ios – 通过故事板和xcode正确创建手册

我是xcode的新手，而我正在尝试开发一个基本上是嵌入式表视图的示例应用程序，它具有与 this类似的许多级别。我有一个plist来存储每个tableview的单元格。如果单元格没有孩子，那么我希望能够在单元格被按下后进入一个详细的视图。最终，我想要根据数据类型去不同的详细视图。为此，我从故事板创建了一个详细的视图，拖动我的视图控制器到我的详细视图，创建一个手动“推”segue，并标记segue“segue1”。

编辑：源代码here

接下来我填充我认为是这个工作的必要功能，这是调用[self performSegueWithIdentifier：@“segue1”sender：myString];其中myString是我选择的单元格的标题。

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    //Check the dictionary to see what cell was clicked
    NSDictionary *dict = [self.tableDataSource objectAtIndex:indexPath.row];
    NSString *myString = [dict objectForKey:@"Title"];
    NSDictionary *dictionary = [self.tableDataSource objectAtIndex:indexPath.row];

    NSArray *children = [dictionary objectForKey:@"Children"];

    //If there is no children,go to the detailed view
    if([children count] == 0)
    {
        [self performSegueWithIdentifier:@"segue1" sender:myString];

    }
    else{
        //Prepare to tableview.
        DrillDownViewController *rvController = [[DrillDownViewController alloc] initWithNibName:nil bundle:[NSBundle mainBundle]];

        //Increment the Current View
        rvController.CurrentLevel += 1;

        //Set the title;
        rvController.CurrentTitle = [dictionary objectForKey:@"Title"];

        //Push the new table view on the stack
        [self.navigationController pushViewController:rvController animated:YES];

        rvController.tableDataSource = children;

    }

}

最后，我打电话准备segue，寻找标记为segue1的segue。

-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
    if([[segue identifier] isEqualToString:@"segue1"])
    {
        DrillDownDetailController *dvController = [[segue destinationViewController] visibleViewController];
        //DrillDownDetailController *dvController = [[DrillDownDetailController alloc] initWithNibName:nil bundle:[NSBundle mainBundle]];
        [dvController setItemName:(NSString *)sender];
        [self.navigationController pushViewController:dvController animated:YES];
    }
}

我以为这可以工作，但是由于某些原因，每当代码达到[self performSegueWithIdentifier：@“segue1”sender：myString];它会发生错误

*****由于未捕获的异常’NSInvalidArgumentException’终止应用程序，原因：’Receiver()没有标识符’segue1”
*第一次调用堆栈：
(0x14b4022 0xeb4cd6 0xdf61b 0x3590 0xa85c5 0xa87fa 0x93d85d 0x1488936 0x14883d7 0x13eb790 0x13ead84 0x13eac9b 0x139d7d8 0x139d88a 0x17626 0x23ed 0x2355 0x1)
终止调用抛出异常(lldb)

我不知道为什么告诉我它在故事板和代码中已经定义时找不到segue1。

DrillDownViewController *rvController = [[DrillDownViewController alloc] initWithNibName:nil bundle:[NSBundle mainBundle]];

DrillDownViewController *rvController = [self.storyboard instantiateViewControllerWithIdentifier:@"TableView"];

-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
    if([[segue identifier] isEqualToString:@"segue1"])
    {
        dvController = [[segue destinationViewController] visibleViewController];
        [dvController setItemName:self->nameToSend];
    }
}

-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
    if([[segue identifier] isEqualToString:@"segue1"])
    {
        dvController = segue.destinationViewController;
        dvController.itemName = nameToSend;
    }
}

-(void) setItemName:(NSString *)itemName
{
    if(!itemName)
    {
        itemName = [[NSString alloc] initWithString:itemName];
    }
    label.text = itemName;
}

- (void)viewDidLoad
{
    [super viewDidLoad];

    label.text = self.itemName;
}