(void) saveData:(NSMutableArray*)theArray {
   NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
  // NSMutableArray *arr = ... ; // set value
   NSData *data = [NSKeyedArchiver archivedDataWithRootObject:theArray];
   [defaults setObject:data forKey:[NSString stringWithFormat:@"myKey"]];
   NSLog(@"Saved stuff to user defaults");

}

- (NSMutableArray*) loadData {
   NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
   NSData *data = [defaults objectForKey:[NSString stringWithFormat:@"myKey"]];
   NSMutableArray *aArray = [NSKeyedUnarchiver unarchiveObjectWithData:data];
   //notes = [NSKeyedUnarchiver unarchiveObjectWithData:data];
   NSLog(@"Loading stuff from user defaults");
   return aArray;
}
didär metoderna används för att spara/ladda data
- (void) encodeWithCoder:(NSCoder *)encoder {
   //Encoding stuff

   self = [super init];
   if (self != nil) {
       [encoder encodeObject:self.noteContent forKey:@"noteContent"];
       [encoder encodeObject:self.noteCreatedDate forKey:@"noteCreatedDate"];
       [encoder encodeObject:self.title forKey:@"title"];
   }
}

-(id)initWithCoder:(NSCoder *)decoder
{
   //Decodes stuff
   self.noteContent = [decoder decodeObjectForKey:@"noteContent"];
   self.noteCreatedDate = [decoder decodeObjectForKey:@"noteCreadetDate"];
   self.title = [decoder decodeObjectForKey:@"title"];
   return self;
}