androidx.recyclerview.widget.RecyclerView#addOnItemTouchListener ( )源码实例Demo

private void initRecyclerView(View contentView) {
    mRecyclerView = (RecyclerView) contentView.findViewById(R.id.galleries);
    // use this setting to improve performance if you know that changes
    // in content do not change the layout size of the RecyclerView
    mRecyclerView.setHasFixedSize(true);
    mRecyclerView.addOnItemTouchListener(
            new RecyclerItemClickListener(getActivity()) {
                @Override
                public void onItemClick(RecyclerView.ViewHolder holder, int position) {
                    showDetailFragment((GalleryViewHolder) holder,
                            mGalleries.get(position));
                }
            });
    final int itemMargin = getResources().getDimensionPixelSize(R.dimen.grid_single);
    mRecyclerView.addItemDecoration(new GalleryDivider(itemMargin));
}
 

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
    Bundle savedInstanceState) {
  final LayoutManagerType layoutManagerType = (LayoutManagerType) getArguments()
      .getSerializable(KEY_EXTRA_LAYOUT_MANAGER_TYPE);

  final View view = inflater
      .inflate(layoutManagerType.getLayoutId(), container, false);

  selectedItemView = (TextView) view.findViewById(layoutManagerType.getSelectedItemId());
  recyclerView = (RecyclerView) view.findViewById(layoutManagerType.getRVId());
  recyclerView.addItemDecoration(new DividerItemDecoration(getActivity(),
      DividerItemDecoration.VERTICAL_LIST));
  recyclerView.setHasFixedSize(true);
  recyclerView.addOnItemTouchListener(this);
  gestureDetector = new GestureDetectorCompat(getActivity(), new ItemTouchGestureDetector());
  layoutManager = getLayoutManager(layoutManagerType);
  recyclerView.setLayoutManager(layoutManager);

  // Specify an adapter which displays items
  List<String> items = makeItems();
  adapter = ItemListAdapter.newItemListAdapter(items, inflater);
  recyclerView.setAdapter(adapter);
  return view;
}
 

public void initRecyclerView(final Activity mContext, RecyclerView mRecyclerViewDrawer, List<DrawerEntity> list) {
    final BaseQuickAdapter mAdapterDrawer = new DrawerAdapter(mContext);
    mRecyclerViewDrawer.setLayoutManager(new LinearLayoutManager(mContext));
    mRecyclerViewDrawer.setAdapter(mAdapterDrawer);
    mRecyclerViewDrawer.addOnItemTouchListener(new OnItemClickListener() {
        @Override
        public void onSimpleItemClick(BaseQuickAdapter adapter, View view, int position) {
            DrawerEntity entity = (DrawerEntity) mAdapterDrawer.getItem(position);
            WebViewActivity.start(mContext,entity.url);
        }
    });
    mAdapterDrawer.setNewData(list);
}
 

@Override
protected void setAdapterAndDecor(@NonNull RecyclerView list) {
    final StickyTestAdapter adapter = new StickyTestAdapter(requireContext());
    decor = new StickyHeaderDecoration(adapter);
    setHasOptionsMenu(true);

    list.setAdapter(adapter);
    list.addItemDecoration(decor, 1);
    list.addOnItemTouchListener(this);
}
 

@Override
protected void setAdapterAndDecor(@NonNull RecyclerView list) {
    final InlineDoubleHeaderTestAdapter adapter = new InlineDoubleHeaderTestAdapter(requireContext());
    decor = new DoubleHeaderDecoration(adapter, true);
    setHasOptionsMenu(true);

    list.setAdapter(adapter);
    list.addItemDecoration(decor, 1);
    list.addOnItemTouchListener(this);
}
 

@Override
protected void setAdapterAndDecor(@NonNull RecyclerView recyclerView) {
    final DoubleHeaderTestAdapter adapter = new DoubleHeaderTestAdapter(requireContext());
    decor = new DoubleHeaderDecoration(adapter);
    setHasOptionsMenu(true);

    recyclerView.setAdapter(adapter);
    recyclerView.addItemDecoration(decor, 1);
    recyclerView.addOnItemTouchListener(this);
}
 

void attachToRecyclerView(@NonNull RecyclerView recyclerView) {
  recyclerView.addOnItemTouchListener(itemTouchListener);
  new ItemTouchHelper(this).attachToRecyclerView(recyclerView);
}
 

private ItemClickSupport(RecyclerView recyclerView) {
    mRecyclerView = recyclerView;

    mTouchListener = new TouchListener(recyclerView);
    recyclerView.addOnItemTouchListener(mTouchListener);
}