public void onLoadFinished()

in Leanback/app/src/main/java/com/example/android/tvleanback/ui/MainFragment.java [238:304]
46 lines of code
6 McCabe index (conditional complexity)

    public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
        if (data != null && data.moveToFirst()) {
            final int loaderId = loader.getId();

            if (loaderId == CATEGORY_LOADER) {

                // Every time we have to re-get the category loader, we must re-create the sidebar.
                mCategoryRowAdapter.clear();

                // Iterate through each category entry and add it to the ArrayAdapter.
                while (!data.isAfterLast()) {

                    int categoryIndex =
                            data.getColumnIndex(VideoContract.VideoEntry.COLUMN_CATEGORY);
                    String category = data.getString(categoryIndex);

                    // Create header for this category.
                    HeaderItem header = new HeaderItem(category);

                    int videoLoaderId = category.hashCode(); // Create unique int from category.
                    CursorObjectAdapter existingAdapter = mVideoCursorAdapters.get(videoLoaderId);
                    if (existingAdapter == null) {

                        // Map video results from the database to Video objects.
                        CursorObjectAdapter videoCursorAdapter =
                                new CursorObjectAdapter(new CardPresenter());
                        videoCursorAdapter.setMapper(new VideoCursorMapper());
                        mVideoCursorAdapters.put(videoLoaderId, videoCursorAdapter);

                        ListRow row = new ListRow(header, videoCursorAdapter);
                        mCategoryRowAdapter.add(row);

                        // Start loading the videos from the database for a particular category.
                        Bundle args = new Bundle();
                        args.putString(VideoContract.VideoEntry.COLUMN_CATEGORY, category);
                        mLoaderManager.initLoader(videoLoaderId, args, this);
                    } else {
                        ListRow row = new ListRow(header, existingAdapter);
                        mCategoryRowAdapter.add(row);
                    }

                    data.moveToNext();
                }

                // Create a row for this special case with more samples.
                HeaderItem gridHeader = new HeaderItem(getString(R.string.more_samples));
                GridItemPresenter gridPresenter = new GridItemPresenter(this);
                ArrayObjectAdapter gridRowAdapter = new ArrayObjectAdapter(gridPresenter);
                gridRowAdapter.add(getString(R.string.grid_view));
                gridRowAdapter.add(getString(R.string.guidedstep_first_title));
                gridRowAdapter.add(getString(R.string.error_fragment));
                gridRowAdapter.add(getString(R.string.personal_settings));
                ListRow row = new ListRow(gridHeader, gridRowAdapter);
                mCategoryRowAdapter.add(row);

                startEntranceTransition(); // TODO: Move startEntranceTransition to after all
                // cursors have loaded.
            } else {
                // The CursorAdapter contains a Cursor pointing to all videos.
                mVideoCursorAdapters.get(loaderId).changeCursor(data);
            }
        } else {
            // Start an Intent to fetch the videos.
            Intent serviceIntent = new Intent(getActivity(), FetchVideoService.class);
            getActivity().startService(serviceIntent);
        }
    }