我就想在这个recycview中底部添加两个按钮
项目地址链接: https://pan.baidu.com/s/13EzJZ8CrRL6xRiFjUxJXqw 提取码: qjet
图片说明

public class CollectFragment extends Fragment {

    public RecyclerView mCollectRecyclerView;//定义RecyclerView
    //定义以goodsentity实体类为对象的数据集合
    private ArrayList<GoodsEntity> goodsEntityList = new ArrayList<GoodsEntity>();
    //自定义recyclerveiw的适配器
    private CollectRecycleAdapter mCollectRecyclerAdapter;



    private static ChangeFragment mChange;
    public static CollectFragment newInstance(ChangeFragment changeFragment) {
        mChange = changeFragment;
        Bundle args = new Bundle();

        CollectFragment fragment = new CollectFragment();
        fragment.setArguments(args);
        return fragment;
    }
    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        //获取fragment的layout
       View  view = inflater.inflate(R.layout.recyclerview, container, false);
        //对recycleview进行配置


        return view;
    }

    @Override
    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);
        initRecyclerView(view);
        //模拟数据
        initData();
    }

    /**
     * TODO 模拟数据
     */
    private void initData() {
        for (int i=0;i<10;i++){
            GoodsEntity goodsEntity=new GoodsEntity();
            goodsEntity.setGoodsName("模拟数据"+i);
            goodsEntity.setGoodsPrice("100"+i);
            goodsEntityList.add(goodsEntity);
        }
    }

    /**
     * TODO 对recycleview进行配置
     */

    private void initRecyclerView(View view) {
        //获取RecyclerView
        mCollectRecyclerView=view.findViewById(R.id.collect_recyclerView);
        //创建adapter
        mCollectRecyclerAdapter = new CollectRecycleAdapter(getActivity(), goodsEntityList);
        //给RecyclerView设置adapter
        mCollectRecyclerView.setAdapter(mCollectRecyclerAdapter);
        //设置layoutManager,可以设置显示效果，是线性布局、grid布局，还是瀑布流布局
        //参数是：上下文、列表方向（横向还是纵向）、是否倒叙
        mCollectRecyclerView.setLayoutManager(new LinearLayoutManager(getActivity(), LinearLayoutManager.VERTICAL, false));
        //设置item的分割线
        mCollectRecyclerView.addItemDecoration(new DividerItemDecoration(getActivity(),DividerItemDecoration.VERTICAL));
        //RecyclerView中没有item的监听事件，需要自己在适配器中写一个监听事件的接口。参数根据自定义
        mCollectRecyclerAdapter.setOnItemClickListener(new CollectRecycleAdapter.OnItemClickListener() {
            @Override
            public void OnItemClick(View view, GoodsEntity data) {
                //此处进行监听事件的业务处理
                Toast.makeText(getActivity(),"我是item",Toast.LENGTH_SHORT).show();
                mChange.changeAttractionsContent();
            }
        });
    }

}

public class CollectRecycleAdapter extends RecyclerView.Adapter<CollectRecycleAdapter.myViewHodler> {
    private Context context;
    private ArrayList<GoodsEntity> goodsEntityList;

    //创建构造函数
    public CollectRecycleAdapter(Context context, ArrayList<GoodsEntity> goodsEntityList) {
        //将传递过来的数据，赋值给本地变量
        this.context = context;//上下文
        this.goodsEntityList = goodsEntityList;//实体类数据ArrayList
    }

    /**
     * 创建viewhodler，相当于listview中getview中的创建view和viewhodler
     *
     * @param parent
     * @param viewType
     * @return
     */
    @Override
    public myViewHodler onCreateViewHolder(ViewGroup parent, int viewType) {
        //创建自定义布局

        View itemView = View.inflate(context, R.layout.item_content, null);

        return new myViewHodler(itemView);
    }

    /**
     * 绑定数据，数据与view绑定
     *
     * @param holder
     * @param position
     */
    @Override
    public void onBindViewHolder(myViewHodler holder, int position) {
        //根据点击位置绑定数据
        GoodsEntity data = goodsEntityList.get(position);
//        holder.mItemGoodsImg;
        holder.mItemGoodsName.setText(data.goodsName);//获取实体类中的name字段并设置
        holder.mItemGoodsPrice.setText(data.goodsPrice);//获取实体类中的price字段并设置

    }

    /**
     * 得到总条数
     *
     * @return
     */
    @Override
    public int getItemCount() {
        return goodsEntityList.size();
    }

    //自定义viewhodler
    class myViewHodler extends RecyclerView.ViewHolder {
        private ImageView mItemGoodsImg;
        private TextView mItemGoodsName;
        private TextView mItemGoodsPrice;

        public myViewHodler(View itemView) {
            super(itemView);
            mItemGoodsImg = itemView.findViewById(R.id.tx_news_simple_photos_01);
            mItemGoodsName =  itemView.findViewById(R.id.tx_news_simple_photos_title);
            mItemGoodsPrice =  itemView.findViewById(R.id.tx_news_simple_photos_time);

            //点击事件放在adapter中使用，也可以写个接口在activity中调用
            //方法一：在adapter中设置点击事件
            itemView.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    //可以选择直接在本位置直接写业务处理
                    //Toast.makeText(context,"点击了xxx",Toast.LENGTH_SHORT).show();
                    //此处回传点击监听事件
                    if(onItemClickListener!=null){
                        onItemClickListener.OnItemClick(v, goodsEntityList.get(getLayoutPosition()));
                    }
                }
            });

        }
    }

    /**
     * 设置item的监听事件的接口
     */
    public interface OnItemClickListener {
        /**
         * 接口中的点击每一项的实现方法，参数自己定义
         *
         * @param view 点击的item的视图
         * @param data 点击的item的数据
         */
        public void OnItemClick(View view, GoodsEntity data);
    }

    //需要外部访问，所以需要设置set方法，方便调用
    private OnItemClickListener onItemClickListener;

    public void setOnItemClickListener(OnItemClickListener onItemClickListener) {
        this.onItemClickListener = onItemClickListener;
    }
}

给动态加载的TextView设置同一个监听（参数传递进来的），获取View的id的时候都是-1

徐修杰

4个回复