Question

我使用的是用于显示个人和个人资料详情的网络服务，但我不知道如何将数据从网络服务显示到标签。我使用Web服务进行登录验证，代码如下

 -(IBAction)login:(id)sender
  {
     NSString *username=userName.text;
     NSString *password=passWord.text;
     if ([username length]!=0&&[password length]!=0)
     {
         NSString *link=[NSStringstringWithFormat:@"http://www.abcd.com/XXX/YYY/Login.ashx/?Username=%@&Password=%@",username,password];
         NSURL *URLGet= [NSURL URLWithString:link];
         NSData* data = [NSData dataWithContentsOfURL:URLGet]; 
         NSError* error;
         XYZ Return array = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingAllowFragments error:&error];
     if ([jasonReturnArray  isEqual: @"UserId 4"]) 
     { 
         Connections *view2=[[Connections alloc]initWithNibName:nil bundle:nil]; 
         view2.modalTransitionStyle= UIModalTransitionStyleFlipHorizontal;
         [self presentViewController:view2 animated:NO completion:nil]; 
         NSLog(@"%@",jasonReturnArray); 
     } 
     else 
     { 
         UIAlertView* alert=[[UIAlertView alloc] initWithTitle:@"ERROR !!!!!!"message:@"Wrong Details" delegate:self cancelButtonTitle:@"Ok"otherButtonTitles: nil];
         [[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:NO];
         NSLog(@"%@",jasonReturnArray); 
         [alert show]; 
     }
 }
 else 
 {
 UIAlertView* alert=[[UIAlertView alloc] initWithTitle:@"ERROR !!!!!!"
 message:@"Wrong Details" delegate:self cancelButtonTitle:@"Ok" otherButtonTitles: nil];
 [[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:NO]; 
 NSLog(@"%@",jasonReturnArray);
 [alert show]; 
} 
}

它工作正常，但我怀疑是

如何将数据从json网络服务显示到我设计的标签

Answer 1

创建UILabel的IBOutlet，然后将标签的文本值设置为以下

for (NSString * singleStringObject in jasonReturnArray)
    {
        yourLabel.text=[yourLabel.text stringByAppendingString:singleStringObject];
    }

如果是单个字符串，您只需设置yourLabel的文本而不进行任何循环。

xcode显示来自json Web服务的数据

1 个答案: