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2014/10/15 ¤U¤È 10:15:27
iphone Programming Glossary: undomanagerCore Data: Reset to the initial state http://stackoverflow.com/questions/2214343/core-data-reset-to-the-initial-state NSManagedObjectContext first . Do this once per MOC NSManagedObjectContext moc self managedObjectContext NSUndoManager undoManager NSUndoManager alloc init moc setUndoManager undoManager undoManager release undoManager nil Example of a grouped undo undoManager.. moc self managedObjectContext NSUndoManager undoManager NSUndoManager alloc init moc setUndoManager undoManager undoManager release undoManager nil Example of a grouped undo undoManager moc undoManager NSManagedObject test NSEntityDescription.. moc self managedObjectContext NSUndoManager undoManager NSUndoManager alloc init moc setUndoManager undoManager undoManager release undoManager nil Example of a grouped undo undoManager moc undoManager NSManagedObject test NSEntityDescription insertNewObjectForEntityForName..
How does undo/redo basically work on iPhone OS? http://stackoverflow.com/questions/2449268/how-does-undo-redo-basically-work-on-iphone-os 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 to the undo stack undo.. undo. These view controllers will need to report back the undo manager to use for that controller by overriding the undoManager method NSUndoManager undoManager return MyDatabaseController sharedDatabaseController scratchpadContext undoManager The.. need to report back the undo manager to use for that controller by overriding the undoManager method NSUndoManager undoManager return MyDatabaseController sharedDatabaseController scratchpadContext undoManager The view controllers will also need to..
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