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我在辅助线程中执行我的功能，一旦我得到结果，我就会调用在主线程中弹出我的 ViewController 的函数。但我收到以下错误：

void WebThreadLockFromAnyThread(), 0x5c6dec0: 从主线程或web线程以外的线程获取web lock。不应从辅助线程调用 UIKit。.

我正在使用下面的代码：

-(IBAction)done{    
  if([self validateRegistrationDetails]){
    [NSThread detachNewThreadSelector:@selector(invokeWebService) toTarget:self withObject:nil];
  }
}

-(void) invokeWebService{
  NSAutoreleasePool *pool=[[NSAutoreleasePool alloc]init];
  NSString *url = [NSString stringWithFormat:@"%@%@action=1&userName=%@&eMail=%@&firstName=%@&lastName=%@&mobileNo=%@",kBaseURL,kRegisterFunction,userName.text,eMail.text,firstName.text,lastName.text,mobileNo.text]; 
  [ADCUtilities performSelectorOnMainThread:@selector(updateText:) withObject:@"Registering... "waitUntilDone:NO];
  [ADCUtilities performSelectorOnMainThread:@selector(showIndicator:) withObject:self.view waitUntilDone:NO];
  NSDictionary *tempDict = [webService makeAPICall:url];
  [NSThread sleepForTimeInterval:3];
  if(tempDict!=nil){
    NSString *tempLoginSuccess = [tempDict valueForKey:kLoginStatus] ;
    if([tempLoginSuccess isEqual:@"LoginSuccess"]){
      [ADCUtilities displayAlertView:NSLocalizedString(@"REG_SUCCESS",@"")];
      [self performSelectorOnMainThread:@selector(popViewController) withObject:nil waitUntilDone:NO];
    } else {
      [ADCUtilities performSelectorOnMainThread:@selector( dismissIndicator) withObject:nil waitUntilDone:NO];
      [ADCUtilities displayAlertView:NSLocalizedString(@"REG_FAILED",@"")];
    }
   } else {
      [ADCUtilities performSelectorOnMainThread:@selector( dismissIndicator) withObject:nil waitUntilDone:NO];
      [ADCUtilities displayAlertView:NSLocalizedString(@"REG_FAILED",@"")];     
   }
   [pool release];  
}

-(void)popViewController{       
  [self.navigationController popViewControllerAnimated:YES];    
}
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1 回答 1

3

我认为您的问题实际上是[ADCUtilities displayAlertView:NSLocalizedString(@"REG_SUCCESS",@"")]，我认为它显示了某种UIAlertView. 除了从主线程之外，您永远不应该访问任何 UIKit 类。

于 2010-04-30T15:57:35.457 回答