import fr.castorflex.android.verticalviewpager.VerticalViewPager; //导入依赖的package包/类
@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_vertical_parallax);
        final ParallaxBackgroundView bg = (ParallaxBackgroundView) findViewById(R.id.parallax_bg);
        bg.setParallaxBackgroundResource(R.drawable.vertical_parallax_bg);

//        BitmapFactory.Options options = new BitmapFactory.Options();
//        options.inJustDecodeBounds = true;
//        BitmapFactory.decodeResource(getResources(), R.drawable.vertical_parallax_bg, options);
//        options.inJustDecodeBounds = false;
//        options.inSampleSize = 2;
//        Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.vertical_parallax_bg, options);
//        //noinspection deprecation
//        bg.setParallaxBackground(new BitmapDrawable(bitmap));

        VerticalViewPager pager = (VerticalViewPager) findViewById(R.id.pager);
        final PagerAdapter adapter = new MyAdapter();
        pager.setAdapter(adapter);
        pager.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
            @Override
            public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
                // this is called while user's flinging with:
                // position is the page number
                // positionOffset is the percentage scrolled (0...1)
                // positionOffsetPixels is the pixel offset related to that percentage
                // so we got everything we need ....
                float finalPercentage = ((position + positionOffset) * 100 / adapter.getCount()); // percentage of this page+offset respect the total pages
                // now you have to scroll the background layer to this position. You can either adjust the clipping or
                // the background X coordinate, or a scroll position if you use an image inside an scrollview ...
                // I personally like to extend View and draw a scaled bitmap with a clipping region (drawBitmap with Rect parameters), so just modifying the X position then calling invalidate will do. See attached source ParallaxBackground
                bg.setParallaxPercent(finalPercentage);
            }
        });
    }
 

import fr.castorflex.android.verticalviewpager.VerticalViewPager; //导入依赖的package包/类
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    VerticalViewPager pager = (VerticalViewPager) findViewById(R.id.verticalviewpager);
    VerticalPageIndicator indicator = (VerticalPageIndicator) findViewById(R.id.indicator);

    adapter = new DummyAdapter();
    pager.setAdapter(adapter);

    indicator.setVerticalViewPager(pager);
}
 

import fr.castorflex.android.verticalviewpager.VerticalViewPager; //导入依赖的package包/类
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {

    View v = inflater.inflate(R.layout.fragment_monthly, container, false);

    vvPager = (VerticalViewPager) v.findViewById(R.id.vviewPager);
    vvPager.setAdapter(adapter);
    vvPager.setOnPageChangeListener(adapter);
    vvPager.setCurrentItem(adapter.getPosition(mYear, mMonth));
    vvPager.setOffscreenPageLimit(1);
    
    return v;
}
 

import fr.castorflex.android.verticalviewpager.VerticalViewPager; //导入依赖的package包/类
@Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        view = inflater.inflate(R.layout.fragment_post_page_readability, container, false);
        // against id collisions
        view.setId(hashCode());

        TextView postTitle = (TextView) view.findViewById(R.id.post_title);
        VerticalViewPager verticalViewPager = (VerticalViewPager) view.findViewById(R.id.vertical_view_pager);
        Fab fab = (Fab) view.findViewById(R.id.reddit_comment_fab);
//        VerticalViewPagerCirclePageIndicator vvpcpi = (VerticalViewPagerCirclePageIndicator) view.findViewById(R.id.readability_post_indicator);

        try {
            postTitle.setText(postObject.getJSONObject("data").getString("title"));
            String url = "http://readability.com/api/content/v1/parser" +
                    "?token=d48451fa7e61e79f0f7e215fe2258dc41b69ca75" +
                    "&url=" + postObject.getJSONObject("data").getString("url");

            ReadabilityAdapter readabilityAdapter = new ReadabilityAdapter(getChildFragmentManager(), url);
            verticalViewPager.setAdapter(readabilityAdapter);

//            vvpcpi.setVoteViewPager(verticalViewPager);
        } catch (JSONException e) {
            e.printStackTrace();
        }

        postTitle.setOnTouchListener(new CollapseViewOnTouchListener());

        return view;
    }
 

import fr.castorflex.android.verticalviewpager.VerticalViewPager; //导入依赖的package包/类
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View theView = inflater.inflate(R.layout.day_logs_chart_pager, container, false);
    VerticalViewPager verticalViewPager = (VerticalViewPager) theView.findViewById(R.id.verticalviewpager);

    verticalViewPager.setAdapter(getAdapter());
    verticalViewPager.setPageMargin(getResources().getDimensionPixelSize(R.dimen.pagemargin));
    verticalViewPager.setPageMarginDrawable(new ColorDrawable(getResources().getColor(android.R.color.holo_green_dark)));

    verticalViewPager.setPageTransformer(true, new ViewPager.PageTransformer() {
        @Override
        public void transformPage(View view, float position) {
            int pageWidth = view.getWidth();
            int pageHeight = view.getHeight();

            if (position < -1) { // [-Infinity,-1)
                // This page is way off-screen to the left.
                view.setAlpha(0);

            } else if (position <= 1) { // [-1,1]
                // Modify the default slide transition to shrink the page as well
                float scaleFactor = Math.max(MIN_SCALE, 1 - Math.abs(position));
                float vertMargin = pageHeight * (1 - scaleFactor) / 2;
                float horzMargin = pageWidth * (1 - scaleFactor) / 2;
                if (position < 0) {
                    view.setTranslationY(vertMargin - horzMargin / 2);
                } else {
                    view.setTranslationY(-vertMargin + horzMargin / 2);
                }

                // Scale the page down (between MIN_SCALE and 1)
                view.setScaleX(scaleFactor);
                view.setScaleY(scaleFactor);

                // Fade the page relative to its size.
                view.setAlpha(MIN_ALPHA +
                        (scaleFactor - MIN_SCALE) /
                                (1 - MIN_SCALE) * (1 - MIN_ALPHA));

            } else { // (1,+Infinity]
                // This page is way off-screen to the right.
                view.setAlpha(0);
            }
        }
    });
    return theView;
}
 

import fr.castorflex.android.verticalviewpager.VerticalViewPager; //导入依赖的package包/类
/**
 * Init the indicator view based on the VerticalViewPager item count
 * @param pager
 */
public void setVerticalViewPager(final VerticalViewPager pager){
    pager.post(new Runnable() {
        @Override
        public void run() {
            childCount = pager.getAdapter().getCount();
            init(pager);

        }
    });




}