上拉加载、下滑刷新

依赖

 //XRecyclerViewapi('com.jcodecraeer:xrecyclerview:1.5.9') {exclude group: 'com.android.support'}//picassoimplementation 'com.squareup.picasso:picasso:2.5.2'//okhttpimplementation 'com.squareup.okhttp3:okhttp:4.2.2'

bean类

         public class Food {/*** ret : 1* data : [{"id":"8289","title":"油焖大虾","pic":"http://www.qubaobei.com/ios/cf/uploadfile/132/9/8289.jpg","collect_num":"1669","food_str":"大虾 葱 生姜 植物油 料酒","num":1669},{"id":"2127","title":"四川回锅肉","pic":"http://www.qubaobei.com/ios/cf/uploadfile/132/3/2127.jpg","collect_num":"1591","food_str":"猪肉 青蒜 青椒 红椒 姜片","num":1591},{"id":"30630","title":"超简单芒果布丁","pic":"http://www.qubaobei.com/ios/cf/uploadfile/132/31/30630.jpg","collect_num":"1544","food_str":"QQ糖 牛奶 芒果","num":1544},{"id":"9073","title":"家常红烧鱼","pic":"http://www.qubaobei.com/ios/cf/uploadfile/132/10/9073.jpg","collect_num":"1425","food_str":"鲜鱼 姜 葱 蒜 花椒","num":1425},{"id":"10097","title":"家常煎豆腐","pic":"http://www.qubaobei.com/ios/cf/uploadfile/132/11/10097.jpg","collect_num":"1419","food_str":"豆腐 新鲜红椒 青椒 葱花 油","num":1419},{"id":"10509","title":"水煮肉片","pic":"http://www.qubaobei.com/ios/cf/uploadfile/132/11/10509.jpg","collect_num":"1341","food_str":"瘦猪肉 生菜 豆瓣酱 干辣椒 花椒","num":1341},{"id":"46968","title":"红糖苹果银耳汤","pic":"http://www.qubaobei.com/ios/cf/uploadfile/132/47/46968.jpg","collect_num":"1252","food_str":"银耳 苹果 红糖","num":1252},{"id":"10191","title":"麻婆豆腐","pic":"http://www.qubaobei.com/ios/cf/uploadfile/132/11/10191.jpg","collect_num":"1221","food_str":"豆腐 肉末 生抽 白糖 芝麻油","num":1221},{"id":"2372","title":"皮蛋瘦肉粥","pic":"http://www.qubaobei.com/ios/cf/uploadfile/132/3/2372.jpg","collect_num":"1151","food_str":"大米 皮蛋 猪肉 油条 香葱","num":1151},{"id":"2166","title":"蚂蚁上树","pic":"http://www.qubaobei.com/ios/cf/uploadfile/132/3/2166.jpg","collect_num":"1144","food_str":"红薯粉 肉 姜 蒜 花椒","num":1144},{"id":"2262","title":"糖醋肉","pic":"http://www.qubaobei.com/ios/cf/uploadfile/132/3/2262.jpg","collect_num":"1078","food_str":"猪肉 红椒 黄椒 洋葱 蛋清","num":1078},{"id":"9971","title":"鱼香豆腐","pic":"http://www.qubaobei.com/ios/cf/uploadfile/132/10/9971.jpg","collect_num":"1010","food_str":"豆腐 木耳 胡萝卜 香葱 番茄酱","num":1010},{"id":"10172","title":"干煸四季豆","pic":"http://www.qubaobei.com/ios/cf/uploadfile/132/11/10172.jpg","collect_num":"993","food_str":"四季豆 干辣椒 蒜头 酱油 糖","num":993},{"id":"2685","title":"胡萝卜肉末蒸蛋","pic":"http://www.qubaobei.com/ios/cf/uploadfile/132/3/2685.jpg","collect_num":"926","food_str":"胡萝卜 肉 蛋 生抽 盐","num":926},{"id":"9972","title":"虎皮青椒","pic":"http://www.qubaobei.com/ios/cf/uploadfile/132/10/9972.jpg","collect_num":"892","food_str":"青辣椒 大蒜 香醋 白糖 生抽","num":892},{"id":"10437","title":"叉烧排骨","pic":"http://www.qubaobei.com/ios/cf/uploadfile/132/11/10437.jpg","collect_num":"803","food_str":"排骨 李锦记叉烧酱 植物油 清水 油菜","num":803},{"id":"2892","title":"\u201c五行\u201d彩蔬汤","pic":"http://www.qubaobei.com/ios/cf/uploadfile/132/3/2892.jpg","collect_num":"760","food_str":"黑木耳 玉米 牛蒡 胡萝卜 西兰花","num":760},{"id":"2348","title":"麻辣肉丝面","pic":"http://www.qubaobei.com/ios/cf/uploadfile/132/3/2348.jpg","collect_num":"758","food_str":"面条 肉丝 淀粉 酱油 辣椒","num":758},{"id":"33783","title":"美人豆浆","pic":"http://www.qubaobei.com/ios/cf/uploadfile/132/34/33783.jpg","collect_num":"757","food_str":"黄豆 红豆 绿豆 黑豆 黑米","num":757},{"id":"10044","title":"土豆炖翅根","pic":"http://www.qubaobei.com/ios/cf/uploadfile/132/11/10044.jpg","collect_num":"756","food_str":"土豆 翅根 葱 姜 料酒","num":756}]*/private int ret;private List<DataBean> data;public int getRet() {return ret;}public void setRet(int ret) {this.ret = ret;}public List<DataBean> getData() {return data;}public void setData(List<DataBean> data) {this.data = data;}public static class DataBean {/*** id : 8289* title : 油焖大虾* pic : http://www.qubaobei.com/ios/cf/uploadfile/132/9/8289.jpg* collect_num : 1669* food_str : 大虾 葱 生姜 植物油 料酒* num : 1669*/private String id;private String title;private String pic;private String collect_num;private String food_str;private int num;public String getId() {return id;}public void setId(String id) {this.id = id;}public String getTitle() {return title;}public void setTitle(String title) {this.title = title;}public String getPic() {return pic;}public void setPic(String pic) {this.pic = pic;}public String getCollect_num() {return collect_num;}public void setCollect_num(String collect_num) {this.collect_num = collect_num;}public String getFood_str() {return food_str;}public void setFood_str(String food_str) {this.food_str = food_str;}public int getNum() {return num;}public void setNum(int num) {this.num = num;}}
}

