Trouble accessing Mutable array
- by Jared Gross
Im having trouble with my for loop where I am trying to index user names. I am able to separate my original array into individual objects but am not able to send the value to a new array that I need to reference later on. The value and count for userNames in my self.userNamesArray = userNames; line is correct. But right after that when I log self.userNamesArray, I get (null). Any tips cause I'm not completely sure I'm cheers!
.h
@property (nonatomic, copy) NSMutableArray *userNamesArray;
.m
- (void)viewWillAppear:(BOOL)animated {
self.friendsRelation = [[PFUser currentUser] objectForKey:@"friendsRelation"];
PFQuery *query = [self.friendsRelation query];
[query orderByAscending:@"username"];
[query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
if (error) {
NSLog(@"Error: %@ %@", error, [error userInfo]);
}
else {
self.friends = objects;
NSArray *users = [self.friends valueForKey:@"username"];
NSLog(@"username:%@", users);
//Create an array of name wrappers and pass to the root view controller.
NSMutableArray *userNames = [[NSMutableArray alloc] initWithCapacity:[self.friends count]];
for (NSString *user in users) {
componentsSeparatedByCharactersInSet:charSet];
NSArray *nameComponents = [user componentsSeparatedByString:@" "];
UserNameWrapper *userNameWrapper = [[UserNameWrapper alloc] initWithUserName:nil nameComponents:nameComponents];
[userNames addObject:userNameWrapper];
}
self.userNamesArray = userNames;
NSLog(@"userNamesArray:%@",self.userNamesArray);
[self.tableView reloadData];
}
Here's the code where I need to reference the self.userNamesArray where again, it is comping up nil.
- (void)setUserNamesArray:(NSMutableArray *)newDataArray {
if (newDataArray != self.userNamesArray) {
self.userNamesArray = [newDataArray mutableCopy];
if (self.userNamesArray == nil) {
self.sectionsArray = nil;
NSLog(@"user names empty");
}
else {
[self configureSections];
}
}
}
