RecyclerView有什麼優點以及和ListView有什麼區別就不多說了，今天來實現RecyclerView的不同item佈局效果，直接上圖：

       實現的思路是為資料新增一個type，根據type的值來判定getItemViewType返回的型別。getItemViewType(int position)返回的值就是onCreateViewHolder(ViewGroup parent, int viewType)的引數viewType，所以根據不同的值載入不同的佈局。程式碼如下：

public class MyAdapter extends RecyclerView.Adapter
 
<RecyclerView.ViewHolder>{
public static enum ITEM_TYPE{
ITEM_TYPE_LEFT,
ITEM_TYPE_RIGHT;
}
private LayoutInflater layoutInflater;
private Context context;
private List<Content> contents;
public MyAdapter(Context c, List<Content> strs){
layoutInflater = LayoutInflater.from(c);
context 
 
= c;
contents = strs;
}
@Override
public int getItemCount() {
return contents != null ? contents.size() : 0;
}
@Override
public int getItemViewType(int position) {
return contents.get(position).getType() == 0 ? ITEM_TYPE.ITEM_TYPE_LEFT.ordinal() : ITEM_TYPE.ITEM_TYPE_RIGHT.ordinal() ;
}
@Override
public 
 
RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
if(viewType == ITEM_TYPE.ITEM_TYPE_LEFT.ordinal()){
return new LeftViewHolder(layoutInflater.inflate(R.layout.item_text_left,parent,false));
}else{
return new RightViewHolder(layoutInflater.inflate(R.layout.item_text_right,parent,false));
}
    }
@Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
if(holder instanceof LeftViewHolder){
            ((LeftViewHolder) holder).tv_left.setText(contents.get(position).getMessage());
}else if(holder instanceof  RightViewHolder){
            ((RightViewHolder) holder).tv_right.setText(contents.get(position).getMessage());
}
    }
public static class LeftViewHolder extends RecyclerView.ViewHolder{
public TextView tv_left;
public LeftViewHolder(View v){
super(v);
tv_left = (TextView)v.findViewById(R.id.tv_left);
}
    }
public static class RightViewHolder extends RecyclerView.ViewHolder{
public TextView tv_right;
public RightViewHolder(View v){
super(v);
tv_right = (TextView)v.findViewById(R.id.tv_right);
}
    }
}