Question

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（我可以从sqlite db填充表并在行中显示内容）。当选择一行并填充右侧的详细视图时，没有任何反应。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

细节是.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];
}

简单来说：在选择行之后，细节没有注意到任何变化。有什么帮助吗？

Answer 1

你从未定义过self.detailViewController。你应该这样做：

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

uisplitviewcontroller：将选定的行从master传递给detail

1 个答案: