Question

我试图了解uitable视图并实现它并能够从nsArray中将数据填充到行中。我已经创建了一个NextViewController，它包含一个动态标签，它将从SimpleTable类接收inpur / text。对于ex，在简单的表视图类中，我有包含内容的行（请参阅代码）：

**My SimpleViewController.m**  
 #import "SimpleTableViewController.h"

 #import "NextViewController.h"

@implementation SimpleTableViewController


- (void)viewDidLoad {


    arryData = [[NSArray alloc] initWithObjects:@"iPhone",@"iPod",@"MacBook",@"MacBook Pro",nil];
self.title = @"Simple Table Exmaple";/**/NOT ABLE TO SET TITLE.WHY?????Please guide how to use NSlog here**

    [super viewDidLoad];
}

***//And on selection of any row i want to navigate to next view controller class***
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    NextViewController *nextController = [[NextViewController alloc] initWithNibName:@"NextViewController" bundle:nil];

    [self.navigationController pushViewController:nextController animated:YES];

    [nextController changeProductText:[arryData objectAtIndex:indexPath.row]];
}

@end


**My NextViewController.h**

    @interface NextViewController : UIViewController {

    IBOutlet UILabel *lblProductTxt;
}
- (IBAction) changeProductText:(NSString *)str;


@end


**my NextViewController.m**

//posted only important part of code where i feel may be an issue

    - (IBAction) changeProductText:(NSString *)str{
    lblProductTxt.text = str;
}  @end

我已经正确检查了IB并且连接正确。请帮助我。没有得到我错的地方？

Answer 1

确保self.navigationController具有有效值。在pushViewController调用之前添加它：

  NSLog(@" self.navigationController  0x%x", self.navigationController);

无法设置标题并通过单击uitableview中的相应行导航到下一个视图

1 个答案: