Master Detail Application for iPad

Question

我正在使用XCode 4.5和ARC创建一个iPad版本的Master Detail Application。我有我的ipadmaster。h/。设置iPadDetailViewController.h/m(作为我的master)和iPadDetailViewController.h/m(作为我的detail)

我试图从iPadDetailViewController加载不同的视图控制器当用户点击/选择iPadMaster上的行。

我在iPadMaster上设置了这个。m:

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    iPadDetailViewController * DVC = [[iPadDetailViewController alloc]initWithNibName:nil bundle:nil];
    DVC.itemNumber = indexPath.row;
}

并在iPadDetailViewController上尝试这个愚蠢的特技。m on [viewDidLoad]:

switch(_itemNumber)
    {
        case 0:
        {
            //Detail row
            vc1 *viewController = [[vc1 alloc] init];
            [self presentViewController:viewController animated:YES completion:nil];
            break;
        }
        case 1:
        {
            //Report row
            vc2 *viewController = [[vc2 alloc] init];
            //viewController.somePassedInData = theDataToPass;
            [self presentViewController:viewController animated:YES completion:nil];
            break;
        }
        case 2:
        {
            //Report row
            vc3 *viewController = [[vc3 alloc] init];
            //viewController.somePassedInData = theDataToPass;
            [self presentViewController:viewController animated:YES completion:nil];
            break;
        }
        ...
        case 9:
        {
            //Report row
            vc9 *viewController = [[vc9 alloc] init];
            //viewController.somePassedInData = theDataToPass;
            [self presentViewController:viewController animated:YES completion:nil];
            break;
        }
        default:
        {
            break;
        }

在iPhone上，我只是在- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath中粘贴"开关盒"，但我对iPad环境感到困惑…

Answer 1

分屏视图控制器有一个属性viewControllers。索引为1的对象是detail控制器。你只需要创建一个viewControllers的可变副本，用你的新控制器替换索引1处的对象，并将该数组设置为拆分视图的arrayControllers。

NextController *next = [[NextController alloc] init..... // or however you get your new controller
NSMutableArray *mut = [self.splitViewController.viewControllers mutableCopy];
[mut replaceObjectAtIndex:1 withObject:next];
self.splitViewController.viewControllers = mut;