recycleview+okhttp

最新推荐文章于 2022-08-12 20:16:17 发布

Black_orwhite

最新推荐文章于 2022-08-12 20:16:17 发布

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本文链接：https://blog.youkuaiyun.com/Black_orwhite/article/details/78283689

本文档将指导您如何在Android项目中整合RecycleView与OkHttp。首先，我们需要在项目中添加相应的依赖。接着，我们将介绍如何配置和使用这两个库来实现数据加载和显示。

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第一步添加依赖

compile 'com.squareup.okhttp3:okhttp:3.9.0'

compile 'com.jcodecraeer:xrecyclerview:1.3.2'

第二步布局

<com.jcodecraeer.xrecyclerview.XRecyclerView

    android:id="@+id/rv"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_margin="10dp"
    />

条目布局
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"

    android:layout_width="match_parent"
    android:layout_height="match_parent">
    <LinearLayout
        android:layout_width="match_parent"
        android:orientation="horizontal"
        android:layout_height="100dp"
        >
        <ImageView
            android:layout_width="100dp"
            android:layout_height="100dp"
            android:id="@+id/rv_item_img"
            />
        <TextView
            android:layout_width="match_parent"
            android:layout_height="100dp"
            android:id="@+id/rv_item_txt1"
            android:gravity="center"
          android:textSize="20sp"
            android:textColor="#f00"
            />
    </LinearLayout>
    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/rv_item_txt"
        />
</LinearLayout>
第三步添加代码

public interface NetDataCallBack<T> {
    void success(T t);
    void faild(int positon, String str);

}
public class OkHttpUtils {
     private NetDataCallBack netDataCallback;
               private Handler mhand=new Handler();
               public <T> void getdata(String url, final NetDataCallBack netDataCallback, final Class<T> tclass) {
                   //初始化一个 OkHttpClient 并且设置连接和读取超时时间
                   OkHttpClient okhttp = new OkHttpClient.Builder()
                           .connectTimeout(10, TimeUnit.SECONDS)
                           .readTimeout(20, TimeUnit.SECONDS)
                           .build();
                   //构造一个Request对象
                   Request request = new Request.Builder().url(url).build();
                   //通过request的对象去构造得到一个Call对象
                   Call call = okhttp.newCall(request);
                   call.enqueue(new Callback() {
                       @Override
                       public void onFailure(Call call, IOException e) {
                           netDataCallback.faild(499,e.getMessage());
                       }

                       @Override
                       public void onResponse(Call call, Response response) throws IOException {
                           String string = response.body().string();

                           Gson gson=new Gson();
                           T t = gson.fromJson(string, tclass);
                           final Message msg = Message.obtain();
                           msg.what=ok;
                           msg.obj=t;
                           mhand.post(new Runnable() {
                               @Override
                               public void run() {
                                   netDataCallback.success(msg.obj);
                               }
                           });

                       }
                   });

               }

               //post请求
               public <T>void getLoadDataPost(String url, final NetDataCallBack netDataCallback, final Class<T> tClass, RequestBody body){
                   this.netDataCallback = netDataCallback;
                   OkHttpClient okHttpClient = new OkHttpClient.Builder()
                           .readTimeout(20, TimeUnit.SECONDS)
                           .connectTimeout(10, TimeUnit.SECONDS)
                           .build();
                   final Request request = new Request.Builder().url(url).post(body).build();
                   Call call = okHttpClient.newCall(request);
                   call.enqueue(new Callback() {
                       @Override
                       public void onFailure(Call call, IOException e) {
                           netDataCallback.faild(499,e.getMessage());
                       }

                       @Override
                       public void onResponse(Call call, Response response) throws IOException {
                           T t = new Gson().fromJson(response.body().string(), tClass);
                           final Message msg = Message.obtain();
                           msg.what = OK;
                           msg.obj = t;
                           mhand.post(new Runnable() {
                               @Override
                               public void run() {
                                   netDataCallback.success(msg.obj);

