40.我的订单（使用NineGrilView，显示九宫格图片）

我们在编写我的订单的时候会，运用到recyclerview来显示商品图片，但是这个需要在recyclerview中再嵌套recyclerview，使用很不方便，所以我们这里使用了NineGirdView

使用地址;https://github.com/w4lle/NineGridView

1.首先添加依赖

compile 'com.w4lle.library:NineLayout:1.0.0'

2.布局文件中使用控件

   <com.w4lle.library.NineGridlayout            android:layout_marginTop="8dp"            android:id="@+id/iv_ngrid_layout"            android:layout_height="wrap_content"            android:layout_width="match_parent" />

3.在adapter中使用ninegridlayout：
我们将ninegridlayout写在父类的adapter中，传入的数据时list<ShoppingCart> list，将这个list中的数据放入到九宫格中，然后在viewholder中实例化ninegridlayout对象,然后在父类的adapter中使用

package zuo.com.ui.adapter;import android.content.Context;import android.graphics.Color;import android.graphics.drawable.ColorDrawable;import android.media.Image;import android.net.Uri;import android.support.v7.widget.RecyclerView;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.Button;import android.widget.ImageView;import android.widget.TextView;import android.widget.Toast;import com.facebook.drawee.backends.pipeline.Fresco;import com.facebook.drawee.backends.pipeline.PipelineDraweeController;import com.facebook.drawee.view.SimpleDraweeView;import com.facebook.imagepipeline.request.ImageRequest;import com.facebook.imagepipeline.request.ImageRequestBuilder;import com.squareup.picasso.Picasso;import com.w4lle.library.NineGridAdapter;import com.w4lle.library.NineGridlayout;import java.util.ArrayList;import java.util.List;import zuo.com.ui.R;import zuo.com.ui.bean.OrderBean;import zuo.com.ui.bean.ShoppingCart;import zuo.com.ui.fragment.CartFragment;/** * Created by Administrator on 2016/11/8. */public class MyOrderAdapter extends RecyclerView.Adapter<MyOrderAdapter.ViewHolder> {    private LayoutInflater layoutInflater;    private List<OrderBean> list=new ArrayList<>();    private List<OrderBean> lists=new ArrayList<>();    private Context context;    public MyOrderAdapter(List<OrderBean> list, List<OrderBean> lists,Context context){        this.list=list;        this.lists=lists;        this.context=context;    }    @Override    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {        layoutInflater=LayoutInflater.from(parent.getContext());        View view=layoutInflater.inflate(R.layout.item_my_order,parent,false);        return new ViewHolder(view);    }    @Override    public void onBindViewHolder(final ViewHolder holder, final int position) {       holder.textView.setText(list.get(position).getPrice());        holder.nTextView.setText("订单编号:"+"413116905"+position);//           Uri uri = Uri.parse(list.get(position).getList().get(0).getImgUrl());//           ImageRequest request = ImageRequestBuilder.newBuilderWithSource(uri)//                   .setProgressiveRenderingEnabled(true)//                   .build();//           PipelineDraweeController controller = (PipelineDraweeController) Fresco.newDraweeControllerBuilder()//                   .setImageRequest(request)//                   .build();//           holder.simpleDraweeView.setController(controller);        //        holder.nineGridlayout.setAdapter(new Adapter(context,list.get(position).getList()));        holder.button.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {//                HotGoodsAdapter.hashMap.get("123").add(list.get(position).getList());                HotGoodsAdapter.hashMap.put("123", lists.get(position).getList());                HotGoodsAdapter.hashMap.put("456", lists.get(position).getList());                HotGoodsAdapter.hashMap.put("789", lists.get(position).getList());//                HotGoodsAdapter.hashMap.get("123").subList(0,1);//                HotGoodsAdapter.hashMap.get("123").subList(0,1);                //  CartFragment.carts=list.get(position).getList();                Toast.makeText(context, "成功添加到购物车", Toast.LENGTH_SHORT).show();                //     holder.nineGridlayout.setAdapter(new Adapter(context,list.get(position).getList()));            }        });    }    @Override    public int getItemCount() {        return list.size();    }    class ViewHolder extends RecyclerView.ViewHolder{        private TextView textView,nTextView;//        private SimpleDraweeView simpleDraweeView;       private NineGridlayout nineGridlayout;        private Button button;        public ViewHolder(View itemView) {            super(itemView);            nTextView= (TextView) itemView.findViewById(R.id.number_text_view);            textView= (TextView) itemView.findViewById(R.id.text_view_price);       //     simpleDraweeView= (SimpleDraweeView) itemView.findViewById(R.id.drawee_view);            nineGridlayout= (NineGridlayout) itemView.findViewById(R.id.iv_ngrid_layout);            button= (Button) itemView.findViewById(R.id.button_buy_again);        }    }************************************************************************************************************    class Adapter extends NineGridAdapter {        private List<ShoppingCart> lists;        public Adapter(Context context, List<ShoppingCart> lists) {            super(context, lists);            this.lists=lists;        }        @Override        public int getCount() {            return (lists == null) ? 0 : lists.size();        }        @Override        public String getUrl(int position) {            ShoppingCart shoppingCart=lists.get(position);            return shoppingCart.getImgUrl();        }        @Override        public ShoppingCart getItem(int position) {            return (lists == null) ? null : lists.get(position);        }        @Override        public long getItemId(int position) {            ShoppingCart shoppingCart=lists.get(position);            return shoppingCart==null?0:shoppingCart.getId();        }        @Override        public View getView(int i, View view) {            ImageView iv = new ImageView(context);            iv.setScaleType(ImageView.ScaleType.CENTER_CROP);            iv.setBackgroundColor(Color.parseColor("#f5f5f5"));            Picasso.with(context).load(getUrl(i)).placeholder(new ColorDrawable(Color.parseColor("#f5f5f5"))).into(iv);            return iv;        }    }}

4.就能实现效果：