RecyclerView的基本使用

来源：互联网发布：form表单转换成json 编辑：程序博客网时间：2024/06/04 17:41
新建MessageAdapter类继承RecyclerView.Adapter。
public class MessageAdapter extends RecyclerView.Adapter<MessageHolder> {    private int RESOURCE_ID = R.layout.app_list_item_message;    private List<Message> dataList = new ArrayList<>();    private Context context;    @Override    public MessageHolder onCreateViewHolder(ViewGroup parent, int viewType) {        context = parent.getContext();        View rootView = View.inflate(context, RESOURCE_ID, null);        return new MessageHolder(rootView, onItemClickListener);    }    @Override    public void onBindViewHolder(MessageHolder holder, int position) {        holder.setData(context, dataList.get(position));    }    @Override    public int getItemCount() {        return dataList.size();    }        public void addAll(List<Message> dataList) {        this.dataList.addAll(dataList);        notifyDataSetChanged();    }    public void clear() {        this.dataList.clear();        notifyDataSetChanged();    }    public List<Message> getAll() {        return this.dataList;    }    OnMsgItemClickListener onItemClickListener;    public void setOnItemClickListener(OnMsgItemClickListener onItemClickListener) {        this.onItemClickListener = onItemClickListener;    }    public interface OnMsgItemClickListener {        void onItemClick(View view, Message message);    }}class MessageHolder extends RecyclerView.ViewHolder {    private MessageAdapter.OnMsgItemClickListener onItemClickListener;    private TextView tv_title;    private TextView tv_content;    private TextView tv_time;    private LinearLayout ll;    MessageHolder(View itemView, MessageAdapter.OnMsgItemClickListener onItemClickListener) {        super(itemView);        this.onItemClickListener = onItemClickListener;        tv_title = (TextView) itemView.findViewById(R.id.tv_title);        tv_time = (TextView) itemView.findViewById(R.id.tv_time);        tv_content = (TextView) itemView.findViewById(R.id.tv_content);        ll = (LinearLayout) itemView.findViewById(R.id.ll);    }    public void setData(final Context context, final Message message) {        if (message == null) {            return;        }        tv_title.setText(message.msgTitle);        tv_time.setText(DateTimeUtils.parseDatetime(message.createTime));        tv_content.setText(message.msgContent);        ll.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                if (onItemClickListener != null) {                    onItemClickListener.onItemClick(v, message);                }            }        });    }}
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