tried to obtain the web lock from a thread other than the main thread or the web thread. This may be a result of calling to UIKit from a secondary thread. Crashing now...

tried to obtain the web lock from a thread other than the main thread or the web thread. This may be a result of calling to UIKit from a secondary thread. Crashing now...

스레드 안에서 > 스레드 또 호출하거나 , 웹의 자바스크립트를 사용할려고 하니까 나왔다...

스레드에서 메소드를 콜 할땐,

[self performSelectorOnMainThread:@selector(CardUpdate) withObject:NULL waitUntilDone:YES];

-(void)CardUpdate{

     

    if(cardnum ==@"" || cardexpmon ==@"" || cardexpyear ==@""){

         

        UIAlertView *alert = [[UIAlertView alloc] initWithTitle:nil message:@"UnKown Card" delegate:nil cancelButtonTitle:@"확인" otherButtonTitles: nil];

        [alert show];

        NSString* script = [NSString stringWithFormat:@"cardupdate('%@', '%@','%@');", @"", @"",@""];

        [_MainWebView stringByEvaluatingJavaScriptFromString:script];

         

    }else{

     

        NSString* script = [NSString stringWithFormat:@"cardupdate('%@', '%@','%@');", cardnum, cardexpmon,cardexpyear];

        [_MainWebView stringByEvaluatingJavaScriptFromString:script];

    }

     

}







이런식으로 써워야 한다.