新网创想网站建设,新征程启航
为企业提供网站建设、域名注册、服务器等服务
当RecyclerView有下拉刷新时,有时候设计图上,体现出来的列表有头部布局,这可以通过Adapter实现加载多套布局就可以,这里以加载两种布局为例说明。
创新互联主营龙安网站建设的网络公司,主营网站建设方案,成都app软件开发,龙安h5微信小程序搭建,龙安网站营销推广欢迎龙安等地区企业咨询
先看看Adapter的代码:
import android.annotation.SuppressLint; import android.content.Context; import android.support.v7.widget.RecyclerView; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.BaseAdapter; import com.alvin.R; import java.util.ArrayList; import java.util.List; public class MainListAdapter extends RecyclerView.Adapter{ private List list; private ArrayList jdList; private Context context; public MainListAdapter(List list,ArrayList jdList, Context context) { this.list = list; this.jdList = jdList; this.context = context; } @Override public int getItemViewType(int position) { return list.get(position).getShowType(); } @Override public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { if(viewType==1){ View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.layout_header_main_list,parent,false); return new HeaderHolder(view); }else{ View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_list_main,parent,false); return new ViewHolderItem(view); } } @Override public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) { if(holder instanceof HeaderHolder){ final HeaderHolder headerHolder = (HeaderHolder) holder; //TODO 实现相关逻辑 }else if(holder instanceof ViewHolderItem){ } } @Override public int getItemCount() { return list.size(); } private class HeaderHolder extends RecyclerView.ViewHolder{ HeaderHolder(View itemView) { super(itemView); } } private class ViewHolderItem extends RecyclerView.ViewHolder{ ViewHolderItem(View itemView) { super(itemView); } } }
getItemViewType()这个返回的是列表当前布局类型,在Adapter加载布局时,对齐进行判断,也就是onBindViewHolder()方法中进行相应的判断逻辑实现。
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持创新互联。