Adding a Google +1 button in Android App

Question

I was just wondering if there was anyway to add a Google +1 button inside my Android app. I have seen a +1 on the Android Market so I would think there would be some way to

Answer 1

the accepted answer is outdated....

XML :

Activity :

// The request code must be 0 or greater.

    private static final int PLUS_ONE_REQUEST_CODE = 0;

protected void onResume() {
    super.onResume();
    // Refresh the state of the +1 button each time the activity receives focus.
    mPlusOneButton.initialize(URL, PLUS_ONE_REQUEST_CODE);
}

and even before that fallow this link :

https://developers.google.com/+/mobile/android/getting-started