ios - How to append javascript with HTML content?

问题

I'm trying to get access token,I'm following this link to get that,but some condition fails,I think am not properly append the javascript with HTML content.

- (void)connectionDidFinishLoading:(NSURLConnection *)connection
{
if(_data)
{
   NSString* content = [[NSString alloc] initWithData:_data
                                              encoding:NSUTF8StringEncoding];       
    [_data release];
    _data = nil;        
NSString *jsString = @"<script type='text/javascript'>\
    window.external =\
    {\
    'Notify': function(s) { document.location = 'acs://settoken?token=' + s; },\
    'notify': function(s) { document.location = 'acs://settoken?token=' + s; }\
    }\
    </script>";

content = [jsString stringByAppendingString:content];                  
[webView loadHTMLString:content baseURL:_url];
}
}

- (BOOL)webView:(UIWebView *)webView
shouldStartLoadWithRequest:(NSURLRequest *)request
navigationType:(UIWebViewNavigationType)navigationType
{
if(_url)
{           
    if([_url isEqual:[request URL]])
    {
        return YES;
    }       
    [_url release];
}
     //Here am getting http://LoginSuccess.aspx
_url = [[request URL] retain];
NSString* scheme = [_url scheme];//Here am getting http

//So here condition fails

if([scheme isEqualToString:@"acs"])
{
    // parse the JSON URL parameter into a dictionary
    _url = [NSURL URLWithString:@"https://converse.accesscontrol.windows"];
    NSDictionary* pairs = [self parsePairs:[_url absoluteString]];
    if(pairs)
    {
        WACloudAccessToken* accessToken;
        accessToken = [[WACloudAccessToken alloc] initWithDictionary:pairs];
        //[WACloudAccessControlClient settoken:accessToken];

        [self dismissModalViewControllerAnimated:YES];
    }       
    return NO;
}

[NSURLConnection connectionWithRequest:request delegate:self];

return NO;

}

Any ideas? Thanks in advance.

回答1:

I´m not sure if i unterstand exactly what you´re trying to do, but I assume

[UIWebView stringByEvaluatingJavaScriptFromString:@"yourJavaString"];

could help. I use it to perform an JavaScript based Loginmechanism in one of my projects.

See the Apple doc here .

You have to use stringByEvaluatingJavaScriptFromString AFTER WebView has loaded.

来源：https://stackoverflow.com/questions/16418213/ios-how-to-append-javascript-with-html-content

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