How to delete that rows, when i get text from URL?

Question

i try to get some text from an URL and put it out in a UITextView. Thats my code in the ViewController:

NSString *urlString = @"http:/...";
NSError  *error     = nil;
NSData   *dataURL   = [NSData dataWithContentsOfURL:[NSURL URLWithString:urlString] options:kNilOptions error:&error];

if (error)
    NSLog(@"%s: dataWithContentsOfURL error: %@", __FUNCTION__, error);
else
{
    NSString *result = [[NSString alloc] initWithData:dataURL encoding:NSUTF8StringEncoding];
    NSLog(@"%s: result = %@", __FUNCTION__, result);

    // if you were updating a label with an `IBOutlet` called `resultLabel`, you'd do something like:

    self.mytextview.text = result;
}

Now the simulator shows that text in my view:

Sorry, the text is german :)

Now how can I hide or delete that html, head, body etc.?

Answer 1

It displays like this because you are downloading the content of that PHP file which is in HTML format.

You can create a method to find & delete each HTML tag between "<" and ">"

- (NSString*)stringByRemovingHTMLtags:(NSString*)string {
  NSRange range;
  while ((range = [string rangeOfString:@"<[^>]+>" options:NSRegularExpressionSearch]).location != NSNotFound)
    string = [string stringByReplacingCharactersInRange:range withString:@""];
  return string;
}

Then set your text in the UITextView like this:

 self.mytextview.text = [self stringByRemovingHTMLtags:result];

---

EDIT: In order to get the content of the <p> tag use this method:

- (NSString*)getPtagContentFromString:(NSString*)htmlString {
    NSRange startRange = [htmlString rangeOfString:@"<p>"];
    if (startRange.location != NSNotFound) {
        NSRange targetRange;
        targetRange.location = startRange.location + startRange.length;
        targetRange.length = [htmlString length] - targetRange.location;
        NSRange endRange = [htmlString rangeOfString:@"</p>" options:0 range:targetRange];
        if (endRange.location != NSNotFound) {
            targetRange.length = endRange.location - targetRange.location;
            return [htmlString substringWithRange:targetRange];
        }
    }
    return nil;
}

Then set your text in the UITextView like this:

 self.mytextview.text = [self getPtagContentFromString:result];