Question

I’ve pieced together a few snippets from around stackoverflow, but I can’t seem to get this behaving as I’d expect.

I am trying to take the NSUSerDefaults and populate a UITableView with the data.

The dictionary is populated, and all the NSLog’s output what I expect. But the final cellForRowAtIndexPath is not returning anything to the table view.

I have the cell identifier and reuse set to “cell” but the table view is coming up empty

- (void)viewDidLoad {
    [super viewDidLoad];

    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
    myDictionary = [defaults dictionaryRepresentation]; }
    NSLog(@"Dict: %@",myDictionary);
    NSLog(@"count: %d", [myDictionary count]);
    NSArray * allKeys = [myDictionary allKeys];
    NSLog(@"%@",allKeys);

-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
    return 1; }

-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    return [myDictionary count]; }

-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {

    static NSString *CellIdentifier = @"cell";    
    UITableViewCell *cell = (UITableViewCell *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    NSArray * allKeys = [myDictionary allKeys];
    cell.textLabel.text = [myDictionary objectForKey:[allKeys objectAtIndex:indexPath.row]];
    cell.detailTextLabel.text = [myDictionary objectForKey:[allKeys objectAtIndex:indexPath.row]];;

    return cell; }

at the head of my myTableViewController.m file I have:

@interface myTableViewController ()
{
    NSDictionary *myDictionary;
}

Answer 1

Summary from the comments.

Update your .m as follows (typed quickly – possible typos below):

@interface myTableViewController () <UITableViewDataSource, UITableViewDelegate>
{
    NSDictionary *myDictionary;
    NSArray *myKeys;
}

- (void)viewDidLoad {
    [super viewDidLoad];

    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
    myDictionary = [defaults dictionaryRepresentation]; 
    myKeys = [defaults allKeys];

    // not sure where your table view is created but set the dataSource and delegate
    myTableView.dataSource = self;
    myTableView.delegate = self;
}

-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    return myKeys.count; 
}

-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {

    static NSString *CellIdentifier = @"cell";    
    UITableViewCell *cell = (UITableViewCell *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    if(cell == nil){ 
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:CellIdentifier];
    }

    NSString *key = myKeys[indexPath.row];
    cell.textLabel.text = myDictionary[key];
    cell.detailTextLabel.text = myDictionary[key];

    return cell; 
}