RecyclerView实现查看更多及收起-创新互联
本文实例为大家分享了RecyclerView实现查看更多及收起的具体代码,供大家参考,具体内容如下
10年积累的网站设计制作、成都网站制作经验,可以快速应对客户对网站的新想法和需求。提供各种问题对应的解决方案。让选择我们的客户得到更好、更有力的网络服务。我虽然不认识你,你也不认识我。但先网站设计后付款的网站建设流程,更有兴海免费网站建设让你可以放心的选择与我们合作。三个list:
realList 真实list
hideList 隐藏时的list
openList 展开时的list
做法就是
判断适配器条目小于4(可任意)时,将适配器list设置为真实list
判断适配器条目大于4(可任意)时,将适配器hideList设置为真实list的前三个条目+查看更多;将适配器openList设置为真实list+收起
适配器代码
public class LuckyCodeAdapter extends RecyclerView.Adapter{ private Context context; private List list; private boolean isHide;//隐藏 private boolean isOpen;//展开 public LuckyCodeAdapter(Context context) { this.context = context; } @Override public LuckyCodeViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { View v = LayoutInflater.from(context).inflate(R.layout.item_tosanpup_lucky_code, parent, false); return new LuckyCodeViewHolder(v); } @Override public void onBindViewHolder(LuckyCodeViewHolder holder, final int position) { holder.txtLuckyCode.setText(list.get(position)); if (hideOrShowCallBack != null) { holder.txtLuckyCode.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { if (position == list.size() - 1) { if (isOpen) { hideOrShowCallBack.hide(); return; } if (isHide) { hideOrShowCallBack.open(); return; } } } }); } } @Override public int getItemCount() { return list == null ? 0 : list.size(); } //隐藏 public void setHideList(List newList) { this.list = newList; notifyDataSetChanged(); this.isHide = true; this.isOpen = false; } //展开 public void setOpenList(List openList) { this.list = openList; this.isOpen = true; this.isHide = false; notifyDataSetChanged(); } //不需要隐藏/展开 public void setRealList(List realList) { this.list = realList; notifyDataSetChanged(); this.isHide = false; this.isOpen = false; } //清除数据 public void clearData() { if (list != null) { this.list.clear(); notifyDataSetChanged(); } } class LuckyCodeViewHolder extends RecyclerView.ViewHolder { TextView txtLuckyCode;//幸运号码 public LuckyCodeViewHolder(View itemView) { super(itemView); txtLuckyCode = (TextView) itemView; } } private HideOrShowCallBack hideOrShowCallBack; public void setHideOrShowCallBack(HideOrShowCallBack hideOrShowCallBack) { this.hideOrShowCallBack = hideOrShowCallBack; } public interface HideOrShowCallBack { void hide(); void open(); } }
文章名称:RecyclerView实现查看更多及收起-创新互联
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