메인 클래스의 Android에서 url로부터 JSON 검색

Question

나는 항목의 기본 목록 인 매우 간단한 android 프로젝트를 가지고 있습니다.

다른 클래스 나 파일을 사용하지 않고 동일한 Main.java 클래스의 URL에서 JSON을 가져올 수 있습니까?

기본적으로 모든 프로젝트에서 사용할 수있는 작고 작은 스크립트가 있습니까?

나는 내 프로젝트에 스크립트를 통합하는 데 문제가있어서 자바와 안드로이드 개발에 매우 ​​익숙하다.

Main.java

package com.jamfactory.articles; 

import android.app.Activity; 
import android.os.Bundle; 
import android.view.View; 
import android.widget.ListView; 

public class Main extends Activity { 
    private ListView listView1; 

    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.main);     


     // Get JSON 

     // Get JSON  


     List article_data[] = new List[] 
     { 
      new List(R.drawable.cloudy, "Article One", "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua."), 
      new List(R.drawable.showers, "Article Two", "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua."), 
      new List(R.drawable.snow, "Article Three", "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua."), 
      new List(R.drawable.storm, "Article Four", "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua."), 
      new List(R.drawable.sunny, "Article Five", "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.") 
     }; 





     ListAdapter adapter = new ListAdapter(this, 
       R.layout.listview_item_row, article_data); 


     listView1 = (ListView)findViewById(R.id.listView1); 

     View header = (View)getLayoutInflater().inflate(R.layout.listview_header_row, null); 
     listView1.addHeaderView(header); 

     listView1.setAdapter(adapter); 
    }} 

Answer 1

package com.jamfactory.articles; 

import android.app.Activity; 
import android.os.Bundle; 
import android.view.View; 
import android.widget.ListView; 

public class Main extends Activity { 
    private ListView listView1; 
    String JSON; 
    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.main);     
     String url = “”//the url from where you want to fetch the 
JSON 
     new PerformBackgroundTask.execute(url); 
     // Get JSON 

     // Get JSON  


     List article_data[] = new List[] 
     { 
      new List(R.drawable.cloudy, "Article One", "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua."), 
      new List(R.drawable.showers, "Article Two", "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua."), 
      new List(R.drawable.snow, "Article Three", "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua."), 
      new List(R.drawable.storm, "Article Four", "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua."), 
      new List(R.drawable.sunny, "Article Five", "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.") 
     }; 





     ListAdapter adapter = new ListAdapter(this, 
       R.layout.listview_item_row, article_data); 


     listView1 = (ListView)findViewById(R.id.listView1); 

     View header = (View)getLayoutInflater().inflate(R.layout.listview_header_row, null); 
     listView1.addHeaderView(header); 

     listView1.setAdapter(adapter); 
    }} 



class PerformBackgroundTask extends AsyncTask<Void, Void, Void> { 
String url; 
     public PerformBackgroundTask(String url1){ 
this.url = url1; 
} 

     @Override 
     protected Void doInBackground(Void... params) { 
      // TODO Auto-generated method stub 

      JSON = performHtpGet(url) 

    //HERE JSON IS THE VALUE WHICH IS FETCHED 
      return null; 
     } 

     @Override 
     protected void onPostExecute(Void result) { 
      // TODO Auto-generated method stub 
      super.onPostExecute(result); 

    } 


private String performHtpGet(String queryUrl){ 
      try{ 
       DefaultHttpClient httpClient = new DefaultHttpClient(); 
       Log.d("Inside performHtpGet():", "1"); 
       HttpGet get = new HttpGet(BASE_URL+queryUrl); 
       Log.d("Inside performHtpGet():", "2"); 
       HttpResponse response = httpClient.execute(get); 
       Log.d("Inside performHtpGet():", "4"); 
       String result = EntityUtils.toString(response.getEntity()); 
       Log.d("Inside performHtpGet():", "5");   
       return result; 
      }catch(Exception e){ 
       return null; 
      } 
     }