button.registerCallback(callbackManager, new FacebookCallback<LoginResult>() {
            @Override
            public void onSuccess(LoginResult loginResult) {
                // App code
                Log.e("onSuccess", "--------" + loginResult.getAccessToken());
                Log.e("Token", "--------" + loginResult.getAccessToken().getToken());
                Log.e("Permision", "--------" + loginResult.getRecentlyGrantedPermissions());

                Log.e("OnGraph", "------------------------");
                GraphRequest request = GraphRequest.newMeRequest(
                        loginResult.getAccessToken(),
                        new GraphRequest.GraphJSONObjectCallback() {
                            @Override
                            public void onCompleted(
                                    JSONObject object,
                                    GraphResponse response) {
                                // Application code
                                Log.e("GraphResponse", "-------------" + response.toString());
                            }
                        });
                Bundle parameters = new Bundle();
                parameters.putString("fields", "id,name,link,gender,birthday,email,first_name,last_name,location,locale,timezone");
                request.setParameters(parameters);
                request.executeAsync();

                Log.e("Total Friend in List", "----------------------");
                new GraphRequest(
                        loginResult.getAccessToken(),
                        "/me/friends",
                        null,
                        HttpMethod.GET,
                        new GraphRequest.Callback() {
                            public void onCompleted(GraphResponse response) {
                                /* handle the result */
                                Log.e("Friend in List", "-------------" + response.toString());
                            }
                        }
                ).executeAsync();
            }

            @Override
            public void onCancel() {
                // App code
            }

            @Override
            public void onError(FacebookException exception) {
                // App code
            }
        });
    }

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

Now using above code you can get Email, DOB and Basic profile info of user

All done now you can use user info and token in your application.

🙂