使用故事板不再是XIB文件

Question

另一个问题：

即使使用此代码：我仍然会收到错误

＆＃34;应用程序窗口应在应用程序启动结束时具有根视图控制器＆＃34;

    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
SliderGaloreViewController *sliderGaloreViewController = [[SliderGaloreViewController alloc] init];
self.window.rootViewController = sliderGaloreViewController;
[self.window makeKeyAndVisible];
return YES;

我现在决定使用故事板而不是许多XIB文件，我有两段代码给我SIGABRT错误。你能看看它们并说明如何解决这些错误。提前谢谢！

更新1： 顺便说一句，错误是：
由于未捕获的异常终止应用程序＆＃39; NSInternalInconsistencyException＆＃39;，原因：＆＃39; - [UIViewController _loadViewFromNibNamed：bundle：]加载了＆＃34; SliderGaloreViewController＆＃34;笔尖但未设置视图插座。＆＃39;

原因1（在appdelegate中）：

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:     (NSDictionary *)launchOptions
{
NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults];

if ([prefs objectForKey:@"PuzzlePicture"] == nil) {
    [prefs setBool:FALSE forKey:@"Refresh"];
    [prefs setInteger:0 forKey:@"PuzzlePicture"];
    [prefs setBool:TRUE forKey:@"CountMoves"];
    //[prefs setBool:TRUE forKey:@"Timer"];
    [prefs setInteger:1 forKey:@"PuzzleLayoutX"];
    [prefs setInteger:1 forKey:@"PuzzleLayoutY"];
}

self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
SliderGaloreViewController *sliderGaloreViewController = [[SliderGaloreViewController   alloc] initWithNibName:@"SliderGaloreViewController" bundle:nil];
self.window.rootViewController = sliderGaloreViewController;
[self.window makeKeyAndVisible];
return YES;
}

原因2（在Viewcontroller.m中）：

- (IBAction)showInfo:(id)sender
{
SliderGaloreFlipsideViewController *controller = [[SliderGaloreFlipsideViewController alloc] initWithNibName:@"SliderGaloreFlipsideViewController" bundle:nil];
controller.delegate = self;
controller.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
[self presentViewController:controller animated:YES completion:nil];
}

Answer 1

initWithNibName不再用于故事板，完全忘记了笔尖。

SliderGaloreFlipsideView是在XCode /

中设计时给出的storyboardId的标识符

- (BOOL)application:(UIApplication *)application
               didFinishLaunchingWithOptions:(NSDictionary *)launchOptions{
NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults];

if ([prefs objectForKey:@"PuzzlePicture"] == nil) {
    [prefs setBool:FALSE forKey:@"Refresh"];
    [prefs setInteger:0 forKey:@"PuzzlePicture"];
    [prefs setBool:TRUE forKey:@"CountMoves"];
    //[prefs setBool:TRUE forKey:@"Timer"];
    [prefs setInteger:1 forKey:@"PuzzleLayoutX"];
    [prefs setInteger:1 forKey:@"PuzzleLayoutY"];
}

self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];

UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];

SliderGaloreFlipsideViewController *sliderGaloreViewController = 
(SliderGaloreFlipsideViewController *)[storyboard 
      instantiateViewControllerWithIdentifier:@"SliderGaloreFlipsideView"];

[self.window.rootViewController presentViewController:sliderGaloreViewController 
                                             animated:NO 
                                           completion:nil];

return YES;
}

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如果您尝试设置根控制器，则删除所有代码并将其设置在故事板中：