thanks @bleeding182 for the cool example and proof of concept. regarding LinePagerIndicatorDecoration it works great except when screen changed to R2L it still start from left to right. I will try to fix it and send PR.

Firstly, thanks for the code. Finally, find a solution to display Indicators to RecyclerView.

Coming to the problem, everything is working fine as illustrated. However, the indicator is displayed at the bottom of the RecyclerView by offsetting the Item. How can I display the Indicator without offsetting the Item (I mean, how to display Indicator above/overlapping the RecyclerView item)

Image Reference illustrating the issue

A little help would be appreciated. Thanks again for the awesome solution.

PS: I am a beginner in Android. Hence no idea about how to develop libraries. If possible, please create a library for this RecyclerView Indicator. Would be helpful to many.

Thanks.

Hi, first thanks for the great samples.

I tried your header decorator in my application, it has a tab layout and inside the tab layout there's a fragment. I'm using the header layout in the recycler view in that fragment. The problem is that when the fragment is first created the item isn't decorated, but after scrolling down and back up again the header is shown. Maybe you can shed some light why that happening.

Here's the attached gif

Here's the code, the initRecyclerView is called from Fragment.onCreateView(). Thanks for the help

``
private void initRecyclerView(View v) { recyclerView = (RecyclerView) v.findViewById(R.id.recyclerview);

    // use this setting to improve performance if you know that changes
    // in content do not change the layout size of the RecyclerView
    recyclerView.setHasFixedSize(true);

    recyclerView.addItemDecoration(new DividerItemDecoration(getContext(), DividerItemDecoration.VERTICAL_LIST));

    // use a linear layout manager
    recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));

    recyclerView.addOnItemTouchListener(new RecyclerItemClickListener(getActivity().getApplicationContext(), new RecyclerItemClickListener.OnItemClickListener() {
        @Override
        public void onItemClick(View view, int position) {
            Trayek trayek = adapter.getItem(position);

            if(trayek != null) {
                Intent intent = new Intent(getActivity().getApplicationContext(), AngkotRouteActivity.class);
                intent.putExtra("bus_code", trayek.getVehicleNo());
                intent.putExtra("bus_name", trayek.getVehicleName());
                intent.putExtra("id_trayek", trayek.getId());
                startActivity(intent);

            }
        }
    }));

    recyclerView.addItemDecoration(HeaderDecoration.with(recyclerView)
            .inflate(R.layout.header_damri)
            .parallax(1f)
            .dropShadowDp(4)
            .build());
}

``

If I try to inflate a simple LinearLayout with 2 children and their relative weight, these are not respected and the children are drawn on the far left of the layout.

I can't find a solution to this.

I used display 3 cards at the same time on RecyclerView, but I always encounter extra highlight "tail" indicator even if I already moved to next card. After some debugging, I modify the progress variable in LinePagerIndicatorDecoration.java.

` // on swipe the active item will be positioned from [-width, 0] // interpolate offset for smooth animation float progress = mInterpolator.getInterpolation(left * -1 / (float) width);

   // extra "rounding"
    if(progress < 0.02) {
        progress = 0;
    } else if (progress > 0.98) {
        // rounding, avoid extra highlighted part
        progress = 0;
        activePosition++;
    }

` FYI.

https://raw.githubusercontent.com/ogaclejapan/SmartTabLayout/master/art/demo4.gif i want achieve this kind of effect in my recycler view is there any i can use the given code to achieve this. I have two recycler view, whenever i scroll 10 items in one recycler view it scroll another recycler view to one next position thats where i want to use this. Any help would be appreciated