package com.example.gj153.myapplication;

import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;


public class Community_border extends AppCompatActivity {
final int ITEM_SIZE = 9;

    String myJson;

final String TAG_RESULTE = "result";
final String TAG_ID = "id";
final String TAG_NAME = "name";
final String TAG_TITLE = "title";
final String TAG_CONTENT = "content";
final String TAG_AREA = "area";

    JSONArray board = null;
    ArrayList<HashMap<String, String>> boardList;

    RecyclerView community;
    List<Community_item> items1;
    Community_item[] item1;

@Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
        setContentView(R.layout.community_form);

boardList = new ArrayList<HashMap<String,String>>();
community = (RecyclerView) findViewById(R.id.recycleview1);

        LinearLayoutManager community_layout = new LinearLayoutManager(getApplicationContext());
community.setHasFixedSize(true);
community.setLayoutManager(community_layout);

        Intent intent = getIntent();
int po = intent.getExtras().getInt("position");

switch (po) {
case 0:
                getData("http://192.168/board_seoul.php");
break;
case 1:
                getData("http://192.168/board_gyeonggi.php");
break;
case 2:
                getData("http://192.168/board_gangwon.php");
break;
case 3:
                getData("http://192.168/board_chungcheong.php");
break;
case 4:
                getData("http://192.168/board_jeolla.php");
break;
case 5:
                getData("http://192.168/board_gyeongsang.php");
break;
        }
    }

//View 액션바에 메뉴 등록
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        MenuInflater menuInflater = getMenuInflater();
super.onCreateOptionsMenu(menu);

        menuInflater.inflate(R.menu.board_writer,menu);
return true;
    }

//옵션 메뉴를 선택했을때 동작
    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

//noinspection SimplifiableIfStatement
        if (id == R.id.action_write) {
            Intent intent = new Intent(this, Community_writing.class);
            startActivity(intent);
        }

return super.onOptionsItemSelected(item);
    }

protected void showList(){
try {
            JSONObject jsonObj = new JSONObject(myJson);
board = jsonObj.getJSONArray(TAG_RESULTE);
item1 = new Community_item[board.length()];
items1 = new ArrayList<>();

for(int i=0;i<board.length();i++){
                JSONObject c = board.getJSONObject(i);
                String id = c.getString(TAG_ID);
                String name = c.getString(TAG_NAME);
                String title = c.getString(TAG_TITLE);
                String content = c.getString(TAG_CONTENT);
                String area = c.getString(TAG_AREA);

                HashMap<String,String> posts = new HashMap<String,String>();

                posts.put(TAG_ID,id);
                posts.put(TAG_NAME,name);
                posts.put(TAG_TITLE,title);
                posts.put(TAG_CONTENT,content);
                posts.put(TAG_AREA,area);

boardList.add(posts);
            }

for(int i = 0; i < board.length(); i++) {
                HashMap<String, String> list = new HashMap<String, String>();
                list = boardList.get(i);
item1[i] = new Community_item(list.get(TAG_TITLE),list.get(TAG_CONTENT),list.get(TAG_NAME));
            }

for(int i = 0; i < board.length(); i++ ) {
items1.add(item1[i]);
            }

community.setAdapter(new Community_Adapter(getApplicationContext(), items1, R.layout.community_form));

        } catch (JSONException e) {
            e.printStackTrace();
        }

    }

public void getData(String url){
class GetDataJSON extends AsyncTask<String, Void, String> {

@Override
            protected String doInBackground(String... params) {

                String uri = params[0];

                Log.d("URL", "" + uri);
                BufferedReader bufferedReader = null;
try {
                    URL url = new URL(uri);
                    HttpURLConnection con = (HttpURLConnection) url.openConnection();
                    StringBuilder sb = new StringBuilder();

                    bufferedReader = new BufferedReader(new InputStreamReader(con.getInputStream()));
                    Log.d("Buffer", "" + bufferedReader);

                    String json;
while((json = bufferedReader.readLine())!= null){
                        sb.append(json+"\n");
                        Log.d("SB", "" + sb);
                    }

return sb.toString().trim();

                }catch(Exception e){
return null;
                }
            }

@Override
            protected void onPostExecute(String result){
myJson=result;
                Log.d("RESULT", "" + myJson);
                showList();

            }
        }
        GetDataJSON g = new GetDataJSON();
        g.execute(url);
    }
}

GetData에서 Json형태로 받아오고 ShowList에서 뿌려주는 형태인데....

가상머신에선 기가막히게 잘나옵니다. 그런데 왜 스마트폰에서는 안나오는지....

코드상 문제는 없는거 같은데 컴퓨터 설정이 문제일까요???