public void onActivityReenter()

in Unsplash/app/src/main/java/com/example/android/unsplash/MainActivity.java [140:169]

26 lines of code
3 McCabe index (conditional complexity)


    public void onActivityReenter(int resultCode, Intent data) {
        postponeEnterTransition();
        // Start the postponed transition when the recycler view is ready to be drawn.
        grid.getViewTreeObserver().addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() {
            @Override
            public boolean onPreDraw() {
                grid.getViewTreeObserver().removeOnPreDrawListener(this);
                startPostponedEnterTransition();
                return true;
            }
        });

        if (data == null) {
            return;
        }

        final int selectedItem = data.getIntExtra(IntentUtil.SELECTED_ITEM_POSITION, 0);
        grid.scrollToPosition(selectedItem);

        PhotoViewHolder holder = (PhotoViewHolder) grid.
                findViewHolderForAdapterPosition(selectedItem);
        if (holder == null) {
            Log.w(TAG, "onActivityReenter: Holder is null, remapping cancelled.");
            return;
        }
        DetailSharedElementEnterCallback callback =
                new DetailSharedElementEnterCallback(getIntent());
        callback.setBinding(holder.getBinding());
        setExitSharedElementCallback(callback);
    }