UITableView is populated with same set of values each time - ios

Question

Im using the following code to load data into tableview. Following is my code,
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell = nil;
cell = (UITableViewCell *)[tableView dequeueReusableCellWithIdentifier:#"any-cell"];
if (cell == nil)
{
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault
reuseIdentifier:#"any-cell"];
cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
cell.layer.borderWidth = 1.0;
cell.layer.cornerRadius = 10;
cell.layer.borderColor = [UIColor blackColor].CGColor;
UILabel* productAmountTextLabel = [[UILabel alloc]init];
productAmountTextLabel.font = [UIFont fontWithName:#"HelveticaNeue" size:10];
productAmountTextLabel.frame = CGRectMake(0, 0, 100, 30); // for example
productAmountTextLabel.tag = 10000; // any number
[cell.contentView addSubview:productAmountTextLabel];
}
UILabel* lbl = (UILabel*)[cell.contentView viewWithTag: 10000];
NSManagedObject *device = [self.devices objectAtIndex:indexPath.row];
lbl.text = [device valueForKey:#"amount"];
return cell;
}
The problem is that each cells of tableview displays same value. Why is that so?
Following is my viewdDidLoad method,
- (void)viewDidLoad
{
segmentedControl = [[URBSegmentedControl alloc]initWithTitles:titles icons:icons];
NSError *Error = nil;
APIRequest *apiRequest = [[APIRequest alloc]init];
[apiRequest getPendingData];
NSManagedObjectContext *managedObjectContext = [self managedObjectContext];
NSFetchRequest *fetchRequest = [NSFetchRequest fetchRequestWithEntityName:#"PendingShipmentDetails"];
self.devices = [[managedObjectContext executeFetchRequest:fetchRequest error:nil] mutableCopy];
NSEntityDescription *entity = [NSEntityDescription entityForName:#"PendingShipmentDetails" inManagedObjectContext:managedObjectContext];
[fetchRequest setEntity:entity];
NSArray *fetchedObjects = [managedObjectContext executeFetchRequest:fetchRequest error:&Error];
amountArray = [[NSMutableArray alloc] init];
for (NSManagedObjectContext * info in fetchedObjects)
{
[amountArray addObject:[info valueForKey:#"amount"]];
}
segmentedControl.segmentBackgroundColor = [UIColor colorWithRed:86/255.0f green:199/255.0f blue:188/255.0f alpha:1];
[segmentedControl addTarget:self action:#selector(handleSelection:) forControlEvents:UIControlEventValueChanged];
NSLog(#"%#",self.devices);
self.completedOrdersTableView.hidden = YES;
[self.view addSubview:segmentedControl];
[super viewDidLoad];
}
Im fetching values over there and adding it to an array.
within viewDidLoad , it has unique set of datas but within cellForRowAtIndexPath, it has sameset of datas being repeated multiple times.

Answer 1

Thanks to Michaël Azevedo for helping me debug the issue. The way I debugged was, I tried logging indexpath.row and indexpath.section. I notices that, row is always 0 and section is dynamic (value changes).
In cellForRowAtIndexPath i was setting the values with reference to indexpath.row which is going to 0 always.
Then i changed my code as follows,
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
// Return the number of sections.
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [self.devices count];
}
so now the numberOfRowsInSection will not be zero anymore. Hence while accessing it, It wont be fetching the same set of value of multiple times.

Answer 2

I think the problem might be your array named "self.devices". All your label.text is coming from your device model. You can try printing self.devices to take a look at each object in your array.