iphone - 来自 Xcode 的选项卡式应用程序起点 shell 在 5.1/5.0 中不起作用

Question

当我使用 Xcode 版本 4.5.2 (4G2008a) 为通用应用程序 5.0 及更高版本创建新的“选项卡式应用程序”时，它在 6.0 模拟器上运行良好，但在 5.1 或 5.0 上运行良好。

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{   
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
    // Override point for customization after application launch.
    UIViewController *viewController1;
    UIViewController *viewController2;
    if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone) {
        viewController1 = [[FirstViewController alloc] initWithNibName:@"FirstViewController_iPhone" bundle:nil];
        viewController2 = [[SecondViewController alloc] initWithNibName:@"SecondViewController_iPhone" bundle:nil];
    } else {
        viewController1 = [[FirstViewController alloc] initWithNibName:@"FirstViewController_iPad" bundle:nil];
        viewController2 = [[SecondViewController alloc] initWithNibName:@"SecondViewController_iPad" bundle:nil];
    }

    self.tabBarController = [[UITabBarController alloc] init];
    **self.tabBarController.viewControllers = @[viewController1, viewController2];**
    self.window.rootViewController = self.tabBarController;
    [self.window makeKeyAndVisible];
    return YES;
}

这是断点捕获的地方 self.tabBarController.viewControllers = @[viewController1, viewController2];

我没有改变苹果设置的任何内容。我看过，但也许我在谷歌上搜索错误的东西。

Answer 1

Its because of the auto layout property in the xib files. Go to both of the xib files and in the right menu click the first tab at the top while the view is selected and un-tick the use auto layout text box.

Hope this Helps.

Sam