I'm trying to get my webview's current URL by using the following code in webViewDidStartLoad:
NSString *currentURL = _webview.request.URL.absoluteString;
I set a break point and I found out that currentURL is actually empty. I went through the Internet some saying that you won't be able to get the URL until the webpage has compeletely loaded. Is that true?
You are trying to get the current URL of the webpage. You just have to log the request object and that will give you the URL that you clicked on the webview.
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)**request** navigationType:(UIWebViewNavigationType)navigationType{
NSLog(#"request on invite -=- %#", request);
}
You just have to use that request object and this will provide you the URL that is clicked.
Try to implement the following feature
<UIWebViewDelegate>
webview.delegate = self;
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType{
return YES;
}
//get url from webView augment variable
- (void)webViewDidStartLoad:(UIWebView *)webView{
NSString *currentURL = webView.request.URL.absoluteString;
NSLog(#"url:%#",currentURL);
}
Related
This question already has an answer here:
Async request does not enter completion block
(1 answer)
Closed 5 years ago.
I want to use UIWebView in the console, so I define a delegate:
#interface webViewDelegate : NSObject <UIWebViewDelegate>
and write the protocol:
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType;
- (void)webViewDidStartLoad:(UIWebView *)webView;
- (void)webViewDidFinishLoad:(UIWebView *)webView;
- (void)webView:(UIWebView *)webView didFailLoadWithError:(NSError *)error;
and then loadRequest:
webView = [[UIWebView alloc] init];
webView.delegate = WVdelegate;
NSURL *htmlURL = [NSURL URLWithString:#"http://192.168.0.100"];
NSURLRequest *request = [NSURLRequest requestWithURL:htmlURL];
[webView loadRequest:request];
The problem is that this is a console, and I want to finish the console after the delegate has been invoked. What should I do to wait for the delegate after calling loadRequest?
The problem is that you have no runloop. Thus, when your code comes to an end, the command-line tool comes to an end; things do not persist long enough for the asynchronous code to run.
You can get HTML source in console:
- (void)webViewDidFinishLoad:(UIWebView *)webView
{
// Check here if still webview is loding the content
if (webView.isLoading)
return;
NSString *fullHtml = [webView stringByEvaluatingJavaScriptFromString:#"document.getElementsByTagName('html')[0].outerHTML"];
NSLog(#"html:%#", fullHtml);
}
How can I detect when a UIWebView changes a page? At the minute I am using
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType
but this not only detects the page change but also each request on the page.
I am trying to get it so that when the user clicks on a link it detects the click and then I can see what the url is that the user is trying to see.
Any ideas?
Thanks
So, you could interrogate navigationType ... defined as ...
enum {
UIWebViewNavigationTypeLinkClicked,
UIWebViewNavigationTypeFormSubmitted,
UIWebViewNavigationTypeBackForward,
UIWebViewNavigationTypeReload,
UIWebViewNavigationTypeFormResubmitted,
UIWebViewNavigationTypeOther
};
typedef NSUInteger UIWebViewNavigationType;
... and act accordingly, and/or look into the request for any particulars ...
NSURL *url = [request URL]; or NSURL *url = [[request URL] absoluteString];
I have UIWebview in my app and this is how i navigate some times in the application to URL:
NSURL *url = [NSURL URLWithString:#"http://mp3skull.com/mp3/nirvana.html"];
NSURLRequest* request = [NSURLRequest requestWithURL:url];
[webView loadRequest:request];
And sometimes i noticed that if i click on link the AppStore application is opened with some app.
It is possible to disable it?
In the method - (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType
You could do
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType
{
NSString *requestedURL = [[request URL] absoluteString];
// URL for opening itunes according to Apple docs is something like this #"http://itunes.apple.com
// But I do believe that it will be some sort of URL scheme that opens it specifically to the app on the app store.
