Adding Table View Cell not working in iOS? - ios

Question

I am trying to create a shopping list app. I am very new to Objective-C. Somehow this block of code is not working and I don't know what I did wrong. Whenever I type something in the textfield and click add, the text is not added to the table view.
HEADER FILE:
#interface NotesViewController : UIViewController <UITableViewDataSource, UITableViewDelegate>
#property (nonatomic, strong) NSMutableArray *notes;
#property (nonatomic, strong) IBOutlet UITextField *noteTitleText;
#property (nonatomic, strong) IBOutlet UITableView *noteBlockTableView;
#end
IMPLEMENTATION FILE:
#implementation NotesViewController
#synthesize notes; #synthesize noteTitleText; #synthesize noteBlockTableView;
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return [notes count]; }
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
NSDictionary *tableViewTitle;
tableViewTitle = [notes objectAtIndex:[indexPath row]];
UITableViewCell *cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:nil];
[[cell textLabel] setText:[tableViewTitle objectForKey:#"cellTitle"]];
return cell;
}
-(IBAction)addNote {
NSDictionary *tableViewTitle;
tableViewTitle = [[NSDictionary alloc] initWithObjectsAndKeys:[noteTitleText text], #"cellTitle", nil];
[notes addObject:tableViewTitle];
[noteBlockTableView reloadData];
noteTitleText.text = #"";
}

Answer 1

Maybe you should override numberOfSectionsInTableView function and return 1

Answer 2

Welcome to Objective-C!
Before using NSMutableArray, you should initialize it first, like this:
# NotesViewController.m
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
notes = [[NSMutableArray alloc]init];
}
It should work.

Answer 3

First initialise the array notes, then you should allocate cell like this in cellForRowAtIndexPath method
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
NSDictionary *tableViewTitle;
tableViewTitle = [notes objectAtIndex:[indexPath row]];
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
cell.textLabel.text = [tableViewTitle objectForKey:#"cellTitle"];
return cell;
}