title: How do I get adapter to update views after data changes when using fragments?
body: <p>I have a list of orders in one fragment. In a second fragment, I display the detail of the order, and I use a third fragment to display the buttons that change the status of the order.</p>
  
  <p>In the list, each order is displayed with a background color that indicates its status, for example green for a completed delivery.</p>
  
  <p>When in landscape mode, both the detail and list are shown. In portrait mode I use two separate activities.</p>
  
  <p>This all works fine, up until I change the status of an order. I can't find a way to get the list to update.</p>
  
  <p>As I understand it, what needs to happen is the adapter needs to have its notifyDateChanged() method called. I've tried calling it directly from the method that processes the button click, I've tried an asynctask, and I've tried a handler. My debug methods show that the call is happening, but the list doesn't get updated.</p>
  
  <p>It's possible I'm doing something completely bone-headed, but I've double and triple checked things. I suspect there is some key element I don't understand. I hope someone else does and will tell me what I'm missing.</p>
  
  <p>I had some code posted, but it was clearly wrong. Not sure what code to post, since I think this is more a conceptual than coding issue.</p>