Getting AccessToken Using App id, App Secret Key of facebook app

Getting AccessToken  Using App id, App Secret Key of facebook app

use the url 

 https://graph.facebook.com/oauth/access_token? type=client_cred&client_id="+appId+"&client_secret="+appSecret

Sample Code:

 public static String getAccessToken() {


  InputStream is = null;

  String result = "";
  String url;
  String urlParameters = null;
  
  try {
   url = "https://graph.facebook.com/oauth/access_token?type=client_cred&client_id="+appId+"&client_secret="+appSecret;
   
   System.out.println("url is "+url);

   HttpClient httpclient = new DefaultHttpClient();
   HttpPost httppost = new HttpPost(url);
   HttpResponse response = httpclient.execute(httppost);
   HttpEntity entity = response.getEntity();
   is = entity.getContent();
  } catch (Exception e) {
   Log.e("log_tag", "Error in http connection " + e.toString());
  }
  // convert response to string
  try {

   BufferedReader reader = new BufferedReader(new InputStreamReader(
     is, "iso-8859-1"), 8);
   StringBuilder sb = new StringBuilder();
   String line = null;
   while ((line = reader.readLine()) != null) {
    sb.append(line + "\n");
   }
   is.close();

   result = sb.toString();

  } catch (Exception e) {
   Log.e("log_tag", "Error converting result " + e.toString());

  }

  return result;

 }

Facebook Fan Page Feeds in Android

Facebook Fan Page Feeds in Android

No Need for Appid,App scrt key etc...

For getting public fan page feed ,use the url 



 https://www.facebook.com/feeds/page.php?id=PAGE_ID&format=json

Sample Code:

public class MainActivity extends Activity {

 String pageId ="xxxxxxxxxxxx";
 InputStream is;
 String result;
 String finalPara;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
      
      
        try {
   
         String feed = "https://www.facebook.com/feeds/page.php?id="+pageId+"&format=json";
    
   HttpClient httpclient = new DefaultHttpClient();
   HttpPost httppost = new HttpPost(feed);
       HttpResponse response = httpclient.execute(httppost);
   HttpEntity entity = response.getEntity();
   is = entity.getContent();
  } catch (Exception e) {
   Log.e("log_tag", "Error in http connection " + e.toString());
  }
  // convert response to string
  try {

    BufferedReader reader = new BufferedReader(new InputStreamReader(
     is, "iso-8859-1"), 8);
   StringBuilder sb = new StringBuilder();
   String line = null;
   while ((line = reader.readLine()) != null) {
    sb.append(line + "\n");
   }
   is.close();

   result = sb.toString();
   
   System.out.println("feed details "+result);

  } catch (Exception e) {
   Log.e("log_tag", "Error converting result " + e.toString());

  }
        
    }

  

    




FaceBook Image Share in android

//After login,



public void login() {
facebook.authorize(
FaceBookAuthentication.this,
new String[] { "user_photos,publish_checkins,publish_actions,publish_stream" },
new DialogListener() {

public void onFacebookError(FacebookError e) {
showToast("Authentication with Facebook failed!");
finish();

}

public void onError(DialogError e) {
showToast("Authentication with Facebook failed!");
finish();

}

public void onComplete(Bundle values) {
postImage();
Toast.makeText(getApplicationContext(),
"Image Successfully Posted on Facebook.",
Toast.LENGTH_SHORT).show();

Intent i = new Intent(FaceBookAuthentication.this,
HairMagic.class);
startActivity(i);

}

public void onCancel() {
showToast("Authentication with Facebook cancelled!");
finish();

}
});


public void postImage() {
byte[] data = null;

Bundle params = new Bundle();
params.putString(Facebook.TOKEN, facebook.getAccessToken());
params.putString("method", "photos.upload");
params.putByteArray("picture", imageName.bytearray);
AsyncFacebookRunner mAsyncRunner = new AsyncFacebookRunner(facebook);
mAsyncRunner.request(null, params, "POST", new SampleUploadListener(),
null);

}