Android Open Source - android-http Main Activity

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License

The source code is released under:

MIT License

Java Source Code

package com.example.httpsample;
/*  ww  w  .  j a v  a2 s .  co m*/
import java.lang.reflect.Method;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;

import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;

import android.os.AsyncTask;
import android.os.Bundle;
import android.R.anim;
import android.R.integer;
import android.app.Activity;
import android.text.Html;
import android.text.Spanned;
import android.view.Menu;
import android.view.View;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.Toast;

public class MainActivity extends Activity {
  
  ArrayList<String> m_list = new ArrayList<String>();
  ArrayAdapter<String> m_adapter;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    
    // ?????????
    Animation a = AnimationUtils.loadAnimation(this, R.anim.rotate);
    View button3 = findViewById(R.id.button3);
    button3.startAnimation(a);
    
    // ??????
    m_list.add("AAA");
    m_list.add("BBB");
    m_list.add("CCC");
    m_adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, m_list);
    ListView listView = (ListView)findViewById(R.id.listView1);
    listView.setAdapter(m_adapter);
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.main, menu);
    return true;
  }
  
  public void buttonMethod(View button){
    try{
      String url = "http://yahoo.co.jp/";
      HttpGet request = new HttpGet(url);
      DefaultHttpClient client = new DefaultHttpClient();
      request.setHeader("Connection", "Keep-Alive");
      HttpResponse response = client.execute(request);
      int status = response.getStatusLine().getStatusCode();
      if(status != HttpStatus.SC_OK){
        throw new Exception("NOT OK");
      }
      // ???
      String body = EntityUtils.toString(response.getEntity(), "UTF-8");
      //response.getEntity().getContent().read(bytes);
      //response.getEntity().getContentLength();
      //BitmapUtil.decode?
      showResult(url, body);
    }
    catch(Exception ex){
      Toast.makeText(this, ex.toString(), Toast.LENGTH_SHORT).show();
    }
  }
  private void showResult(String baseUrl_, String result){
    m_list.clear();
    /*
    String[] lines = result.split("\n");
    for(int i = 0; i < lines.length; i++){
      if(i > 10)break;
      m_list.add(lines[i]);
    }
    */
    // ???
    try{
      if(result == null){
        Toast.makeText(this, "error", Toast.LENGTH_SHORT).show();
        return;
      }
      URL baseUrl = new URL(baseUrl_);
      Document doc = Jsoup.parse(result);
      Elements links = doc.select("a");
      for(int i = 0; i < links.size(); i++){
        try{
          Element link = links.get(i);
          URL url = new URL(baseUrl, link.attr("href"));
          // ??URL????
          m_list.add(url.toString());
        }
        catch(MalformedURLException ex){
        }
      }
    }
    catch(MalformedURLException ex){
      
    }
    // ??
    m_adapter.notifyDataSetChanged();
    
  }

  HttpTask m_task;
  public void buttonMethod2(View button){
    // ??????
    if(m_task != null)return;
    m_task = new HttpTask();
    m_task.execute("http://google.co.jp/");
  }
  
  public void buttonMethod3(View button){
    showResult("", "");
  }

  // ???
  public void buttonMethod4(View button){
    showResult("", "");
  }

  // ?????
  class HttpTask extends AsyncTask<String, Integer, String>{
    String m_url = "";
    
    // ???????????
    @Override
    protected void onPreExecute() {
      // ????????
      findViewById(R.id.progressBar1).setVisibility(View.VISIBLE);
      // TODO Auto-generated method stub
      super.onPreExecute();
    }

    // ?????????????????????
    // AsyncTask ??? cancel ???????????????????doInBackground ??? InterruptedException ????????????????????????????? onPostExecute ???????????? onCancelled ??????????????????
    @Override
    protected String doInBackground(String... params) {
      if(params.length == 0)return null;
      String result = null;
      DefaultHttpClient client = new DefaultHttpClient();
      try{
        m_url = params[0];
        HttpGet request = new HttpGet(m_url);
        HttpResponse response = client.execute(request);
        if(response.getStatusLine().getStatusCode() == HttpStatus.SC_OK){
          result = EntityUtils.toString(response.getEntity());
        }
      }
      catch(Exception ex){
      }
      return result;
    }

    // ??????????????UI?????????????????
    @Override
    protected void onProgressUpdate(Integer... values) {
      // TODO Auto-generated method stub
      super.onProgressUpdate(values);
    }
    
    // ????????????????????????????????????UI???????????????????????????????????????????????
    @Override
    protected void onPostExecute(String result) {
      // ?????
      showResult(m_url, result);
      m_task = null;
      // ???????????
      findViewById(R.id.progressBar1).setVisibility(View.INVISIBLE);

      // TODO Auto-generated method stub
      super.onPostExecute(result);
    }

    // ????????????????????cancel?????????????????doInBackground???????????????????????
    @Override
    protected void onCancelled() {
      // TODO Auto-generated method stub
      super.onCancelled();
    }

  }
}

Java Source Code List

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