iphone - webview delegate method is not fired in background process -


i developing 1 application.in using static library.and run app in background using below code

   -(ibaction)sendkeyvaluepair:(id)sender   {     [nsthread detachnewthreadselector:@selector(startthebackgroundjob) totarget:self   withobject:nil]; }  -(void)startthebackgroundjob  { nsautoreleasepool *pool = [[nsautoreleasepool alloc] init];  //create object library class , , release object.  [pool release];  }

and int library class created 1 webview object , add webview main class below 

           web=[[uiwebview alloc]init];             //web.delegate=self;             web.frame=cgrectmake(1, 1, 100,100);             [web loadhtmlstring:html_str baseurl:nil];             [main_view.view addsubview:web];             [html_str release];             [web release];

here problem if set delegate self app crashing.and if didn't set delegate methods not firing.and delegate methods implemented in library class only.i want set delegate self , run delegate methods in library class.how one.

add this

    [web setdelegate:your library class name instance];

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