Issue with UITableView - updating table values - xcode

Question

I am a newbie. I have written some code for UITable but I am unable to update table values after adding the values to the array. I'm using a tableview subclass. The code is as follows. Check the last function. Now how can I update my table values?
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
//#warning Potentially incomplete method implementation.
// Return the number of sections.
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
//#warning Incomplete method implementation.
// Return the number of rows in the section.
return [_phones count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier] autorelease];
}
HLPFoundPhones *p = (HLPFoundPhones *)[_phones objectAtIndex:indexPath.row];
NSString *subtitle = [NSString stringWithFormat:#"Found (%1.2f,%1.2f) on %#" ,[p loc].x, [p loc].y , [p foundDate]];
cell.textLabel.text = [p name];
cell.detailTextLabel.text = subtitle;
return cell;
}
- (void)insertNewObject
{
HLPPhonesAdd *view = [[HLPPhonesAdd alloc]initWithNibName:#"HLPPhonesAdd" bundle:nil];
[self.navigationController pushViewController:view animated:YES];
[view release];
}
- (void)updateTable:(CGPoint)loc name:(NSString *)_name{
HLPFoundPhones *a = [[HLPFoundPhones alloc]initWithLoc:loc name:_name];
[_phones addObject:a];
[phones reloadData];
}

Answer 1

call
[yourTableView reloadData];
in your updateTable Function..
- (void)updateTable:(CGPoint)loc name:(NSString *)_name{
HLPFoundPhones *a = [[HLPFoundPhones alloc]initWithLoc:loc name:_name];
[_phones addObject:a];
//give your tableView object instead of yourTableView
[yourTableView reloadData];
}

Answer 2

check value of _phone count and use in function
- (void)updateTable:(CGPoint)loc name:(NSString *)_name
{
HLPFoundPhones *a = [[HLPFoundPhones alloc]initWithLoc:loc name:_name];
[_phones addObject:a];
[table_name reloaddata];
}

Answer 3

Confirm the array _phones is allocated.
Then there will be problems if the [tableview reloadData] is called inside a thread.
So confirm the reloadData is called from the main thread.

Answer 4

First of all, your cell identifier looks to be same for all cells, which may confuse iOS which cell needs to be dequeued. So, keep your cell identifiers unique, something like below :
NSString *cellIdentifier = [NSString stringWithFormat:#"Cell-%d", indexPath.row];
then, after table view is first displayed, update your datasource and call:
[tableView reloadData];