How to integrate Facebook in my android application?

Question

I am writing a code for facebook integration.I created App Id and also imported facebook sdk.I put a button on my main activity which will open up a facebook dialog asking l

Answer 1

Please go through this https://github.com/facebook/facebook-android-sdk/ and https://developers.facebook.com/docs/getting-started/facebook-sdk-for-android/3.0/

private OnClickListener loginButtonListener = new OnClickListener() {
    public void onClick(View v) {
        if (!mFacebook.isSessionValid()) {
            Toast.makeText(Login.this, "Authorizing", Toast.LENGTH_SHORT)
                    .show();
            mFacebook.authorize(Login.this, new String[] { "" },
                    new LoginDialogListener());
        } else {
            Toast.makeText(Login.this, "Has valid session",
                    Toast.LENGTH_SHORT).show();
            try {
                JSONObject json = Util.parseJson(mFacebook.request("me"));
                String facebookID = json.getString("id");
                String firstName = json.getString("first_name");
                String lastName = json.getString("last_name");
                Toast.makeText(
                        Login.this,
                        "You already have a valid session, " + firstName
                                + " " + lastName
                                + ". No need to re-authorize.",
                        Toast.LENGTH_SHORT).show();
            } catch (Exception error) {
                Toast.makeText(Login.this, error.toString(),
                        Toast.LENGTH_SHORT).show();
            } catch (FacebookError error) {
                Toast.makeText(Login.this, error.toString(),
                        Toast.LENGTH_SHORT).show();
            }
        }
    }
};