public View onCreateView()

in DisplayingBitmaps/Application/src/main/java/com/example/android/displayingbitmaps/ui/ImageGridFragment.java [95:154]
50 lines of code
6 McCabe index (conditional complexity)

    public View onCreateView(
            LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

        final View v = inflater.inflate(R.layout.image_grid_fragment, container, false);
        final GridView mGridView = v.findViewById(R.id.gridView);
        mGridView.setAdapter(mAdapter);
        mGridView.setOnItemClickListener(this);
        mGridView.setOnScrollListener(new AbsListView.OnScrollListener() {
            @Override
            public void onScrollStateChanged(AbsListView absListView, int scrollState) {
                // Pause fetcher to ensure smoother scrolling when flinging
                if (scrollState == AbsListView.OnScrollListener.SCROLL_STATE_FLING) {
                    // Before Honeycomb pause image loading on scroll to help with performance
                    mImageFetcher.setPauseWork(true);
                } else {
                    mImageFetcher.setPauseWork(false);
                }
            }

            @Override
            public void onScroll(AbsListView absListView, int firstVisibleItem,
                                 int visibleItemCount, int totalItemCount) {
            }
        });

        // This listener is used to get the final width of the GridView and then calculate the
        // number of columns and the width of each column. The width of each column is variable
        // as the GridView has stretchMode=columnWidth. The column width is used to set the height
        // of each view so we get nice square thumbnails.
        mGridView.getViewTreeObserver().addOnGlobalLayoutListener(
                new ViewTreeObserver.OnGlobalLayoutListener() {
                    @TargetApi(VERSION_CODES.JELLY_BEAN)
                    @Override
                    public void onGlobalLayout() {
                        if (mAdapter.getNumColumns() == 0) {
                            final int numColumns = (int) Math.floor(
                                    mGridView.getWidth() / (mImageThumbSize + mImageThumbSpacing));
                            if (numColumns > 0) {
                                final int columnWidth =
                                        (mGridView.getWidth() / numColumns) - mImageThumbSpacing;
                                mAdapter.setNumColumns(numColumns);
                                mAdapter.setItemHeight(columnWidth);
                                if (BuildConfig.DEBUG) {
                                    Log.d(TAG, "onCreateView - numColumns set to " + numColumns);
                                }
                                mGridView.getViewTreeObserver().removeOnGlobalLayoutListener(this);
                                if (Build.VERSION.SDK_INT >= VERSION_CODES.JELLY_BEAN) {
                                    mGridView.getViewTreeObserver()
                                            .removeOnGlobalLayoutListener(this);
                                } else {
                                    mGridView.getViewTreeObserver()
                                            .removeGlobalOnLayoutListener(this);
                                }
                            }
                        }
                    }
                });

        return v;
    }