In this android example, we will learn how to Android Facebook Integration SDK to your android project, make facebook user login and post to facebook user wall.
Click here to see documentation given by facebook for android SDK integration. There are different steps, Now we are going to explain facebook SDK integration step by step.
Now create a new project in eclipse IDE by File -> New -> Android Project, fill all the required detail, Now a new project is created in project explorer.
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.javatportal.facebook"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk android:minSdkVersion="8" />
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name" >
<activity
android:label="@string/app_name"
android:name="com.javatportal.facebook.javatportalFacebookActivity" >
<intent-filter >
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
<!-- Connect to Internet Permissions -->
<uses-permission android:name="android.permission.INTERNET"/>
</manifest>
learnhowtocodeFacebookActivity.java
package com.learnhowtocode.facebook;
import android.app.Activity;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
import com.facebook.android.AsyncFacebookRunner;
import com.facebook.android.AsyncFacebookRunner.RequestListener;
import com.facebook.android.DialogError;
import com.facebook.android.Facebook;
import com.facebook.android.Facebook.DialogListener;
import com.facebook.android.FacebookError;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.net.MalformedURLException;
import org.json.JSONException;
import org.json.JSONObject;
@SuppressWarnings("deprecation")
public class javatportalFacebookActivity extends Activity {
// Facebook Application APP ID (Get it from faacebook app setting page)
private static String APP_ID = "912301902517993";
private AsyncFacebookRunner fbAsyncRunner;
private SharedPreferences fbPrefs;
// Create Object of Facebook Class
private Facebook facebook = new Facebook(APP_ID);
// Buttons
Button fbLoginButton;
Button fbMyProfileButton;
Button fbFriendButton;
Button fbPostToWallButton;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
fbLoginButton = (Button) findViewById(R.id.login_btn);
fbMyProfileButton = (Button) findViewById(R.id.profile_btn);
fbPostToWallButton = (Button) findViewById(R.id.wall_btn);
fbFriendButton = (Button) findViewById(R.id.friend_btn);
fbAsyncRunner = new AsyncFacebookRunner(facebook);
//Login button Clicked
fbLoginButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
facebookLogin();
}
});
// My facebook Profile info
fbMyProfileButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
getFacebookProfileInfo();
}
});
// Post at Facebook Wall
fbPostToWallButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
facebookWallPost();
}
});
// Post at Facebook Wall
fbFriendButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
getFacebookFriends();
}
});
}
// Function for login
public void facebookLogin() {
// Create shared preference to save login or not
fbPrefs = getPreferences(MODE_PRIVATE);
String access_token = fbPrefs.getString("access_token", null);
// Get Expire value from shared preference
long expires = fbPrefs.getLong("access_expires", 0);
if (access_token != null) {
// Get facebook access token to call facebook Graph api
facebook.setAccessToken(access_token);
fbLoginButton.setVisibility(View.INVISIBLE);
// Make button visible
fbMyProfileButton.setVisibility(View.VISIBLE);
fbPostToWallButton.setVisibility(View.VISIBLE);
fbFriendButton.setVisibility(View.VISIBLE);
}
if (expires != 0) {
facebook.setAccessExpires(expires);
}
if (!facebook.isSessionValid()) {
facebook.authorize(this,
new String[] { "email", "publish_stream","user_friends" },
new DialogListener() {
@Override
public void onCancel() {
// Here work for facebook login page cancel event
}
@Override
public void onComplete(Bundle values) {
// update Shared Preferences values
SharedPreferences.Editor editor = fbPrefs.edit();
editor.putString("access_token",
facebook.getAccessToken());
editor.putLong("access_expires",
facebook.getAccessExpires());
editor.commit();
// Make button invisible
fbLoginButton.setVisibility(View.INVISIBLE);
// Make button visible
fbMyProfileButton.setVisibility(View.VISIBLE);
fbPostToWallButton.setVisibility(View.VISIBLE);
fbFriendButton.setVisibility(View.VISIBLE);
}
@Override
public void onError(DialogError error) {
// Here Work for handle error
}
@Override
public void onFacebookError(FacebookError fberror) {
// Here Work for handle Facebook errors
}
});
}
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
facebook.authorizeCallback(requestCode, resultCode, data);
}
// My Profile information
public void getFacebookProfileInfo() {
// Make graph api call url like below line
// https://graph.facebook.com/me?access_token=<your-api-token>&format=json
fbAsyncRunner.request("me", new RequestListener() {
@Override
public void onComplete(String response, Object state) {
Log.d("Profile", response);
String json = response;
try {
// Got My Facebook Profile data in JSON format
JSONObject profile = new JSONObject(json);
// extract user name
final String name = profile.getString("name");
runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(getApplicationContext(), "My Name: " + name , Toast.LENGTH_LONG).show();
}
});
} catch (JSONException e) {
e.printStackTrace();
}
}
@Override
public void onIOException(IOException e, Object state) {
}
@Override
public void onFileNotFoundException(FileNotFoundException e,
Object state) {
}
@Override
public void onMalformedURLException(MalformedURLException e,
Object state) {
}
@Override
public void onFacebookError(FacebookError e, Object state) {
}
});
}
// My Freinds information
public void getFacebookFriends() {
// Make graph api call url like below line
// https://graph.facebook.com/me/friends?access_token=<your-api-token>&format=json
fbAsyncRunner.request("me/friends", new RequestListener() {
@Override
public void onComplete(String response, Object state) {
Log.d("Number Of Freinds", response);
String json = response;
try {
// Got My Facebook Freinds in JSON format
JSONObject profile = new JSONObject(json);
// extract user name
final String total_count = profile.getString("summary");
runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(getApplicationContext(), "Number Of Friends: " + total_count , Toast.LENGTH_LONG).show();
}
});
} catch (JSONException e) {
e.printStackTrace();
}
}
@Override
public void onIOException(IOException e, Object state) {
}
@Override
public void onFileNotFoundException(FileNotFoundException e,
Object state) {
}
@Override
public void onMalformedURLException(MalformedURLException e,
Object state) {
}
@Override
public void onFacebookError(FacebookError e, Object state) {
}
});
}
//Post to wall function
public void facebookWallPost() {
facebook.dialog(this, "feed", new DialogListener() {
@Override
public void onFacebookError(FacebookError e) {
}
@Override
public void onError(DialogError e) {
}
@Override
public void onComplete(Bundle values) {
}
@Override
public void onCancel() {
}
});
}
}
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