Question

我在辅助线程中执行我的功能，一旦得到结果，我调用在主线程中弹出我的ViewController的函数。但是我收到以下错误：

void WebThreadLockFromAnyThread（），0x5c6dec0：从主线程或Web线程以外的线程获取Web锁定。不应该从辅助线程调用UIKit。。

我正在使用以下代码：

-(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];    
}

Answer 1

我认为您的问题实际上是[ADCUtilities displayAlertView:NSLocalizedString(@"REG_SUCCESS",@"")]，我假设它显示某种UIAlertView。除了主线程之外，你永远不应该访问任何UIKit类。

从辅助线程在主线程上调用UIPopoverViewController

1 个答案: