archivedDataWithRootObject:
Returns an
NSData object containing the encoded form of the object graph whose root object is given.
+ (NSData *)archivedDataWithRootObject:(id)rootObject
Parameters
- rootObject
- The root of the object graph to archive.
Return Value of [NSKeyedArchiver archivedDataWithRootObject]
An
NSData object containing the encoded form of the object graph whose root object isrootObject. The format of the archive is NSPropertyListBinaryFormat_v1_0.
Example of [NSKeyedArchiver archivedDataWithRootObject]
NSArray* array= ... ;
NSData* data=[NSKeyedArchiver archivedDataWithRootObject:array];
Example of [NSKeyedArchiver archivedDataWithRootObject]
NSData *data = [NSKeyedArchiver archivedDataWithRootObject:notes];
[[NSUserDefaults standardUserDefaults] setObject:data forKey:@"notes"];
NSData *notesData = [[NSUserDefaults standardUserDefaults] objectForKey:@"notes"];
NSArray *notes = [NSKeyedUnarchiver unarchiveObjectWithData:notesData];
Example of [NSKeyedArchiver archivedDataWithRootObject]
NSData *data = [NSKeyedArchiver archivedDataWithRootObject:results];
[prefs setObject:data forKey:@"lastResults"];