UIWebView new window request isn't working - ios

Question

I have a code (objective-c) that should open a new window (viewcontroller) when a link with a certain string in a uiwebview is clicked. But it doesn't work.
Here's the code from the .m file:
-(BOOL)webView2:(UIWebView*)webView2 shouldStartLoadWithRequest:(NSURLRequest*)request navigationType:(UIWebViewNavigationType)navigationType {
NSURL *url = request.URL;
NSString *urlString = url.absoluteString;
//Check if special link
if ( [ urlString isEqualToString: #"http://google.com/" ] ) {
//Here present the new view controller
ViewController *ViewController8 = [[ViewController alloc] init];
[self presentViewController:ViewController8 animated:YES completion:nil];
return NO;
}
return YES;
}
The new viewcontroller subclass name is: ViewController8 and the UIWebView subclass is: webView2
Here's the code from the .h file:
#import <UIKit/UIKit.h>
#interface ViewController8 : UIViewController
#end
#interface ViewController : UIViewController{
IBOutlet UIScrollView *scrollView;
IBOutlet UIButton *openMenu;
int draw1;
}
- (IBAction)OpenMenu:(id)sender;
#property (retain, nonatomic) IBOutlet UIScrollView *scrollView;
#end
How do I fix it so a new window (viewcontroller) is opened when a link with a certain string in a uiwebview is clicked.

Answer 1

First, are you sure about your method signature for the shouldStartLoadWithRequest delegate method?
Did you really override the default method to have it call:
-(BOOL)webView2:(UIWebView*)webView2 shouldStartLoadWithRequest:(NSURLRequest*)request navigationType:(UIWebViewNavigationType)navigationType
???
Or should you instead be replacing "webview2" with "webView" there?
Even if you did, the naming convention would be very confusing.
The default implementation is for a class named "UIWebView", but the delegate method references "webView".
But in your case, you have a class called "webView2", and you're calling a delegate method that should be named:
-(BOOL)webView2:(webView2 *)webView2 shouldStartLoadWithRequest...
Doesn't look right at all.
Somehow I think the problem is mixed up in there. But maybe I'm wrong. So the second question is, have you set a breakpoint at the beginning of your shouldStartLoadWithRequest method to see if it ever gets called?
When you say it "doesn't work", what does that mean? How far does it get?
If it actually gets to the method, then perhaps the problem is that the URL it contains is formatted differently than the string you're looking for. Perhaps the trailing '/' isn't there or "www." is there.
Edit:
I would try something like this:
-(BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest*)request navigationType:(UIWebViewNavigationType)navigationType {
NSRange rangeOfGoogle = [request.URL.absoluteString rangeOfString:#"google.com"];
//Check if special link
if (rangeOfGoogle.location != NSNotFound) {
//Here present the new view controller
ViewController8 *viewController = [[ViewController8 alloc] initWithNibName:nil bundle:nil];
[self presentViewController:viewController animated:YES completion:nil];
return NO;
}
return YES;
}

Answer 2

I hope this will work for you
-(BOOL)webView:(UIWebView*)webView2 shouldStartLoadWithRequest:(NSURLRequest*)request navigationType:(UIWebViewNavigationType)navigationType {
if (navigationType == UIWebViewNavigationTypeLinkClicked) {
NSURL *url = request.URL;
NSString *urlString = url.absoluteString;
//Check if special link
if ( [ urlString isEqualToString: #"http://google.com/" ] ) {
//Here present the new view controller
ViewController *ViewController8 = [[ViewController alloc] init];
[self presentViewController:ViewController8 animated:YES completion:nil];
return NO;
}
}
return YES;
}
it works for me.