try to use rangeOfString to behave url for youtube video - ios

Question

I need the app recognize if it's a youtube video embed, then in-app webView
Here is the code I'm using now:
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType;
{
NSString *urlString = request.URL.absoluteString;
NSString *youtube;
youtube = #"youtube";
if ([urlString rangeOfString:youtube options: NSCaseInsensitiveSearch].location != NSNotFound){
return YES;
}
[[UIApplication sharedApplication] openURL:request.URL];
return NO;
}
That works in most cases because most youtube links are directly transferred as embedded video already on the webpage. However, I check if i choose a profile page or others from youtube, this will still open in-app, becuz my app doesn't have back button (buttons in html page). So any link that's not to a video will cause can't return.
I tried use #"youtube.com/watch" #"/watch?" #"watch?" as rangeOfString, but only youtube works.
For example:
This a youtube video url: data-url="http://youtube.com/watch?feature=player_detailpage&v=Ke1Y3P9D0Bc" (in-app view good)
dara-url="youtube.com" (fail, still in-app view)
I wonder either i stored string by wrong format, symbols not support in rangeOfString?
Or there can be another way like urlString rangeOfString:youtube && #"watch"
Thank you for this, really appreciate.

Answer 1

NSURL *myURL = [NSURL URLWithString:#"http://www.youtube.com/watch?feature=player_detailpage&v=Ke1Y3P9D0Bc"];
NSString *host = myURL.host;
NSString *path = myURL.path;
NSLog(#"%#", host); // Output: www.youtube.com
NSLog(#"%#", path); // Output: /watch
NSLog(#"%#", myURL.query); // Output: feature=player_detailpage&v=Ke1Y3P9D0Bc
if (NSMaxRange([host rangeOfString:#"youtube.com" options:(NSCaseInsensitiveSearch|NSBackwardsSearch)]) == host.length &&
[path.lowercaseString isEqualToString:#"/watch"]) {
NSLog(#"This is a youtube video.");
}

Answer 2

You can certainly use,
if ([urlString rangeOfString:youtube options: NSCaseInsensitiveSearch].location != NSNotFound && [urlString rangeOfString:#"watch" options: NSCaseInsensitiveSearch].location != NSNotFound)
Whether that will get you what you want, I don't know, but it should work as a valid if statement.