How to Update Facebook Status from Android Application?

First Download Facebook Android SDK from github then Create New Project and Write below Code into OnClicklistener of Button.

MainActivity.java

Facebook facebook = new Facebook(APP_ID);
restoreCredentials(facebook);
messageToPost = "Hello Everyone.";
if (!facebook.isSessionValid()) {
            loginAndPostToWall();
} else {
            postToWall(messageToPost);
}


Declare below variables into MainActivity.java

private Facebook facebook;
private String messageToPost;
private static final String APP_ID = "152424051507008";
private static final String[] PERMISSIONS = new String[] { "publish_stream" };
private static final String TOKEN = "access_token";
private static final String EXPIRES = "expires_in";
private static final String KEY = "facebook-credentials";


Add below methods into your MainActivity.java

public boolean saveCredentials(Facebook facebook) {
    Editor editor = getApplicationContext().getSharedPreferences(KEY, Context.MODE_PRIVATE).edit();
    editor.putString(TOKEN, facebook.getAccessToken());
    editor.putLong(EXPIRES, facebook.getAccessExpires());
    return editor.commit();
}

public boolean restoreCredentials(Facebook facebook) {
    SharedPreferences sharedPreferences = getApplicationContext().getSharedPreferences(KEY, Context.MODE_PRIVATE);
    facebook.setAccessToken(sharedPreferences.getString(TOKEN, null));
    facebook.setAccessExpires(sharedPreferences.getLong(EXPIRES, 0));
    return facebook.isSessionValid();
}

public void loginAndPostToWall() {
    facebook.authorize(this, PERMISSIONS,Facebook.FORCE_DIALOG_AUTH, new LoginDialogListener());
}

public void postToWall(String message) {
    Bundle parameters = new Bundle();
    parameters.putString("message", message);
    parameters.putString("description", "topic share");
    try {
        facebook.request("me");
        String response = facebook.request("me/feed", parameters, "POST");
        Log.d("Tests", "got response: " + response);
        if (response == null || response.equals("") || response.equals("false")) {
            showToast("Blank response.");
        } else {
            showToast("Message posted to your facebook wall!");
        }
    } catch (Exception e) {
        showToast("Failed to post to wall!");
        e.printStackTrace();
    }
}

class LoginDialogListener implements DialogListener {
    public void onComplete(Bundle values) {
        saveCredentials(facebook);
        if (messageToPost != null) {
            postToWall(messageToPost);
        }
    }

    public void onFacebookError(FacebookError error) {
        showToast("Authentication with Facebook failed!");
    }

    public void onError(DialogError error) {
        showToast("Authentication with Facebook failed!");
    }

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

private void showToast(String message) {
    Toast.makeText(getApplicationContext(), message, Toast.LENGTH_SHORT)
                .show();
}


Now Run Your Project

Enjoy :-)

You can download complete source code from this link.

Android - Facebook Integration

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