content: package com.android.ex.photo.loaders;
  
  import android.content.res.Resources;
  import android.graphics.Bitmap;
  import android.graphics.drawable.BitmapDrawable;
  import android.graphics.drawable.Drawable;
  
  public interface PhotoBitmapLoaderInterface {
  
      public void setPhotoUri(String photoUri);
  
      public void forceLoad();
  
      public static class BitmapResult {
          public static final int STATUS_SUCCESS = 0;
          public static final int STATUS_EXCEPTION = 1;
  
          public Drawable drawable;
          public Bitmap bitmap;
          public int status;
  
          /**
           * Returns a drawable to be used in the {@link com.android.ex.photo.views.PhotoView}.
           * Should return null if the drawable is not ready to be shown (for instance, if
           * the underlying bitmap is null).
           */
          public Drawable getDrawable(Resources resources) {
              if (resources == null) {
                  throw new IllegalArgumentException("resources can not be null!");
              }
  
              if (drawable != null) {
                  return drawable;
              }
  
              // Don't create a new drawable if there's no bitmap. PhotoViewFragment regards
              // a null drawable as a signal to keep showing the loading stuff.
              // b/12348405.
              if (bitmap == null) {
                  return null;
              }
  
              return new BitmapDrawable(resources, bitmap);
          }
      }
  }
  