NSManagedObject How To Reload
- by crissag
I have a view that consists of a table of existing objects and an Add button, which allows
the user to create a new object. When the user presses Add, the object is created in the list view
controller, so that the object will be part of that managed object context
(via the NSEntityDescription insertNewObjectForEntityForName: method).
The Add view has a property for the managed object. In the list view controller,
I create an Add view controller, set the property to the managed object I created, and
then push the Add view on to the navigation stack.
In the Add view, I have two buttons for save and cancel. In the save, I save the managed object
and pass the managed object back to the list view controller via a delegate method. If the
user cancels, then I delete the object and pass nil back to the list view controller.
The complication I am having in the add view is related to a UIImagePickerController.
In the Add view, I have a button which allows the user to take a photo of the object
(or use an existing photo from the photo library). However, the process of transferring to the
UIImagePickerController and having the user use the camera, is resulting in a didReceiveMemoryWarning
in the add view controller.
Further, the view was unloaded, which also caused my NSManagedObject to get clobbered. My question
is, how to you go about reloading the NSManagedObject in the case where it was released because
of the low memory situation?
