Android动态获取json解析后显示到RecyclerView

首先，需要进行获取以及解析的json数据；

{  "code": "200",  "tips": "ok",  "message": "success",  "devices": [    {      "deviceid": 1,      "userid": 3,      "username": "demo",      "devicename": "TPYBoard v202",      "deviceaddre": "5C:CF:7F:0D:85:65",      "addtime": 1436879777    },    {      "deviceid": 2,      "userid": 3,      "username": "demo",      "devicename": "MMP",      "deviceaddre": "a5:a9:a9:ac:a0:a6",      "addtime": 1848919392    }  ]}

首先需要了解json是什么类型的，然后再进行转换对象以及数组；
fragmten1.xml界面：

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical"    tools:context="com.example.rnd.jsonobjcet.MainActivity">    <LinearLayout        android:id="@+id/toolbar"        android:layout_width="match_parent"        android:layout_height="wrap_content">        <include layout="@layout/title_layout"/>    LinearLayout>    <android.support.v7.widget.RecyclerView        android:id="@+id/recy"        android:layout_width="match_parent"        android:layout_height="match_parent"        />LinearLayout>

再创建一个他的item动态布局：RecyclerView_item.xml,

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"><LinearLayout    android:layout_width="match_parent"    android:layout_height="100dp"    android:gravity="center"    >    <LinearLayout        android:layout_width="wrap_content"        android:layout_height="70dp"        android:paddingLeft="10dp"        android:orientation="vertical">        <ImageView            android:layout_width="70dip"            android:layout_height="70dip"            android:src="@mipmap/tmw1"/>    LinearLayout>    <LinearLayout        android:layout_width="wrap_content"        android:layout_height="70dp"        android:paddingLeft="15dp"        android:paddingRight="10dp"        android:orientation="vertical">        <TextView            android:id="@+id/recy_item"            android:layout_width="match_parent"            android:layout_height="wrap_content"            android:textSize="23dp"            android:text="Demo"/>        <TextView            android:id="@+id/recy_time"            android:layout_width="match_parent"            android:layout_height="wrap_content"            android:text="e3:32:66:h5:e3:32:66:h5"            android:paddingTop="3dp"            android:textSize="15dp"/>    LinearLayout>    <LinearLayout        android:layout_width="match_parent"        android:layout_height="70dp"        android:orientation="vertical">        <TextView            android:layout_width="match_parent"            android:layout_height="70dp"            android:gravity="right"            android:paddingRight="20dp"            android:paddingTop="15dp"            android:textSize="23dp"            android:text="Conent"/>    LinearLayout>LinearLayout>RelativeLayout>

再就是创建recy_item_Adapter.java文件了；

package com.example.rnd.jsonobjcet.Adapter;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.TextView;import com.example.rnd.jsonobjcet.R;import java.util.ArrayList;import java.util.List;import java.util.Map;/** * Created by rnd on 2018/3/2. */public class recy_item_Adapter extends RecyclerView.Adapter<recy_item_Adapter.ViewHolder> {    public List> list=new ArrayList<>();    public Context con;    public  LayoutInflater inflater;    public  recy_item_Adapter(List> list, Context con){        this.con=con;        this.list=list;        inflater= LayoutInflater.from(con);    }    @Override    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {        View view= inflater.inflate( R.layout.recyclerview_item,null);        ViewHolder viewHolder=new ViewHolder(view);        return viewHolder;    }    @Override    public void onBindViewHolder(final ViewHolder holder, int position) {        holder.recy_tv.setText(list.get(position).get("name").toString());        holder.recy_time.setText(list.get(position).get("shijian").toString());    }    @Override    public int getItemCount() {        return list.size();    }    class ViewHolder extends RecyclerView.ViewHolder{        public TextView recy_tv,recy_time;        public ViewHolder(View itemView) {            super(itemView);            recy_tv= itemView.findViewById(R.id.recy_item);            recy_time= itemView.findViewById(R.id.recy_time);        }    }}

ok，适配器写好了，就差主java了，FirstFragment.java，我这是底部选项卡fragment界面获取的动态json解析列表；

package com.example.rnd.jsonobjcet.Fragment;import android.app.DownloadManager;import android.os.Bundle;import android.os.Handler;import android.os.Message;import android.support.v4.app.Fragment;import android.support.v7.widget.DividerItemDecoration;import android.support.v7.widget.LinearLayoutManager;import android.support.v7.widget.RecyclerView;import android.util.Log;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.ListView;import android.widget.TextView;import com.example.rnd.jsonobjcet.Adapter.recy_item_Adapter;import com.example.rnd.jsonobjcet.R;import com.squareup.okhttp.OkHttpClient;import com.squareup.okhttp.Request;import com.squareup.okhttp.Response;import org.json.JSONArray;import org.json.JSONException;import org.json.JSONObject;import java.io.IOException;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;/** * Created by dm on 16-3-29. * 第一个页面 */public class FirstFragment extends Fragment {    public  String date;    public  String title;    private TextView datejson;    public RecyclerView recyclerview;    public List> list=new ArrayList<>();    @Override    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {        View view = inflater.inflate( R.layout.fragment1, container, false );        recyclerview= view.findViewById(R.id.recy);        okhttpDate();        return view;        //获取数据    }    private void okhttpDate() {        Log.i("TAG","--ok-");        new Thread(new Runnable() {            @Override            public void run() {                OkHttpClient client=new OkHttpClient();                Request request=new Request.Builder().url("这里写自己的服务器完整json路径").build();                try {                   Response sponse=client.newCall(request).execute();                   date=sponse.body().string();//                    //解析                  jsonJXDate(date);                }catch (IOException e) {                    e.printStackTrace();                }            }        }).start();    }    private void jsonJXDate(String date) {        if(date!=null) {            try {                JSONObject jsonObject = new JSONObject(date);                String resultCode = jsonObject.getString("message");                if (resultCode.equals("success")) {                    JSONArray resultJsonArray = jsonObject.getJSONArray("devices");                    for(int i=0;i map = new HashMap<>();                            //获取到json数据中的activity数组里的内容name                            String name = jsonObject.getString("devicename");                            //获取到json数据中的activity数组里的内容startTime                            String shijian=jsonObject.getString("deviceaddre");                            //存入map                            map.put("name", name);                            map.put("shijian", shijian);                            //ArrayList集合                            list.add(map);                    }                    }//                for (int i = 0; i < jsonArray.length(); i++) {//                    JSONObject jsonObject = jsonArray.getJSONObject(i);//                    title = jsonObject.getString("devicename");//                    Map map = new HashMap<>();//                    map.put("title", title);//                    list.add(map);//                }                Message msg=new Message();                msg.what=1;                handler.sendMessage(msg);            } catch (JSONException e) {                e.printStackTrace();            }        }    }    public Handler handler=new Handler(){        @Override        public void handleMessage(Message msg) {            switch (msg.what){                case 1:                    //添加分割线                    recyclerview.addItemDecoration(new DividerItemDecoration(                     getActivity(), DividerItemDecoration.VERTICAL));                    recy_item_Adapter recy=new recy_item_Adapter(list,getActivity());                    //设置布局显示格式                    recyclerview.setLayoutManager(new LinearLayoutManager(getActivity()));                    recyclerview.setAdapter(recy);                    break;            }        }    };}

还有就是网络配置需要记得添加：

<uses-permission android:name="android.permission.INTERNET">uses-permission>

最后重点记住：我这个是fragment底部选项卡做的界面列表，若你是anctivity.jav，就创建activity界面，其它数据挪用就ok。

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