0

现在几天我一直在努力使用 UISplitViewControllers,这是我的问题:我有一个主视图,声明如下

#import <UIKit/UIKit.h>
#import "DetailViewController.h"

@class DetailViewController;
@interface MasterViewController : UITableViewController {
    NSMutableArray *title, *subTitle;
    unsigned int quantity;
}

@property (strong, nonatomic) DetailViewController *detailViewController;
@end

在 master 的 .m 文件中,一切正常(我能够从 sqlite db 填充表并按行显示内容)。当涉及到一行并在右侧填充详细视图时,什么也不会发生。这是行选择:

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    MyObject itemFromDB;
    /* 

    ... DB stuff here ...

    */

    self.detailViewController.detailItem = itemFromDB;  
}

现在是 DetailViewController 实现:

@interface DetailViewController : UIViewController <UISplitViewControllerDelegate>
@property (strong, nonatomic) MyObject *detailItem;
@property (weak, nonatomic) IBOutlet UILabel *name, *phone;
@end

和细节的.m:

#import "DetailViewController.h"
@interface DetailViewController ()
- (void)configureView;
@end

@implementation DetailViewController

- (void)setDetailItem:(MyObject *)newItem
{
    if (_detailItem != newItem) {
        _detailItem = newItem;
        [self configureView];
    }
}

- (void)configureView
{
    if (self.detailItem) {
        self.name.text = [self.detailItem name];
        self.phone.text = [self.detailItem phone];
    }
}

- (void)viewDidLoad
{
    [super viewDidLoad];
    [self configureView];
}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
} 

简而言之:选择一行后,细节没有注意到任何变化。有什么帮助吗?

4

1 回答 1

3

你从来没有定义过 self.detailViewController。你应该做这个:

self.detailViewController = self.splitViewController.viewControllers[1];

于 2013-05-09T17:21:00.020 回答