2014/10/15 下午 10:12:10

iphone Programming Glossary: nsundomanager

undo all changes made in the child view controller

http://stackoverflow.com/questions/10443754/undo-all-changes-made-in-the-child-view-controller

There is only one managedobjectcontext. In the VCBook class i group the undomanager as following void viewDidLoad NSUndoManager anUndoManager NSUndoManager alloc init self.book.managedObjectContext setUndoManager anUndoManager anUndoManager release.. In the VCBook class i group the undomanager as following void viewDidLoad NSUndoManager anUndoManager NSUndoManager alloc init self.book.managedObjectContext setUndoManager anUndoManager anUndoManager release self.book.managedObjectContext.undoManager..

Core Data: Reset to the initial state

http://stackoverflow.com/questions/2214343/core-data-reset-to-the-initial-state

the object again thanks r. iphone iphone sdk 3.0 core data share improve this question Wrap your changes in a NSUndoManager beginUndoGrouping and then a NSUndoManager endUndoGrouping followed by a NSUndoManager undo . That is the correct way to.. sdk 3.0 core data share improve this question Wrap your changes in a NSUndoManager beginUndoGrouping and then a NSUndoManager endUndoGrouping followed by a NSUndoManager undo . That is the correct way to roll back changes. The NSManagedObjectContext.. Wrap your changes in a NSUndoManager beginUndoGrouping and then a NSUndoManager endUndoGrouping followed by a NSUndoManager undo . That is the correct way to roll back changes. The NSManagedObjectContext has its own internal NSUndoManager that..

How does undo/redo basically work on iPhone OS?

http://stackoverflow.com/questions/2449268/how-does-undo-redo-basically-work-on-iphone-os

the user trigger this iphone ios undo redo share improve this question iPhone OS 3.0 brought over the concept of NSUndoManager from the Mac which is what enables undo on the iPhone. NSUndoManager maintains a stack of NSInvocations which are the opposite.. iPhone OS 3.0 brought over the concept of NSUndoManager from the Mac which is what enables undo on the iPhone. NSUndoManager maintains a stack of NSInvocations which are the opposite actions to any edits or other changes you make. For example void.. void observeValueForKeyPath NSString keyPath ofObject id object change NSDictionary change context void context NSUndoManager undo self undoManager Grab the old value of the key id oldValue change objectForKey NSKeyValueChangeOldKey Add edit item..

Detect if the user has touched the screen

http://stackoverflow.com/questions/9251174/detect-if-the-user-has-touched-the-screen

alloc init managedObjectContext setPersistentStoreCoordinator coordinator managedObjectContext setUndoManager NSUndoManager alloc init autorelease return managedObjectContext Returns the managed object model for the application. If the model..