public synchronized ExpenseThumbnail getThumbnail(
int id,
ExpenseThumbnail.OnExpenseThumbnailLoadedListener onLoadedListener,
Object onLoadedContext) {
ExpenseThumbnail thumb = mThumbs.get(new Integer(id));
if (thumb != null) {
if (onLoadedListener != null)
thumb.registerOnLoadedListener(onLoadedListener, onLoadedContext);
return thumb;
}
thumb = new ExpenseThumbnail(mContext, id);
if (onLoadedListener != null) {
thumb.registerOnLoadedListener(onLoadedListener, onLoadedContext);
Log.d(
"ThumbCache",
"thumb id "
+ Integer.toString(thumb.id)
+ " has new load listener "
+ onLoadedListener.toString()
+ " with context "
+ (onLoadedContext == null ? "<null>" : onLoadedContext.toString()));
}
LoadThumbnailTask task = new LoadThumbnailTask();
task.execute(thumb);
Log.d("ThumbCache", "added thumb id " + Integer.toString(thumb.id) + " to load list");
// cache the thumbnail
mThumbs.put(new Integer(id), thumb);
Log.d("ThumbCache", "cached thumb id " + Integer.toString(thumb.id));
return thumb;
}
/* (non-Javadoc)
* @see android.os.AsyncTask#onPostExecute(java.lang.Object)
*/
@Override
protected void onPostExecute(ExpenseThumbnail thumb) {
// this will be executed on the UI thread
thumb.notifyOnLoadedListeners();
}