Calling Google Play Game Services from a fragment

Question

I have implemented some Google Play Game Services features in my Android app as a separate Activity and I am now trying to rewrite my code as an (Action Bar Sherlock) fragme

Answer 1

You can forward the onActivityResult call to the fragment like this:

We should bitwise shift a request code by 16 bits.

public static final int REQUEST_CHECK_SETTINGS = 1<<16; //shifted 1 16 bits

Add this to the activity who owns the fragment.

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
}

Note: I've figured this out from the source code of onActivityResult in FragmentActivity. It is shifting the requestCode 16 bits to the right.

/**
 * Dispatch incoming result to the correct fragment.
 */
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    mFragments.noteStateNotSaved();
    int index = requestCode>>16;
    if (index != 0) {
        index--;
        final int activeFragmentsCount = mFragments.getActiveFragmentsCount();
        if (activeFragmentsCount == 0 || index < 0 || index >= activeFragmentsCount) {
            Log.w(TAG, "Activity result fragment index out of range: 0x"
                    + Integer.toHexString(requestCode));
            return;
        }
        final List activeFragments =
                mFragments.getActiveFragments(new ArrayList(activeFragmentsCount));
        Fragment frag = activeFragments.get(index);
        if (frag == null) {
            Log.w(TAG, "Activity result no fragment exists for index: 0x"
                    + Integer.toHexString(requestCode));
        } else {
            frag.onActivityResult(requestCode&0xffff, resultCode, data);
        }
        return;
    }

    super.onActivityResult(requestCode, resultCode, data);
}

Note 2: I would be glad if someone could tell me why using this method would be a bad approach