I have one UIWebView in my iphone app and I have to detect on click method whenever user will click on any hyperlink.
I want to call one method when user will click on hyper link I know about the method
-(BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType
but it will be detected whenever any link will be loaded whether user has clicked or not on hyperlink but I want to call method only when user will click on any method.
Please get me out of this issue.
-Thanks in advance.
You can check the UIWebViewNavigationType.
-(BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType
{
if (navigationType == UIWebViewNavigationTypeLinkClicked) {
NSLog("User tapped a link.");
}
}
See UIWebView Class Reference for more information.
Related
**Situation is like this，my webview load a base request url，when user clicked the html or anyother action，the webview will laod a new url. Can I get the webview changed events? If window.location.href can be worked well，and how？
-(BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType
this method will be performed every time you click the button of html
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType
{
//my code
}
Currently my above delegate method is called, once i touch inside in my webview.
So i want to know what is the difference between following 2 navigationtype: UIWebViewNavigationTypeOther & UIWebViewNavigationTypeLinkClicked.
Because some of the URL on selection provides navigation Type as UIWebViewNavigationTypeOther & some provide UIWebViewNavigationTypeLinkClicked.
From the apple document i cannot able to clear my self.
UIWebViewNavigationTypeLinkClicked happens if the user taps a <a href=""> style link, if the change is done from within Javascript (onclick event for example) UIWebViewNavigationTypeOther is used.
Furthermore UIWebViewNavigationTypeOther is used if you first load a page or you'll be redirected by a meta refresh or something
I am trying to build a simple app that uploads images to my site. I am using this tutorial:
http://www.youtube.com/watch?v=aQXaJO36I7Y
What I want to do instead of using a button from the app's interface I wan to use a button within a website in a webview. So I want a button to call the opening of the photo album to select a image to upload.
Basically I need a way for a javascript function to call a action in the app itself.
How can I do this?
You could just use a custom link, which you can then detect in the UIWebViewDelegate method.
- (BOOL) webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request
navigationType:(UIWebViewNavigationType)navigationType {
if (navigationType == UIWebViewNavigationTypeLinkClicked) {
NSString *rawURL = [[request URL] absoluteString];
if([rawURL isEqualToString:#"callImageLib://"]) {
[self methodeForImageLib];
}
return NO;
}
return YES;
}
If i understand it correctly you need to communicate iPHone Web application to call native iPhone application and visa versa. please check the following links.
http://blog.techno-barje.fr/post/2010/10/06/UIWebView-secrets-part3-How-to-properly-call-ObjectiveC-from-Javascript
http://iphoneincubator.com/blog/windows-views/how-to-inject-javascript-functions-into-a-uiwebview
hope these 2 link help to solve your issue.
how to retrieve a link from text view. When user click an link , i need to capture that link.
Any way to do that ?
Just implement -application:handleOpenURL: in your app delegate. Return NO to avoid opening the URL.
Just subclass UIApplication and override its -openURL: method, e.g.
-(BOOL)openURL:(NSURL*)theURL {
if (shouldOpenURL(theURL))
return [super openURL:theURL];
else
return NO;
}
You cannot detect clicks in regular UITextView. If you want that functionality, use UIWebView instead, and implement UIWebViewDelegate, so you can intercept clicks by implementing this method
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType
I have a UIWebView in my app which shows the clients webpage, however I would like to retain the user within the app if they choose to browse the webpage.
Can I prevent it breaking out to Safari when a link is clicked?
Try implementing UIWebViewDelegate's:
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType
HTH.