ios - 为什么我的 UIView 加载不出来？

Question

我将现有项目的应用程序委托(delegate)修改为默认为标准应用程序委托(delegate)，并使其在启动后将我的自定义 View Controller 的 View 添加到场景中:

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    // Override point for customization after application launch.
    SplashScreenController *controller = [[SplashScreenController alloc] init];
    [self.window addSubview:controller.view];
    return YES;
}

我不明白的是，为什么我的 View 没有显示？加载后屏幕总是全黑，因为我可以肯定地看到 View 确实加载了:

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view from its nib.
    NSLog(@"View did load.");
}

Answer 1

我很难理解您要做什么，但看起来您的意思是要设置窗口的 Root View Controller 。试试这个:

SplashScreenController *controller = [[SplashScreenController alloc] initWithNibName:@"theNibName" bundle:nil];            
[self.window setRootViewController:controller];