RecyclerView添加点击事件 长按删除

RecyclerView添加点击事件 长按删除

1.适配器中添加点击方法

 public ViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {
        if (TYPE_ONE==i){
            View view=LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.item_list,null,false);
            final ViewHolder viewHolder=new ViewHolder(view);

            //添加点击事件
            view.setOnLongClickListener(new View.OnLongClickListener() {
                @Override
                public boolean onLongClick(View v) {
                    //获取view对应的位置
                    int position=viewHolder.getLayoutPosition();
                    if (longClickLisenter!=null){
                        //回调监听
                        longClickLisenter.onRecyclerViewItemLongClick(position);
                    }
                    return true;
                }
            });
            return viewHolder;

创建接口

 public interface OnRecyclerViewItemLongClickLisenter {
        void onRecyclerViewItemLongClick(int position);
    }

    private OnRecyclerViewItemLongClickLisenter longClickLisenter;

    public void setOnRecyclerViewItemLongClickLisenter(OnRecyclerViewItemLongClickLisenter longClickLisenter) {
        this.longClickLisenter = longClickLisenter;
    }

定义删除方法

 public void removeItem(int position){
        result.remove(position);
        notifyDataSetChanged();
    }

2.主页面为适配器设置点击事件调用适配器中删除方法

 @Override
    public void getViewData(String json) {
        if (json!=null){
            Gson gson=new Gson();
            JsonBean jsonBean = gson.fromJson(json, JsonBean.class);
            List<JsonBean.ResultBean.PzshBean.CommodityListBeanX> list = jsonBean.getResult().getPzsh().getCommodityList();
            final MyAdapter adapter=new MyAdapter(getContext(),list);
            recyclerView.setAdapter(adapter);

            adapter.setOnRecyclerViewItemLongClickLisenter(new MyAdapter.OnRecyclerViewItemLongClickLisenter() {
                @Override
                public void onRecyclerViewItemLongClick(int position) {
                    Toast.makeText(getActivity(), "删除成功" + position", Toast.LENGTH_SHORT).show();
                    adapter.removeItem(position);
                }
            });
        }
    }