RecyclerView 使用_databing使用recyclerview-优快云博客

本文详细介绍了在Android应用中使用RecyclerView组件时，如何初始化和设置适配器，包括创建列表项数据结构、定义适配器类、设置点击监听器、添加分割线装饰以及配置LinearLayoutManager。

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private List<ItemBean> mAlertViewItems;
private AlertViewAdapter mAlertViewAdapter;
private RecyclerView bottom_rv_content;

private void initView() {
	bottom_rv_content = view.findViewById(R.id.rv_content);
    mAlertViewItems = new ArrayList();
    mAlertViewAdapter = new AlertViewAdapter(context, mAlertViewItems);
    bottom_rv_content.setAdapter(mAlertViewAdapter);
    LinearLayoutManager layoutManager = new LinearLayoutManager(context, LinearLayoutManager.VERTICAL, false);
    DividerItemDecoration dec = new DividerItemDecoration(context, DividerItemDecoration.VERTICAL);
    Drawable drawable = ContextCompat.getDrawable(context, R.drawable.alert_line);
    dec.setDrawable(drawable);
    bottom_rv_content.addItemDecoration(dec);
    bottom_rv_content.setLayoutManager(layoutManager);
}

public class AlertViewAdapter extends RecyclerView.Adapter<AlertViewAdapter.ViewHolder> {

    private List<ItemBean> mAlertViewItems;
    private Context mContext;
    private AlertViewAdapter.OnItemClickListener mOnItemClickListener;

    public AlertViewAdapter(Context context, List<ItemBean> alertViewItems) {
        this.mContext = context;
        this.mAlertViewItems = alertViewItems;
    }

    public interface OnItemClickListener {
        void onItemClick(View view, int position);
    }

    public void setOnItemClickLitener(AlertViewAdapter.OnItemClickListener onItemClickListener) {
        this.mOnItemClickListener = onItemClickListener;
    }

    @Override
    public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(mContext).inflate(R.layout.item_alert_view_bottom, parent,false);
        return new ViewHolder(view);
    }

    @Override
    public void onBindViewHolder(@NonNull final ViewHolder holder, int position) {
        if (mOnItemClickListener != null) {
            holder.itemView.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    int pos = holder.getLayoutPosition();
                    mOnItemClickListener.onItemClick(holder.itemView, pos);
                }
            });
        }
        ItemBean bean = mAlertViewItems.get(position);
     	holder.tv_text.setBackground(ContextCompat.getDrawable(mContext,R.drawable.alertdialog_bottom_single2_selector));
        holder.tv_text.setText(bean.name);
    }

    @Override
    public int getItemCount() {
        return mAlertViewItems.size();
    }

    class ViewHolder extends RecyclerView.ViewHolder {

        private final TextView tv_text;

        ViewHolder(View itemView) {
            super(itemView);
            tv_text = itemView.findViewById(R.id.tv_text);
        }
    }
}