CODEWITHSUNDEEP
iphoneobjective-cxcodeuisearchdisplaycontroller
Anthony
Anthony

Reputation: 658

Array out of bounds error when using UISearchDisplayController

I have a UISearchDisplayController on a UITableView. The UITableView grabs JSON data from a server, breaks it down, and an object class takes that data and creates objects. It adds the Objects to a Mutable array to then use as the datasource for the table.

There is also another Mutable array used as the 'filtered' objects.

It's declared like so:

self.filteredItems = [NSMutableArray arrayWithCapacity:[self.items count]];

When I try to search the table I get this error:

Terminating app due to uncaught exception 'NSRangeException', reason: '* -[__NSArrayM objectAtIndex:]: index 2 beyond bounds [0 .. 1]'

This is the code I'm using to do the filtering, which I found after going through a bunch of tutorials, I can't use NSPredicate because it seems the return function returns an NSArray, and I have an NSMutableArray, which I can not change because i'm not declaring the objects statically.

- (void)filterContentForSearchText:(NSString*)searchText scope:(NSString*)scope
{    
    /*
     Update the filtered array based on the search text and scope.
    */

    [self.filteredItems removeAllObjects];

    for (Update *update in items)
    {        
        if ([scope isEqualToString:@"Serial Number"]) {
            NSComparisonResult result = [[update Serial_Number] compare:searchText options:NSCaseInsensitiveSearch range:NSMakeRange(0, [searchText length])];
            if (result == NSOrderedSame){
                [filteredItems addObject:update];
            }
        } else if ([scope isEqualToString:@"Ticket Number"]) {
            NSComparisonResult result = [[update Ticket_Number] compare:searchText options:NSCaseInsensitiveSearch range:NSMakeRange(0, [searchText length])];
            if (result == NSOrderedSame){
                [filteredItems addObject:update];
            }
        } else if ([scope isEqualToString:@"Customer"]) {
            NSComparisonResult result = [[update Customer] compare:searchText options:NSCaseInsensitiveSearch range:NSMakeRange(0, [searchText length])];
            if (result == NSOrderedSame){
                [filteredItems addObject:update];
            }
        }
    }
}

Not too sure what I'm doing wrong, I've never tried to implement this control before.

I actually ran break points, I can see that the objects are getting added to the filtered array, but then suddenly it crashes.

If you need any other part of the code to help me please let me know.

Thank you!

Edit:

Here's the delegate methods:

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    // Return the number of rows in the section.
    if (updatesTableView == self.searchDisplayController.searchResultsTableView) {
        return [self.filteredItems count];
    } else  {
        return [self.items count];
    }
}


// Customize the appearance of table view cells.
- (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];
    }

    Update *update = nil;

    if (tableView == self.searchDisplayController.searchResultsTableView) {
        update = [filteredItems objectAtIndex:indexPath.row];
    } else {
        // Configure the cell...
        update = [items objectAtIndex:indexPath.row];
    }

    [[cell textLabel] setText:[update Serial_Number]];
    [[cell detailTextLabel] setText:[NSString stringWithFormat:@"Customer: %@", [update Customer]]];

    cell.textLabel.adjustsFontSizeToFitWidth = YES;
    cell.detailTextLabel.adjustsFontSizeToFitWidth = YES;
    cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
    return cell;    
}

The normal table displays just fine as well as their detail views.

Upvotes: 0

Views: 650

Answers (2)

Pradeep
Pradeep

Reputation: 563

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    // Return the number of rows in the section.
    if (tableView == self.searchDisplayController.searchResultsTableView) {
        return [self.filteredItems count];
    } else  {
        return [self.items count];
    }
}

Upvotes: 1

miwic
miwic

Reputation: 80

In your delegate methods you have in 'numberOfRows':

if (updatesTableView == self.searchDisplayController.searchResultsTableView) {

then in 'cellForRowAtIndexPath':

if (tableView == self.searchDisplayController.searchResultsTableView) {

You're comparing different tables for determining the number of rows and then which array to get the data from.

Upvotes: 1

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