@Override
protected void dispatchSaveInstanceState(SparseArray<Parcelable> container) {
    // Create a SparseArray just for us!
    SparseArray mySparseArray = new SparseArray(mChildrenCount + 1); // +1 for our ViewGroup's state.

    // Repeat the normal logic for this method, but pass our "mySparseArray" instead of "container"
    super.dispatchSaveInstanceState(mySparseArray);
    final int count = mChildrenCount;
    final View[] children = mChildren;
    for (int i = 0; i < count; i++) {
        View c = children[i];
        if ((c.mViewFlags & PARENT_SAVE_DISABLED_MASK) != PARENT_SAVE_DISABLED) {
            c.dispatchSaveInstanceState(mySparseArray);
        }
    }

    // Put mySparseArray in the container we were given.
    container.put(getId(), mySparseArray);
}