Issue in Android-Twitter integration

Question

I have integrated Twitter in android application using twitter4j library and it works fine with posting on Twitter.

I handle it well when user signs in and then flow comes back to application. I continue with status update in this case.

But the problem occurs when user clicks cancel button instead of sign in. How do I know that user clicked cancel button?

Answer 1

I solved this problem by peeking into Intent passed in call back.
When user signs in, Intent contains a parameter oauth_verifier, whereas when user denies to continue by clicking on cancel button, Intent contains a parameter denied.

// Handle Twitter call back
private void handleTwitterCallBack() {

    Uri uri = getIntent().getData();

    // If got redirected from Twitter page to application
    if (uri != null
            && uri.toString().startsWith(RS_Twitter.TWITTER_CALLBACK_URL)) {

        if (uri.getQueryParameter(RS_Twitter.TWITTER_USER_DENIED) != null) {

            // User denied to sign in

        } else if (uri
                .getQueryParameter(RS_Twitter.TWITTER_OAUTH_VERIFIER_URL) != null) {

            // Intent contains Twitter verifier. User authorized the application.
        }
    }
}