                               }
                           });
                       }
                   });
               }
}
适配器
public class MyRvAdapter extends RecyclerView.Adapter<MyRvAdapter.Viewholder>{
    private Context context;
    private List<ProductBean.DatasBean.GoodsListBean> list = new ArrayList<>();

    public MyRvAdapter(Context context, List<ProductBean.DatasBean.GoodsListBean> list) {
        this.context = context;
        this.list = list;
    }

    @Override
    public Viewholder onCreateViewHolder(ViewGroup parent, int viewType) {
       View view= LayoutInflater.from(context).inflate(R.layout.rv_item,parent,false);
        return new Viewholder(view);
    }

    @Override
    public void onBindViewHolder(Viewholder holder, int position) {
       // String pic=list.get(position).getGoods_image_url();
       // String[] split=pic.split("\\|");
        Glide.with(context).load(list.get(position).getGoods_image_url()).error(R.mipmap.ic_launcher).into(holder.img);
        holder.tv1.setText(list.get(position).getGoods_name()+"");
        holder.tv2.setText(list.get(position).getGoods_price()+"");
        holder.itemView.setTag(position);
        holder.itemView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                if (setitemClick!=null){
                    setitemClick.setitemClick(view, (Integer) view.getTag());
                }
            }
        });
    }

    @Override
    public int getItemCount() {
        return list == null ? 0:list.size();
    }

    class Viewholder extends RecyclerView.ViewHolder{
        ImageView img;
        TextView tv1;
        TextView tv2;
        public Viewholder(View itemView) {
            super(itemView);
            img = (ImageView)itemView.findViewById(R.id.rv_item_img);
            tv1 = (TextView)itemView.findViewById(R.id.rv_item_txt);
            tv2= (TextView)  itemView.findViewById(R.id.rv_item_txt1);
        }
    }
    public interface SetitemClick{
        View setitemClick(View view,int position);
    }
    SetitemClick setitemClick;
    public void setSetitemClick(SetitemClick setitemClick){
        this.setitemClick=setitemClick;
    }
}
fragment

public class FragmentOne extends Fragment implements XRecyclerView.LoadingListener{
   
    private String t_path="http://169.254.194.252/mobile/index.php?act=goods&op=goods_list&page=100";
    private List<ProductBean.DatasBean.GoodsListBean> list=new ArrayList<>();
    private View view;
    private MyRvAdapter adapter;
    private XRecyclerView rv;

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        view = inflater.inflate(R.layout.fragmentone,container,false);
        initview();
        sp();
        adapter.setSetitemClick(new MyRvAdapter.SetitemClick() {
            @Override
            public View setitemClick(View view, int position) {
                Intent intent = new Intent(getActivity(), SpxqActivity.class);
                startActivity(intent);
                return null;
            }
        });
        return view;
    }@Override
    public void onRefresh() {
        list.clear();
        sp();
        rv.refreshComplete();
    }

    @Override
    public void onLoadMore() {
        sp();
        rv.loadMoreComplete();
    }
    private void initview(){
        rv =(XRecyclerView) view.findViewById(R.id.rv);
        adapter=new MyRvAdapter(getActivity(),list);
        rv.setAdapter(adapter);
        StaggeredGridLayoutManager manager = new StaggeredGridLayoutManager(2,StaggeredGridLayoutManager.VERTICAL);
        rv.setLayoutManager(manager);
        rv.setLoadingListener(this);
    }
   
   private void sp(){
    OkHttpClient okHttpClient = new OkHttpClient();
    Request request=new Request.Builder().url(t_path).build();
    Call call=okHttpClient.newCall(request);
    call.enqueue(new Callback() {
        @Override
        public void onFailure(Call call, IOException e) {

        }
        @Override
        public void onResponse(Call call, Response response) throws IOException {
             if (response.body()!=null&&response.isSuccessful()){
                 String s=response.body().string();
                 Gson gson = new Gson();
                 ProductBean productBean = gson.fromJson(s, ProductBean.class);
                 list.addAll(productBean.getDatas().getGoods_list());
             }
        }
    });
}

}