RecyclerView加载不同布局

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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。

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<RecyclerView.ViewHolder>{    private List<Data> list;    private ArrayList<ItemEntity> jdList;    private Context context;    public MainListAdapter(List<Data> list,ArrayList<ItemEntity> 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。

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