Picasso Resize Transform

ResizeTransformation.java

public class ResizeTransformation extends Transformation {
  @Override public
  Bitmap transform(Bitmap source) {
    int targetWidth = getScreenWidth(); // Implementation left as an exercise for the reader.
    if (targetWidth < source.getWidth()) {
      double aspectRatio = (double) source.getHeight() / (double) source.getWidth();
      int targetHeight = (int) (targetWidth * aspectRatio);
      Bitmap result = Bitmap.createScaledBitmap(source, targetWidth, targetHeight, false);
      if (result != source) {
        // Same bitmap is returned if sizes are the same
        source.recycle();
      }
      return result;
    } else {
      return source;
    }
  }

  @Override
  public String key() { return "resize_transform"; }
}