iphone - ios应用崩溃

Question

我的应用崩溃时遇到了问题。主根 Controller 是选项卡 Controller 。在选项卡 Controller 中，我有4个按钮，这些按钮具有连接到它们的导航 Controller 。在导航 Controller 内部，我有一个带有几个单元格的表 Controller 。单击单元格时，它将带您到 View Controller 。现在，当我单击单元格时，它将带我到 View Controller 。当我单击导航 Controller 上的后退箭头时，它带我回到表格 View ，这很棒，但是当我单击一个新单元格时，应用程序崩溃。每次我单击一个单元格，返回并单击另一个单元格，应用程序就会崩溃。我究竟做错了什么？我想我也很在乎我的所有发行。虽然不确定。

运行程序时出现错误。内容为:

Book Nav Controller (Medical How To's) has it 'NIB Name" property set to 'BookTableViewController.nib', but this view controller is not intended to have its view set in this manner.

我也在此代码上弃用setText:

cell.text = [breakdownArray objectAtIndex:row];

我将其更改为什么？

我的didSelectRowAtIndexPath代码也是:

NSInteger row = [indexPath row];
if (self.bookDetailViewController == nil); {
    BookDetailViewController *aBookDetail = [[BookDetailViewController alloc] initWithNibName:@"BookDetailView" bundle:nil];
    self.bookDetailViewController = aBookDetail;

    [aBookDetail release];

}

bookDetailViewController.title = [NSString stringWithFormat:@"%Breakdown" , [breakdownArray objectAtIndex:row]];

Surviving2012AppDelegate *delegate = [[UIApplication sharedApplication] delegate];
[delegate.breakdownNavController pushViewController:bookDetailViewController animated:YES];

[delegate release];

}

Answer 1

cell.text = [breakdownArray objectAtIndex:row];

应该:

cell.textLabel.text = [breakdownArray objectAtIndex:row];

bookDetailViewController.title = [NSString stringWithFormat:@"%Breakdown" , [breakdownArray objectAtIndex:row]];

应该:

bookDetailViewController.title = [NSString stringWithFormat:@"%@", [breakdownArray objectAtIndex:row]];

如果您是从tabBarController中的其中一个viewControllers调用此函数，则此代码为:

Surviving2012AppDelegate *delegate = [[UIApplication sharedApplication] delegate];
[delegate.breakdownNavController pushViewController:bookDetailViewController animated:YES];
[delegate release];

应该:

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

如果在那之后它仍然崩溃，那么您需要发布如何定义:

.h文件中的bookDetailViewController以及viewWillAppear和viewDidLoad方法的内容。