Android Open Source - Operation-Valkyrie Image Adapter

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License

The source code is released under:

Terms and conditions Preamble: This Agreement, signed on Jun 10, 2012 [hereinafter: Effective Date] governs the relationship between the Enduser, a private person, (hereinafter: Licensee) and Paul N...

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Java Source Code

package valkyrie.ui.gallery;
/*from  w ww  .  j  a v a  2 s  .co  m*/


import valkyrie.file.DecodeBitmaps;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;


import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;

/**
 * 
 * COPYRIGHT: Paul Neuhold, Laurenz Theuerkauf, Alexander Ritz, Jakob Schweighofer, Milo Tischler
 * ? Milo Tischler, Jakob Schweighofer, Alexander Ritz, Paul Neuhold, Laurenz Theuerkauf
 * 
 */
/**
 * Extended class from BaseAdapter, which manages the gridview and the displaying
 * of its pictures.
 */
public class ImageAdapter extends BaseAdapter {
  private static final String TAG = "ImageAdapter";
  
  private Context mContext;
  private int pictures = 0;
  private BitmapFactory.Options opt = new BitmapFactory.Options();


  /**
   * Sets the Context for the ImageView
   * and the number of thumbs to display
   * 
   * @param c
   */
  public ImageAdapter(Context c) {
    this.mContext = c;
    this.pictures = DecodeBitmaps.thumbPosition.size();
    
  }
  
  
  public int getCount() {

    return this.pictures;
  }

  public Object getItem(int position) {

    return null;
  }

  public long getItemId(int position) {

    return 0;
  }

  /**
   * Sets the pictures of the GridView with the thumbs which lies in the Thumb folder.
   * 
   */
  public View getView(int position, View convertView, ViewGroup parent) {

    opt.inSampleSize = 4;
    ImageView imageView;

    if (convertView == null) { // if it's not recycled, initialize some
                  // attributes

      imageView = new ImageView(mContext);
      imageView.setLayoutParams(new GridView.LayoutParams(150, 150));
      imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
      imageView.setPadding(1, 1, 1, 1);
    
      
    } else {
      imageView = (ImageView) convertView;
    }
    //decode Bitmaps for viewing in gridView
    try{
  //  imageView.setImageBitmap(DecodeBitmaps.thumbs.get(position));  
    imageView.setImageBitmap(BitmapFactory.decodeFile(DecodeBitmaps.thumbPosition.get(position)));
    }
    //if we have to less memory to display all the thumbs, create new thumbs with downscaled pixels and resolutions
    catch (OutOfMemoryError e){
      Log.d(TAG, "Running out of Memory using more compressed bitmaps");
      imageView.setImageBitmap(BitmapFactory.decodeFile(DecodeBitmaps.thumbPosition.get(position),opt));
    }
    return imageView;
  }
}

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