Android Open Source - ImageSearch Image Search

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Back to project page ImageSearch.

License

The source code is released under:

MIT License

Java Source Code

package net.crimsonresearch.imagesearch;
/*  w w  w .  ja  v a 2s.  com*/
import java.util.ArrayList;

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

import com.loopj.android.http.AsyncHttpClient;
import com.loopj.android.http.JsonHttpResponseHandler;

import android.net.Uri;
import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.GridView;
import android.widget.Toast;

public class ImageSearch extends Activity {
  public static final int IMAGE_DISPLAY_ACTIVITY = 0;
  public static final int SETTINGS_ACTIVITY = 1;
  
  EditText etQuery;
    GridView gvResults;
    Button btnSearch;
    SearchSettings searchSettings = new SearchSettings();
    String queryString;
    
    ArrayList<ImageResult> imageResults = new ArrayList<ImageResult>();
    ImageResultArrayAdapter imageAdapter;
    
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_image_search);
    setupViews();
    imageAdapter = new ImageResultArrayAdapter(this, imageResults);
    gvResults.setAdapter(imageAdapter);
    gvResults.setOnItemClickListener(new OnItemClickListener() {
      @Override
      public void onItemClick(AdapterView<?> adapter, View parent, int position, long rowId) {
        Intent i = new Intent(getApplicationContext(), ImageDisplayActivity.class);
        ImageResult imageResult = imageResults.get(position);
        i.putExtra(ImageDisplayActivity.KEY_NAME, imageResult);
        startActivityForResult(i, IMAGE_DISPLAY_ACTIVITY);
      }
    });
    
    gvResults.setOnScrollListener(new EndlessScrollListener() {
      @Override
      public void onLoadMore(int page, int totalItemsCount) {
        loadImagesForPage(page, queryString);
      }
    });
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.image_search, menu);
    return true;
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
      // Handle presses on the action bar items
      switch (item.getItemId()) {
        case R.id.action_settings:
              openSettings();
              return true;
          default:
              return super.onOptionsItemSelected(item);
      }
  }
  
  private void openSettings() {
    Intent i = new Intent(getApplicationContext(), Settings.class);
    i.putExtra(Settings.KEY_NAME, searchSettings);
    startActivityForResult(i, SETTINGS_ACTIVITY);
  }

  @Override
  protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (requestCode == SETTINGS_ACTIVITY && resultCode == Activity.RESULT_OK) {  
      searchSettings = (SearchSettings) data.getSerializableExtra(Settings.KEY_NAME);
    }
  }

  private void setupViews() {
    etQuery = (EditText) findViewById(R.id.etQuery);
    gvResults = (GridView) findViewById(R.id.gvResults);
    btnSearch = (Button) findViewById(R.id.btnSearch);
  }
  
  public void onImageSearch(View v) {
      queryString = etQuery.getText().toString();
    Toast.makeText(this, "Searching for " + queryString, Toast.LENGTH_LONG).show();
    imageResults.clear();
    loadImagesForPage(0, queryString);
  }
  
    private void loadImagesForPage(final int page, final String queryString) {
    AsyncHttpClient client = new AsyncHttpClient();
    String urlString = "";
    String value = searchSettings.getColorFilter();
    if(value != null && value.length() > 0)
    {
      urlString += "&imgcolor=" + Uri.encode(value);
    }
    value = searchSettings.getImageSize();
    if(value != null && value.length() > 0)
    {
      urlString += "&imgsz="+ Uri.encode(value);
    }
    
    value = searchSettings.getImageType();
    if(value != null && value.length() > 0)
    {
      urlString += "&imgtype="+Uri.encode(value);
    }
    
    value = searchSettings.getSiteFilter();
    if(value != null && value.length() > 0)
    {
      urlString += "&as_sitesearch=" + Uri.encode(value);
    }
    
    urlString += "&v=1.0&q=" + Uri.encode(queryString);
    // https://ajax.googleapis.com/ajax/services/search/images?q=Android&v=1.0
    client.get("http://ajax.googleapis.com/ajax/services/search/images?rsz=8&start=" + page + urlString, new JsonHttpResponseHandler() {
      public void onSuccess(JSONObject response) {
        JSONArray imageJsonResult = null;
        try {
          imageJsonResult = response.getJSONObject("responseData").getJSONArray("results");
          imageAdapter.addAll(ImageResult.fromJSONArray(imageJsonResult));
          Log.d("DEBUG", imageResults.toString());
        } catch (JSONException e) {
          e.printStackTrace();
        }
        
      }
    });
    }
}

Java Source Code List

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