// So without an example this is the best I can provide.
if([requestedURL isEqualToString:#"http://itunes.apple.com"]) {
// or if([requestedURL rangeOfString:#"itunes.apple.com"].location==0) {
// What is happening here is that if the request url that is being request is
// "http://mp3skull.com/mp3/nirvana.html" then we don't want to continue with the request so stop.
return NO;
}
// Otherwise for all other requests continue
return YES;
}
Remember you will need to set the delegate on your UIWebView as this method is a UIWebViewDelegate method - see Apple Documentation on UIWebViewDelegate for more information
Yes it happens, some times when you click on some links, the application will open another application.
Because, those links contain other app schemas. (link)
so, to disable opening such url-schemas, we have to detect them and not load them.
As appStore has "itunes.apple.com",
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType
{
NSString *requestedURL = [[request URL] absoluteString];
if([requestedURL rangeOfString:#"itunes.apple.com"].location==0) {
return NO;
}
return YES;
}
I´ve a small app with a UIWebView for web surfing in it. On some pages opens the Appstore for promotional purposes (that is annoying). How can i prevent that? Is there a special method? or just fake the browserid?
http://bjango.com/articles/ituneslinks/
here is the complete reference for link formation of the appstore, itunes.
from above reference link, apple.com is common for all kind of links.
So we can create regex or simply search string "apple.com" from url and avoid to load in webview.
If you wanna,use without regex following code may be help you :
-(BOOL) webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType
{
NSURL *currentURL = request.URL;
NSString *urlString = url.absoluteString;
NSRange range = [urlString rangeOfString:#"apple.com"];
if (range.location != NSNotFound)
return YES;
else
return NO;
}
Use UIWebViewDelegate method webView:shouldStartLoadWithRequest:navigationType: to detect what URLs are getting loaded in the webview. App store URLs usually contain itunes.apple.com or phobos.apple.com.
When you encounter such urls are clicked, you can return NO from the web view delegate method to stop loading the url.
Hope that helps!
Use the following UIWebView Delegate method for this :
-(BOOL) webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType
{
NSURL *currentURL = request.URL;
NSString *urlString = url.absoluteString;
NSRange range = [urlString rangeOfString:#"https://itunes.apple.com"]; // Change URL if other than this.
if (range.location != NSNotFound)
return YES;
else
return NO;
}
I am having difficulties gettin a webpage to load in my app. I think the issue has to do with it having back to back / in it at one point, but am not sure how to work around this. The URL I want it to visit is http://kaiopublications.org/content//iLuminateVol1.1/index.html
Here is my code:
- (void)viewWillAppear:(BOOL)animated {
NSString *html = _entry.articleUrl;
NSURL *url = [NSURL URLWithString:html];
NSLog(#"URL%#", html);
[_webView loadRequest:[NSURLRequest requestWithURL:url]];
}
The log for html comes back with the correct address, but if I run a log on url, it comes back null.
It must be something else or you may just need to wait. I tried it quickly myself and I can load the site with this URL in my test app. But I realize the site did load very slowly even on the simulator with a regular internet connection. If you try it on your device with a poor mobile bandwidth it maybe just takes very long.
One more thought. Is there any "noise" character at the end of the string?
Try this to see if it is that:
NSURL *url = [NSURL URLWithString:#"http://kaiopublications.org/content//iLuminateVol1.1/index.html"];
[_webView loadRequest:[NSURLRequest requestWithURL:url]];
Add some delegate methods to help you diagnose this. So you can display an activityIndicatorView while waiting for loads. It could be a slow site or it could be the delegate not setup.
#pragma mark - UIWebView delegate methods
- (void)webViewDidStartLoad:(UIWebView *)webView
{
if (!_activity.isAnimating)
[_activity startAnimating];
}
- (void)webViewDidFinishLoad:(UIWebView *)webView
{
[_activity stopAnimating];
}
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType
{
if (!_activity.isAnimating)
[_activity startAnimating];
return YES;
}