Get the Query Of a UIWebView URL - iphone

Question

Hey guys I'm trying to find a way to specifically grab the Query String out of the URL that my UIWebView currently has loaded up.
So for example:
www.google.com?page=235
I want to end up with a NSString with the text "page=235".
Or even better Page at a NSData Key of Title and 235 at a Key of ID.
Im basically trying to organise the Query String into useable data.
In my project I have a button:
[HTML appendString:#"<a href='didtap://goto?Page=56'>Post Comment</a>"];
That i access with checking the absolute URL to see if the button was fired.
Is there any way to profile the information the way i want to?

Answer 1

I create the demo what you want get which is describe further..
Following is the viewcontroller.h file code
#import <UIKit/UIKit.h>
#interface ViewController : UIViewController{
NSURL *Url;
}
#property(nonatomic,retain)IBOutlet UIWebView *webVctr;
#end
This may helping to solve your problem
Thanks
Following is the viewcontroller.m file code
#import "ViewController.h"
#interface ViewController ()
#end
#implementation ViewController
#synthesize webVctr = _webVctr;
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType {
NSLog(#"%#",request);
Url = [request URL];
// if ([[UrlParts objectAtIndex:(1)] isEqualToString:#"NeverGonnaFindMe"]) {
// CONVERT TO STRING AN CLEAN
NSString *urlResources = [Url resourceSpecifier];
urlResources = [urlResources stringByReplacingOccurrencesOfString:#"?" withString:#"/"];
// SEPORATE OUT THE URL ON THE /
NSArray *urlResourcesArray = [urlResources componentsSeparatedByString:#"/"];
// THE LAST OBJECT IN THE ARRAY
NSString *urlParamaters = [urlResourcesArray objectAtIndex:([urlResourcesArray count]-1)];
// SEPORATE OUT THE URL ON THE &
NSArray *urlParamatersArray = [urlParamaters componentsSeparatedByString:#"&"];
if([urlParamatersArray count] == 1) {
NSString *keyValue = [urlParamatersArray objectAtIndex:(0)];
NSArray *keyValueArray = [keyValue componentsSeparatedByString:#"="];
if([[keyValueArray objectAtIndex:(0)] isEqualToString:#"page"]) {
NSLog(#"%#",[keyValueArray objectAtIndex:1]);
}
[self dismissModalViewControllerAnimated:YES];
return NO;
}
return YES;
}
// ACTIVITY INDICATOR
- (void)webViewDidStartLoad:(UIWebView *)webView{
/// [_activityIndicator startAnimating];
NSLog(#"Resting to server");
}
- (void)webViewDidFinishLoad:(UIWebView *)webView{
// [_activityIndicator stopAnimating];
NSLog(#"Finish request server");
}
- (void)webView:(UIWebView *)webView didFailLoadWithError:(NSError *)error{
NSLog(#"Error");
}
- (void)viewDidLoad
{
[super viewDidLoad];
NSString *fullAuthUrlString =[[NSString alloc] initWithFormat:#"www.google.com?page=235"];
NSURL *authUrl = [NSURL URLWithString:fullAuthUrlString];
NSURLRequest *myRequest = [[NSURLRequest alloc] initWithURL:authUrl];
[self.webVctr loadRequest:myRequest];
}
- (void)viewDidUnload
{
[super viewDidUnload];
// Release any retained subviews of the main view.
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown);
}
#end

Answer 2

To get the query string, get the query string of a NSURL object.
NSURL *url = …;
NSString *queryString = url.query;
For more information, see Accessing the Parts of the URL in the NSURL class documentation.