Android Open Source - TwitterSearch-Android Login

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From Project

Back to project page TwitterSearch-Android.

License

The source code is released under:

MIT License

Java Source Code

package hashtag.twittersearch;
//from w  w w  .  j  ava 2  s .  co m
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.ParseException;
import org.apache.http.client.methods.HttpGet;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import android.app.Activity;
import android.content.Intent;
import android.net.http.AndroidHttpClient;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;

public class Login extends Activity 
{
  
  @Override
  protected void onCreate(Bundle savedInstanceState) 
  {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_login);
    final EditText ht = (EditText)findViewById(R.id.hashtagBox1);
    final Button button = (Button) findViewById(R.id.searchButton);
        button.setOnClickListener(new View.OnClickListener() 
        {
            public void onClick(View v) 
            {
              final String hashtag = ht.getText().toString();
                new NetworkTask().execute(hashtag);
                
            }
        });
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu) 
  {
    // Inflate the menu; this adds items to the action bar if it is present.
    // getMenuInflater().inflate(R.menu.login, menu);
    return true;
  }
  
  private class NetworkTask extends AsyncTask<String, Void, String> 
  {
      @Override
      protected String doInBackground(String... params) 
      {
        String ht = params[0];
        String link = "http://gp13twitterapp.appspot.com/hash/"+ht;
        HttpGet request = new HttpGet(link);
          AndroidHttpClient client = AndroidHttpClient.newInstance("Android");
          try 
          {
            HttpResponse result = client.execute(request);
            HttpEntity entity = result.getEntity();
            InputStream is = entity.getContent();
            BufferedReader reader = new BufferedReader(new InputStreamReader(is, "iso-8859-1"),8);
                StringBuilder sb = new StringBuilder();
                String line = null;
                while ((line = reader.readLine()) != null) 
                {
                    sb.append(line + "\n");
                }
                is.close();
                String json = sb.toString();
            return json;
          }
          catch (IOException e) 
          {
            Log.d("IO","IO Error");
              e.printStackTrace();
              return null;
          }
          finally 
          {
            client.close();
          }
      }

      @Override
      protected void onPostExecute(String result) 
      {
          //Do something with result
          if (result != null)
          {
            ArrayList<String> tweets = new ArrayList<String>();
            try{
                JSONObject ob = new JSONObject(result);
            JSONArray statuses = ob.getJSONArray("statuses");
            for(int i=0;i<statuses.length();i++)
            {
              JSONObject status = statuses.getJSONObject(i);
              String tweet = status.getString("text");
              tweets.add(tweet);
            }
            String[] finalTweets = new String[tweets.size()];
            finalTweets = tweets.toArray(finalTweets);
            Bundle b = new Bundle();
            b.putStringArray("tweets",finalTweets);
                    Intent startNewActivityOpen = new Intent(Login.this, Tweets.class);
                    startNewActivityOpen.putExtras(b);
                    startActivityForResult(startNewActivityOpen, 0);
          }  
        catch(JSONException je)
        {
          Log.d("JSON","JSON Parsing Error");
        }
            catch (ParseException e) 
            {
              Log.d("Parsing","Parsing Error");
          e.printStackTrace();
        }
          }
      }
  }
}

Java Source Code List

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