@Override
public void onDetach() {
super.onDetach();
mCallbacks = null;
mWizardModel.unregisterListener(this);
}
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
if (!(activity instanceof Callbacks)) {
throw new ClassCastException("Activity must implement fragment's callbacks");
}
mCallbacks = (Callbacks) activity;
mWizardModel = mCallbacks.onGetModel();
mWizardModel.registerListener(this);
onPageTreeChanged();
}
@Override
public void onPageDataChanged(Page changedPage) {
ArrayList<ReviewItem> reviewItems = new ArrayList<ReviewItem>();
for (Page page : mWizardModel.getCurrentPageSequence()) {
page.getReviewItems(reviewItems);
}
Collections.sort(
reviewItems,
new Comparator<ReviewItem>() {
@Override
public int compare(ReviewItem a, ReviewItem b) {
return a.getWeight() > b.getWeight() ? +1 : a.getWeight() < b.getWeight() ? -1 : 0;
}
});
mCurrentReviewItems = reviewItems;
if (mReviewAdapter != null) {
mReviewAdapter.notifyDataSetInvalidated();
}
}