iOS Global Variable (Data Sharing Troubleshoot)

[loon3y]

i have a global variable "prodTableArray" which is a barcode string that converts itself into an array so it can show the product number in the tableview. as sort of a shopping cart list.


but it pulls the barcode from the first view controller and it doesn't automatically show up in my tableview unless i rotate it, i also have a similar problem with with a UIImageView on another view controller except that i added a button to retrieve the image.

but i want to get rid of the button and do it automatically, is this possible?


heres my table code, how can it automatically update after each barcode scan, i know view willappear works but than the user is going to have to click on another view controller and click back to load the image.

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    ImageStrings* theDataObject = [self theImageClass];
    // Return the number of rows in the section.
    return [theDataObject.prodTableArray count];
}


- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
     ImageStrings* theDataObject = [self theImageClass];
    static NSString *CellIdentifier = @"Cell";
    
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    if (cell == nil) {
        cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
    }

    
    cell.textLabel.text = [theDataObject.prodTableArray objectAtIndex:[indexPath row]];
    

    
    return cell;
}

 

[admanimal]

Have you read the UITableView documentation? Do you understand exactly when those two methods are called?

 

[loon3y]

Have you read the UITableView documentation? Do you understand exactly when those two methods are called?

yes, thank you I've just read it and found the reloading method.

tyvm