布局文件

<LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"xmlns:app="http://schemas.android.com/apk/res-auto"xmlns:tools="http://schemas.android.com/tools"android:layout_width="match_parent"android:layout_height="match_parent"tools:context=".MainActivity"><com.jcodecraeer.xrecyclerview.XRecyclerViewandroid:id="@+id/xrv"android:layout_width="match_parent"android:layout_height="match_parent"></com.jcodecraeer.xrecyclerview.XRecyclerView></LinearLayout>

适配器代码

public class XrvAdapter extends RecyclerView.Adapter<XrvAdapter.MyViewHolder> {private List<Food.DataBean> dataBeans = new ArrayList<>();private Context context;public XrvAdapter(Context context) {this.context = context;}public void setData(List<Food.DataBean> newData){if (newData == null){return;}dataBeans.clear();dataBeans.addAll(newData);notifyDataSetChanged();}@NonNull@Overridepublic MyViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.xrv_item, parent, false);return new MyViewHolder(view);}@Overridepublic void onBindViewHolder(@NonNull MyViewHolder holder, int position) {Picasso.with(context).load(dataBeans.get(position).getPic()).into(holder.imageView);holder.textView.setText(dataBeans.get(position).getTitle());}@Overridepublic int getItemCount() {return dataBeans.size();}class MyViewHolder extends RecyclerView.ViewHolder{private ImageView imageView;private TextView textView;public MyViewHolder(@NonNull View itemView) {super(itemView);imageView = itemView.findViewById(R.id.show_iv);textView = itemView.findViewById(R.id.show_tv);}}}

activity实现

public class MainActivity extends AppCompatActivity {private XrvAdapter adapter;private XRecyclerView xrv;private List<Food.DataBean> dataBeans = new ArrayList<>();private int page = 1;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);initView();adapter = new XrvAdapter(MainActivity.this);xrv.setAdapter(adapter);adapter.setData(dataBeans);doget("http://www.qubaobei.com/ios/cf/dish_list.php?stage_id=1&limit=20&page=1");}public void doget(String url) {Request request = new Request.Builder().url(url).get().build();Call call = new OkHttpClient.Builder().build().newCall(request);call.enqueue(new Callback() {@Overridepublic void onFailure(@NotNull Call call, @NotNull IOException e) {}@Overridepublic void onResponse(@NotNull Call call, @NotNull Response response) throws IOException {try {JSONObject jsonObject = new JSONObject(response.body().string());JSONArray data = jsonObject.getJSONArray("data");for (int i = 0; i < data.length(); i++) {JSONObject jsonObject1 = data.getJSONObject(i);String title = jsonObject1.getString("title");String pic = jsonObject1.getString("pic");Food.DataBean dataBean = new Food.DataBean();dataBean.setPic(pic);dataBean.setTitle(title);dataBeans.add(dataBean);}runOnUiThread(new Runnable() {@Overridepublic void run() {adapter.setData(dataBeans);xrv.refreshComplete();}});} catch (Exception e) {e.printStackTrace();}}});}private void initView() {xrv = (XRecyclerView) findViewById(R.id.xrv);//设置布局风格xrv.setLayoutManager(new LinearLayoutManager(this));xrv.setLoadingMoreEnabled(true);xrv.setPullRefreshEnabled(true);xrv.setLoadingListener(new XRecyclerView.LoadingListener() {@Overridepublic void onRefresh() {page++;doget("http://www.qubaobei.com/ios/cf/dish_list.php?stage_id=1&limit=20&page="+page);}@Overridepublic void onLoadMore() {page++;doget("http://www.qubaobei.com/ios/cf/dish_list.php?stage_id=1&limit=20&page="+page);}});}
}

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XRecyclerView、Okhttp

XRecyclerView

上拉加载、下滑刷新

依赖

bean类

布局文件

适配器代码

activity实现

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