Cells Do Not Appear in UITableViewController - ios

Question

I'm having an issue with displaying cells in my UITableViewController, simply..nothing shows up when I go to test. Below is my code.
FormationViewController.m
#import <Foundation/Foundation.h>
#import "FormationViewController.h"
#interface FormationViewController ()
#end
#implementation FormationViewController
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView
numberOfRowsInSection:(NSInteger)section {
return [self.names count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView
cellForRowAtIndexPath:(NSIndexPath *)indexPath {
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:#"Title"
forIndexPath:indexPath];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault
reuseIdentifier:#"Title"];
}
NSString *name = _names[indexPath.row];
cell.textLabel.text = [NSString stringWithFormat:#"%#", name];
return cell;
}
- (void) tableView:(UITableView *)tableView
didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
}
- (id)initWithNibName:(NSString *)nibNameOrNil
bundle:(NSBundle *)nibBundleOrNil {
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
self.title = #"Formation View";
self.tabBarItem.image = [UIImage imageNamed:#"tab_icon_formation"];
self.names = #[#"John Doe", #"Lee Harvey Oswald", #"Pat Buchanan", #"Angry Orchard",
#"Sierra Nevad", #"Jeff Bridges", #"John McClain", #"Lucy Genero"];
}
return self;
}
- (void)viewDidLoad {
[super viewDidLoad];
NSLog(#"The length of names is %lu", self.names.count);
}
- (void)viewWillLayoutSubviews {
[super viewWillLayoutSubviews];
self.formationVC.frame = CGRectMake(
0,
self.topLayoutGuide.length,
CGRectGetWidth(self.view.frame),
CGRectGetHeight(self.view.frame)
- self.topLayoutGuide.length
- self.bottomLayoutGuide.length
);
}
- (void)loadView {
UIView *view = [[UIView alloc] init];
view.backgroundColor = [UIColor whiteColor];
self.formationVC = [[UIView alloc] init];
self.formationVC.backgroundColor = [UIColor whiteColor];
[view addSubview:self.formationVC];
self.view = view;
}
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
}
- (UIStatusBarStyle)preferredStatusBarStyle {
return UIStatusBarStyleLightContent;
}
#end
And my FormationViewController.h
#import <UIKit/UIKit.h>
#interface FormationViewController : UITableViewController
#property (strong, nonatomic) UIView *formationVC;
#property (strong, nonatomic) NSArray *names;
#end
I'm also not sure if I'm putting some of these lines of code in the right methods.
I also think that my problem might be lying in the tableView:cellForRowAtIndexPath: method. I'm not absolutely sure I'm implementing that 100% correctly.
If anyone can help me find out what I'm doing wrong please let me know. This is my first Obj-C/iOS project I'm working on too so please be gentle! Thank you!

Answer 1

Well, I tried your code , using no xibs and faced the same problem.
Then I changed 2 things
removed LoadView.
moved self.names intialization from initWithNibName to viewDidLoad
added
[self.tableView registerClass:[UITableViewCell class] forCellReuseIdentifier:#"Title"];
[self.tableView reloadData];
to viewDidload
And it worked

Answer 2

I think you' re never stop in (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil ... if you instantiate your view controller from a storyboard, you need to implement initWithCoder, or just put your names initialization in viewDidLoad.

Answer 3

As you are probably using Storyboard, check these steps:
1) Storyboard - select your table view controller and in Identity Inspector make sure you have it's class set to your FormationVC.
2) Storyboard - select table view inside the controller and select it's first cell (suggesting you use Prototype Cells). Make sure it's style is set to Basic and set it's identifier for example to "BasicCell".
3) Go to your code and use this:
FormationVC.h
#import <UIKit/UIKit.h>
#interface FormationVC : UITableViewController
#end
FormationVC.m
#import "FormationVC.h"
#interface FormationVC ()
#property (strong, nonatomic) NSArray *names;
#end
#implementation FormationVC
#pragma mark - View Lifecycle
- (void)viewDidLoad {
[super viewDidLoad];
// you must not forget to call your custom init method once the view is loaded
[self setupView];
}
- (void)setupView {
// set title of VC
self.title = #"Formation View";
// create array of names
_names = #[#"John Doe", #"Lee Harvey Oswald", #"Pat Buchanan", #"Angry Orchard",
#"Sierra Nevad", #"Jeff Bridges", #"John McClain", #"Lucy Genero"];
// log number of names in names array
NSLog(#"The length of names is %lu", _names.count);
}
#pragma mark - Table View
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return [_names count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:#"BasicCell" forIndexPath:indexPath];
cell.textLabel.text = [NSString stringWithFormat:#"%#", _names[indexPath.row]];
return cell;
}
#end

Answer 4

Problem IS there :-
#property (strong, nonatomic) NSArray *names;
change NSArrayTo NSMutableArray
in.h
EX:- #property (nonatomic , retain) NSMutableArray *names
and in.m
names = [[NSMutableArray alloc] init];
and then alloc init your Array and then put value its work .