I had a problem in offset scrolling, I want when I scroll up, I'll get the next up item and the same for down items. I display every item in the middle view so I get the offset like the height of the view, but when I scroll it gives me last item or the first item. I tried scrollTo() and the same problem
I did this but it's not working.
public void fillFormules(List<Category> objectsTextToShow)
{
MyRecyclerAdapter adapter;
final LinearLayout layoutItemDetail = (LinearLayout) view.findViewById(R.id.middle);
LinearLayout relativeLayout = (LinearLayout) view.findViewById(R.id.titles);
// Initialize recycler view
for (int j = 0; j <objectsTextToShow.size() ; j++) {
LinearLayout parentLayout = new LinearLayout(getActivity());
parentLayout.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT, (float) 1.0));
parentLayout.setOrientation(LinearLayout.HORIZONTAL);
RecyclerView mRecyclerView = new RecyclerView(getActivity()); //(RecyclerView) view.findViewById(R.id.recycler_view);
List<Item> items = new ArrayList<Item>();
TextView textCat = new TextView(getActivity());
textCat.setText(Check.Languages(objectsTextToShow.get(j).getName(), LANGUAGE_ID));
textCat.setTextSize(28);
textCat.setLayoutParams(new TableLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT, 1f));
textCat.setTextColor(colorUtils.TITLE);
textCat.setGravity(Gravity.CENTER);
relativeLayout.addView(textCat);
textCat.setBackgroundColor(colorUtils.backgroundColor);
for (int i = 0; i <objectsTextToShow.get(j).getItems().size() ; i++) {
items.add(objectsTextToShow.get(j).getItems().get(i));
}
final LinearLayoutManager manager = new LinearLayoutManager(getActivity());
manager.setOrientation(LinearLayoutManager.VERTICAL);
mRecyclerView.setLayoutManager(manager);
adapter = new MyRecyclerAdapter(getActivity(), items);
mRecyclerView.setAdapter(adapter);
parentLayout.addView(mRecyclerView);
layoutItemDetail.addView(parentLayout);
mRecyclerView.setOnScrollListener(new RecyclerView.OnScrollListener() {
@Override
public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
super.onScrolled(recyclerView, dx, dy);
final int Height = layoutItemDetail.getHeight();
if(dy > 0)
{
Log.e("RecyclerView scrolled: ", "scroll up!"+Height);
recyclerView.smoothScrollToPosition(Height);
}
else
{
recyclerView.smoothScrollToPosition(-Height);
Log.e("RecyclerView scrolled: ", "scroll down!"+-Height);
}
}
});
}
}
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