Undeclared delegate and shouldStartLoadWithRequest

Question

i am newer to coding in general! I am trying to create a webview that doesnt allow navigation to viewers. I have most of the coding typed up, but i have two undeclared errors and i am not sure how to solve this issue.

What i am trying to do is create a webView, but i would like to make it where the viewer of the webView cant navigate to other pages. If he/she does attempt too it does not fulfill the request.So basically it stays specifically on one page.

If i just need declare them in a really simple way then please show me and help. Thank you.

The Errors are shown below:

#import "ViewController.h"

@interface ViewController()
<UIWebViewDelegate>

@end

@implementation ViewController
@synthesize webView;

- (void)viewDidLoad
{
[super viewDidLoad];
webview:delegate = nil;
NSURL *url = [NSURL URLWithString:@"https://twitter.com/u_bett"];
NSURLRequest *urlrequest = [NSURLRequest requestWithURL:url];
[webView loadRequest:urlrequest];

}
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request         navigationType:(UIWebViewNavigationType)navigationType
{
return NO;
}

What are you trying to do ? `webview.delegate = nil;` and the other one is completely wrong, you can't call a method like that. — Midhun MP, Dec 04 '13 at 16:27
What i am trying to do is obviously create a webView, but i would like to make it where the viewer of the webView cant navigate to other pages. If he does attempt too it does not fulfill the request.So basically it stays specifically on one page. — BettByteSquad, Dec 04 '13 at 16:29

Midhun MP · Accepted Answer · 2013-12-04T17:12:31.293

2

Your method contains lot of issues:

Change that like:

- (void)viewDidLoad
{
    [super viewDidLoad];
    webview.delegate = self;  
    NSURL *url = [NSURL URLWithString:@"https://twitter.com/u_bett"];    
    NSURLRequest *urlrequest = [NSURLRequest requestWithURL:url];
    [webView loadRequest:urlrequest];

}

And implement shouldStartLoadWithRequest: like:

- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType
{
    if(navigationType == UIWebViewNavigationTypeLinkClicked)
    {
        return NO;
    }
    return YES;
}

Check this tutorial for UIWebView implementation. I would like to suggest you to learn Objective C thoroughly before starting the development. (Some investment at this point will help you to save a lot of time in future)

edited Dec 04 '13 at 17:12

answered Dec 04 '13 at 16:33

Midhun MP

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I just did all of this and the undeclared identifier delegate error still shows. But the other is solved. what else should i do to fix the delegate error? – BettByteSquad Dec 04 '13 at 16:37
Did you add`` in your interface ? Also check the tutorial I provided in the answer – Midhun MP Dec 04 '13 at 16:40
I just inserted my interface and lower into the question. i did but possibly not correctly. – BettByteSquad Dec 04 '13 at 16:45
@user2988372: where did you declared the `webview` I didn't see that in your interface ? – Midhun MP Dec 04 '13 at 16:48
I just edited my exact code into the question. Thats what i have in the xcode now. The webview runs good. But im what im trying to do with the navigation to other cites with the viewer is my issue now. – BettByteSquad Dec 04 '13 at 16:52
@user2988372; are you using interface builder for connecting the UIWebView to your view ? – Midhun MP Dec 04 '13 at 16:56
@user2988372: remove this `webview:delegate = nil;` and add `webview.delegate = nil;` – Midhun MP Dec 04 '13 at 16:59
@user2988372: You are still using `webview:delegate = nil;` use `webview.delegate = nil;` instead – Midhun MP Dec 04 '13 at 17:01
My mistake i didnt notice the subtle change. That does it Thank You! – BettByteSquad Dec 04 '13 at 17:02
@user2988372: with pleasure, also notice that use `webview.delegate = self;` instead of `webview.delegate = nil;` else the delegate methods won't be triggered. – Midhun MP Dec 04 '13 at 17:04
I just tried changing it to self and it fails to load even the home page of the webview. – BettByteSquad Dec 04 '13 at 17:10
Yes it is loading now but you can still navigate all around twitter? – BettByteSquad Dec 04 '13 at 17:18

Undeclared delegate and shouldStartLoadWithRequest

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