Autocomplete feature for UITextField in iPhone? - iphone

Question

I'm accomplishing the concept of AutoCompleteTextView in iPhone similar to we find when we go for safari..I'm doing it with the help of UITableView.But Im getting error "Program received signal SIGABRT" Could not understand where I m going wrong ..?
My array looks like this :
(
{
Name = "John";
},
{
Name = "Williams ";
},
{
Name = "Michael ";
},
{
Name = "Hillary ";
},
{
Name = "Jennifer ";
},
)
so I have to get the values of Name in cells of tableView..
- (void)searchAutocompleteEntriesWithSubstring:(NSString *)substring {
[autocompleteUrls removeAllObjects];
for(int i=0;i<[arr2 count];i++)
{
for(NSString *curString in [[arr2 objectAtIndex:i] valueForKey:#"Name"]) //error :Program recieved signal SIGABRT
{
NSRange substringRange = [curString rangeOfString:substring];
if (substringRange.location == 0)
{
[autocompleteUrls addObject:curString];
}
}
}
[autocompleteTableView reloadData];
}
- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string {
if( textField == txtcity)
{
[txtcity resignFirstResponder];
autocompleteTableView.hidden = NO;
NSString *substring = [NSString stringWithString:textField.text];
substring = [substring stringByReplacingCharactersInRange:range withString:string];
[self searchAutocompleteEntriesWithSubstring:substring];
return YES;
}
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger) section {
return autocompleteUrls.count;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
UITableViewCell *cell = nil;
static NSString *AutoCompleteRowIdentifier = #"AutoCompleteRowIdentifier";
cell = [tableView dequeueReusableCellWithIdentifier:AutoCompleteRowIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc]
initWithStyle:UITableViewCellStyleDefault reuseIdentifier:AutoCompleteRowIdentifier] autorelease];
}
cell.textLabel.text = [autocompleteUrls objectAtIndex:indexPath.row];
return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
UITableViewCell *selectedCell = [tableView cellForRowAtIndexPath:indexPath];
txtcity.text = selectedCell.textLabel.text;
}
I m getting error at this line : for(NSString *curString in [[arr2 objectAtIndex:i] valueForKey:#"Name"])
Where I m going wrong..? Any help would be appreciated..

Answer 1

Try:
for(NSString *curString in arr2)
or
for(int i=0;i<[arr2 count];i++)
{
NSString *curString = [[arr2 objectAtIndex:i] valueForKey:#"Name"]
curString = [curString lowercaseString];
substring = [substring lowercaseString];
if ([curString rangeOfString:substring].location == NSNotFound)
{}
else
{
[autocompleteUrls addObject:curString]
}
}

Answer 2

[[arr2 objectAtIndex:i] valueForKey:#"Name"] will return a string (a name), not an array. Therefore you don't need that for loop.
Just assign the name you're returning to the variable:
for(int i=0;i<[arr2 count];i++)
{
NSString *curString = [[arr2 objectAtIndex:i] valueForKey:#"Name"]
NSRange substringRange = [curString rangeOfString:substring];
if (substringRange.location == 0)
{
[autocompleteUrls addObject:curString];
}
}