clkasd / carouselviewproject Goto Github PK

@Override
public Fragment getItem(int position) {
    // TODO Auto-generated method stub
    Log.d(TAG,"getItem called");
    /*if(arg0 == 0)
    {
        return FragmentMap0Position.newInstance(arg0);
    }
    else
    {
        return FragmentMapPosition.newInstance(arg0);
    }*/
    if (position == MainActivity.FIRST_PAGE)
        scale = MainActivity.BIG_SCALE;         
    else
    {
        scale = MainActivity.SMALL_SCALE;
        IsBlured=true;

    }
    cur = getRootView(position);
    next = getRootView(position +1);
    prev = getRootView(position -1);
    return MyFragment.newInstance(position,scale,IsBlured);

    //return null;
}

@Override
public int getCount() {
    // TODO Auto-generated method stub
    lastPage = invitationArrayList.size()-1;
    return invitationArrayList.size();
}

 OnPageChangeListener onPageChangeListener = new OnPageChangeListener() {

    @Override
    public void onPageSelected(int position) {
        // TODO Auto-generated method stub
        if(lastPage<=position)
        {
            swipedLeft=true;
        }
        else if(lastPage>position)
        {
            swipedLeft=false;
        }
        lastPage=position;
        Toast.makeText(context,"bottom view pager adapter position:"+position,1000).show();
        //currentPagePosition = position;
    }

    @Override
    public void onPageScrolled(int position, float positionOffset,
            int positionOffsetPixels) {
        // TODO Auto-generated method stub
        Log.d(TAG, "onPageScrolled");
        //super();
        if (positionOffset >= 0f && positionOffset <= 1f)
        {
            Log.d(TAG, "positionOffset >= 0f && positionOffset <= 1f");
            positionOffset=positionOffset*positionOffset;
            cur = getRootView(position);
            next = getRootView(position +1);
            prev = getRootView(position -1);
            nextnext=getRootView(position +2);

            ViewHelper.setAlpha(cur, maxAlpha-0.5f*positionOffset);
            ViewHelper.setAlpha(next, minAlpha+0.5f*positionOffset);
            ViewHelper.setAlpha(prev, minAlpha+0.5f*positionOffset);


            if(nextnext!=null)
            {   
                //ViewHelper.setAlpha(nextnext, minAlpha);
            //  ViewHelper.setRotationY(nextnext, -minDegree);
            }
            if(cur!=null)
            {
            /*  cur.setScaleBoth(MainActivity.BIG_SCALE 
                        - MainActivity.DIFF_SCALE * positionOffset);

                ViewHelper.setRotationY(cur, 0);*/
            }

            if(next!=null)
            {
                /*next.setScaleBoth(MainActivity.SMALL_SCALE 
                        + MainActivity.DIFF_SCALE * positionOffset);
                ViewHelper.setRotationY(next, -minDegree);*/
            }
            if(prev!=null)
            {
                //ViewHelper.setRotationY(prev, minDegree);
            }


            /*To animate it properly we must understand swipe direction
             * this code adjusts the rotation according to direction.
             */
            if(swipedLeft)
            {
                if(next!=null)
                    //ViewHelper.setRotationY(next, -minDegree+minDegree*positionOffset);
                {

                }
                if(cur!=null)
                    //ViewHelper.setRotationY(cur, 0+minDegree*positionOffset);
                {

                }
            }
            else 
            {
                if(next!=null)
                    //ViewHelper.setRotationY(next, -minDegree+minDegree*positionOffset);
                if(cur!=null)
                {
                    //ViewHelper.setRotationY(cur, 0+minDegree*positionOffset);
                }
            }
        }
        if(positionOffset>=1f)
        {
            Log.d(TAG, "positionOffset >= 1f");
            ViewHelper.setAlpha(cur, maxAlpha);
        }

    }

    @Override
    public void onPageScrollStateChanged(int arg0) {
        // TODO Auto-generated method stub

    }
 };



private MyLinearLayout getRootView(int position)
{
    MyLinearLayout ly;
    try {
        ly = (MyLinearLayout) 
                fm.findFragmentByTag(getFragmentTag(position))
                .getView().findViewById(R.id.root);
    } catch (Exception e) {
        // TODO Auto-generated catch block
        return null;
    }
    if(ly!=null)
        return ly;
    return null;
}

private String getFragmentTag(int position)
{
    return "android:switcher:" + MainActivity.pager.getId() + ":" + position;
}