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：
<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,
<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。