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POhow to see if a string contains a substring (objective-c)
 

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    <p>I want to see if a string, which is a title of a post on the apple rss news feed contains a substring, e.g. "Steve" or "Jobs". I organized the posts into a uitableview.</p> <p>So there WAS a post which had Steve or Jobs in its title so I used this to check:</p> <pre><code> if ([[entry title] localizedCaseInsensitiveCompare:@"Steve"] == NSOrderedSame || [[entry title] localizedCaseInsensitiveCompare: @"Jobs"] == NSOrderedSame) { NSLog(@"Comparism of Steve Jobs"); cell.imageView.image = [UIImage imageNamed:@"steve.png"]; } </code></pre> <p>But it was never called, entry is an RSSItem class which contains the title - the entry and its title is not my problem, I have checked. My comparism is the problem. How do i compare</p> <p>UPDATE!</p> <p>Ok here is the code:</p> <pre><code>NSRange range = [[[cell textLabel] text] rangeOfString:@"Steve" options:NSCaseInsensitiveSearch]; if (range.location != NSNotFound) { cell.imageView.image = [UIImage imageNamed:@"steve.png"]; } </code></pre> <p>I have tried it other peoples way also but SAME RESULT:</p> <p>some cells have their imageView as steve.png even though their title doesnt contain steve jobs. Weird??? I scroll down and when I go back up all the dequeued cells which are reallocated and initialized have the steve jobs picture. At starting when i open the app some cells which don't have steve in their title DO HAVE THE IMAGE, and then the above happens.</p> <p>My surrounding code IF NEEDED:</p> <pre><code> -(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"UITableViewCell"]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"UITableViewCell"] autorelease]; } tableView.autoresizingMask = 5; tableView.autoresizesSubviews = YES; cell.autoresizingMask = 5; cell.frame = CGRectMake(cell.frame.origin.x, cell.frame.origin.y, 20, 20); RSSItem *item = [[channel items] objectAtIndex:[indexPath row]]; [[cell textLabel] setText:[item title]]; NSMutableString *string = [[NSMutableString alloc] initWithString:[[cell textLabel] text]]; if (string.length &gt; 46) { cell.textLabel.numberOfLines = 2; UILineBreakMode lineBreak = UILineBreakModeClip; cell.textLabel.lineBreakMode = lineBreak; } [string release]; tableView.backgroundColor = [UIColor darkGrayColor]; cell.textLabel.font = [UIFont fontWithName:@"Arial Rounded MT Bold" size: 12.0]; cell.backgroundColor = [UIColor whiteColor]; NSRange range = [[[cell textLabel] text] rangeOfString:@"Steve" options:NSCaseInsensitiveSearch]; if (range.location != NSNotFound) { cell.imageView.image = [UIImage imageNamed:@"steve.png"]; } return cell; } </code></pre>
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    1. COPlease give the text of a few cells that falsely match "Steve".
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    2. COAnd are you removing the image from recycled cells that are *not* "Steve"? It doesn't look like it to me.
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    3. COText of a few cells that falsely match steve: statement of apple board directors 100 million OSX Lion downloads in a day
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