ios - UIActivityIndicator on UIWebView starts spinning on link from page-doesn't stop -


i'm using uiactivityindicator on uiwebview indicate page loading, , it's working fine. however, on pages, when click link navigate further down page, indicator starts spinning again , doesn't stop. happens after page has loaded correctly.

code: 

- (void)viewdidload {  [super viewdidload];  [self loadwebviewrequest];  self.back = [[uibarbuttonitem alloc] initwithimage:[uiimage imagenamed:@"backbutton"] style:uibarbuttonitemstyleplain target:self action:@selector(backbutton)];  self.forward = [[uibarbuttonitem alloc] initwithimage:[uiimage imagenamed:@"forwardbutton"] style:uibarbuttonitemstyleplain target:self action:@selector(forwardbutton)];  self.navigationitem.rightbarbuttonitems = [[nsarray alloc] initwithobjects:_forward, _back,   nil];  self.forward.enabled = no; self.back.enabled = no;   self.thebool = false;  self.webview.delegate = self; }  -(void) backbutton { [self.webview goback]; }  -(void) forwardbutton { [self.webview goforward];  }   -(void) webviewdidfinishload:(uiwebview *)webview { if (self.webview.cangoforward)     {         self.forward.enabled = yes;     } else     {         self.forward.enabled = no;     }   if (self.webview.cangoback)     {         self.back.enabled = yes;     } else     {         self.back.enabled = no;     }  self.refresh.enabled = yes;  [self.activityindicator stopanimating]; }  -(bool) webview:(uiwebview *)webview shouldstartloadwithrequest:(nsurlrequest *)request navigationtype:(uiwebviewnavigationtype)navigationtype { self.refresh.enabled = no; [self.activityindicator startanimating]; uibarbuttonitem *backbutton = [[uibarbuttonitem alloc] initwithtitle:@"reference" style:uibarbuttonitemstyleplain target:nil action:nil]; self.navigationitem.backbarbuttonitem = backbutton;  return yes; }  -(void) webview:(uiwebview *)webview didfailloadwitherror:(nserror *)error{  [self.activityindicator stopanimating]; self.refresh.enabled = yes; nslog(@"whoops");  }  -(void) loadwebviewrequest { nsurl *url = [[nsurl alloc] initwithstring:self.urlstring];  nsurlrequest *request = [[nsurlrequest alloc] initwithurl:url];  [self.webview loadrequest:request];  }

thanks


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