How can I refresh the cursor from a CursorLoader?

Question

So I have my MainDisplayActivity which implements both Activity and LoaderManager.LoaderCallbacks. Here I have A L

Answer 1

You just need to move your code around a little and call restartLoader. That is,

1. When the user clicks a list item, you somehow change the private instance variable that is returned in getChosenDate() (I am being intentionally vague here because you didn't specify what exactly getChosenDate() returns).

2. Once the change is made, call getLoaderManager().restartLoader() on your Loader. Your old data will be discarded and restartLoader will trigger onCreateLoader to be called again. This time around, getChosenDate() will return a different value (depending on the list item that was clicked) and that should do it. Your onCreateLoader implementation should look something like this:

   @Override
   public Loader<Cursor> onCreateLoader(int id, Bundle args) {
       Uri baseUri = SmartCalProvider.CONTENT_URI;
   
       makeProviderBundle(
           new String[] { "_id, event_name, start_date, start_time, end_date, end_time, location" },
           "date(?) >= start_date and date(?) <= end_date", 
           new String[]{ getChosenDate(), getChosenDate() }, 
           null);
   
       return new CursorLoader(
               this, 
               baseUri, 
               args.getStringArray("projection"), 
               args.getString("selection"), 
               args.getStringArray("selectionArgs"),    
               args.getBoolean("sortOrder") ? args.getString("sortOrder") : null);
   }
   

Let me know if that makes sense. :)