Android Open Source - android_google_image_searcher Google Image Client

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Back to project page android_google_image_searcher.

License

The source code is released under:

GNU General Public License

Java Source Code

package com.github.snambi.googleimagesearcher;
//ww w  . jav  a  2  s  . c  o m
import java.util.List;

import org.apache.http.Header;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import android.util.Log;

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

public class GoogleImageClient {
  
  public static final String REST_API ="https://ajax.googleapis.com/ajax/services/search/images?v=1.0";
  
  // Image Adapter
  private GoogleImageAdapter imageAdapter = null;

  // result of the query
  private List<Image> images = null;
  
  // mandatory field
  private String queryString ="tigers";
  
  // optional fields
  private String color=null;
  private String type=null;
  private String size=null;
  private String site=null;
  
  
  // store pagination details
  private int currentPage = 0;
  
  public GoogleImageClient( GoogleImageAdapter imageAdapter, List<Image> images ){
    this.imageAdapter = imageAdapter;
    this.images = images;
  }
  
  public String getQueryString() {
    return queryString;
  }

  public void setQueryString(String queryString) {
    this.queryString = queryString;
  }

  public List<Image> getImages(){
    return images;
  }
  public GoogleImageAdapter getImageAdapter(){
    return imageAdapter;
  }

  public String getColor() {
    return color;
  }

  public void setColor(String color) {
    this.color = color;
  }

  public String getType() {
    return type;
  }

  public void setType(String type) {
    this.type = type;
  }

  public String getSize() {
    return size;
  }

  public void setSize(String size) {
    this.size = size;
  }

  public String getSite() {
    return site;
  }

  public void setSite(String site) {
    this.site = site;
  }
  
  public String getRestUrl(){
    StringBuilder sb = new StringBuilder();
    
    sb.append( REST_API );
    sb.append("&q=");
    sb.append( queryString );
    sb.append("&start=");
    sb.append(currentPage);
    if( getSize() != null && !getSize().trim().equals("") ){
      sb.append("&imgsz=");
      sb.append( getSize());
    }
    if( getType() != null && !getType().trim().equals("") ){
      sb.append("&imgtype=");
      sb.append( getType() );
    }
    if( getColor() != null && !getColor().trim().equals("") ){
      sb.append("&imgcolor=");
      sb.append( getColor()); 
    }
    if( getSite() != null  && !getSite().trim().equals("") ){
      sb.append("&as_sitesearch=");
      sb.append( getSite() );
    }
    
    return sb.toString();
  }

  // make an API call and load images from the rest API
  public void loadImages() {
    
    AsyncHttpClient httpClient = new AsyncHttpClient();
    
    //String restUrl = REST_API + "&q=" + queryString + "&start=" + currentPage;
    String restUrl = getRestUrl();
    
    httpClient.get( restUrl , new JsonHttpResponseHandler(){

      @Override
      public void onFailure(int statusCode, Header[] headers,
          Throwable throwable, JSONObject errorResponse) {
        super.onFailure(statusCode, headers, throwable, errorResponse);
      }

      @Override
      public void onSuccess(int statusCode, Header[] headers, JSONObject response) {
        
        // parse the results
        if( response != null && response.has("responseData") ){
          
          try {
            
            JSONObject responseDataJson = response.getJSONObject("responseData");
          
            if( responseDataJson.has("results")){
              JSONArray resultsJSON = responseDataJson.getJSONArray("results");
              
              // parse and create image object
              for( int i=0; i<resultsJSON.length() ; i++ ){
                JSONObject resultJson = resultsJSON.getJSONObject(i);
                Image image = ImageUtil.convertJsonToImage(resultJson);
                getImages().add(image);
              }
              
              // increment the page 
              currentPage = currentPage + 4;
              
              // notify the Adapter
              getImageAdapter().notifyDataSetChanged();
              
              // if less images are available, load again.
              if( getImages().size() <= 15 ){
                loadImages();
              }
            }
            
          } catch (JSONException e) {
            e.printStackTrace();
            Log.e("ERROR", "Json Error while parsing goodle output", e);
          }
        }
      }
      
    });
  }

  // clear any pre-loaded images and state information
  public void clear() {
    images.clear();
    currentPage = 0;
  }
}

Java Source Code List

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