Android Open Source - GoogleImageLoader Search Image Adapter

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Back to project page GoogleImageLoader.

License

The source code is released under:

GNU General Public License

Java Source Code

package com.challenge.uber.imageloader.adapter;
//from  ww w  . j  a  va  2  s . c  o m
import org.json.JSONObject;

import android.content.Context;
import android.text.Html;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;

import com.challenge.uber.imageloader.R;
import com.challenge.uber.imageloader.utils.ShadowedTransformation;
import com.squareup.picasso.Picasso;

/**
 * Grid adpater for load and displaying the images from the google search.
 * @author Julien Salvi
 *
 */
public class SearchImageAdapter extends BaseAdapter {
  
  //Context references.
  private Context context;
  private LayoutInflater inflater;
  
  //JSON references.
  private JSONObject imagesJson;

  //View holder reference.
  private SearchImageViewHolder searchViewHolder;

  /**
   * Constructor with the current context and the JSON data.
   * @param c Current context
   * @param json JSON from the Google Search.
   */
  public SearchImageAdapter(Context c, JSONObject json) {
    context = c;
    imagesJson = json;
    inflater = (LayoutInflater) c.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
  }
  
  /**
   * View Holder in order to display the data.
   * @author Julien Salvi
   */
  static class SearchImageViewHolder {
    protected ImageView imgViewGoogleSearch;
      protected TextView textImage;
  }

  @Override
  public int getCount() {
    try  {
      return imagesJson.getJSONObject("responseData").getJSONArray("results").length();
    } catch (Exception e){
      return 0;
    }
  }

  @Override
  public JSONObject getItem(int position) {
    try {
      return imagesJson.getJSONObject("responseData").getJSONArray("results").getJSONObject(position);
    } catch (Exception e) {
      return null;
    }
  }

  @Override
  public long getItemId(int position) {
    return position;
  }

  @Override
  public View getView(int position, View convertView, ViewGroup parent) {
    View view = null;
    searchViewHolder = null;
    
    if (convertView == null) {
      searchViewHolder = new SearchImageViewHolder();
      view = inflater.inflate(R.layout.item_image_grid, null);
      searchViewHolder.imgViewGoogleSearch = (ImageView) view.findViewById(R.id.image_googlesearch);
      searchViewHolder.textImage = (TextView) view.findViewById(R.id.text_image_title);
      view.setTag(searchViewHolder);
    } else {
      view = convertView;
      searchViewHolder = (SearchImageViewHolder)view.getTag();
    }
    
    try {
      // Setup image and title
      searchViewHolder.textImage.setText(
          Html.fromHtml(imagesJson.getJSONObject("responseData").getJSONArray("results").getJSONObject(position).optString("title", "no title")));
      Picasso
        .with(context)
        .load(Html.fromHtml(
            imagesJson.getJSONObject("responseData").getJSONArray("results").getJSONObject(position).optString("unescapedUrl")).toString())
        .placeholder(R.drawable.default_img)
        .error(R.drawable.default_img)
        .transform(new ShadowedTransformation())
        .into(searchViewHolder.imgViewGoogleSearch);
    } catch (Exception e) { }
      
    return view;
  }
  
  public JSONObject getImagesJson() {
    return imagesJson;
  }

  public void setImagesJson(JSONObject imagesJson) {
    this.imagesJson = imagesJson;
  }

}

Java Source Code List

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