Question

我的应用程序有一个嵌入式导航控制器。我想启动一个不是初始视图或rootViewController的特定viewController。

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions: (NSDictionary *)launchOptions
{
NSDictionary *dictionary = [launchOptions objectForKey:UIApplicationLaunchOptionsRemoteNotificationKey];

if (dictionary != nil)
{
    UIViewController *rootController = (UIViewController *)self.window.rootViewController;
UIViewController *notificationController = [rootController.storyboard instantiateViewControllerWithIdentifier:@"NotificationsViewController"];
[rootController presentViewController:notificationController animated:NO completion:^{

}];
 }
}

我知道我必须在这里输入代码，但我不确定我是如何编码的。有人可以帮忙吗？我收到错误代码：

Warning: Attempt to present <NotificationsViewController: 0x176883a0> on <SWRevealViewController: 0x17683750> whose view is not in the window hierarchy!

SWRevealViewController是我的侧边栏视图库。我的猜测是我的＆＃34; root＆＃34;不是我认为的。

如果我想将viewControllerX设置为我的根视图，我该如何实现？

Answer 1

您应该首先初始化rootViewController。

self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];    
YourViewControllerX * viewControllerX = [[YourViewControllerX alloc] init];
self.window.rootViewController = viewControllerX;
[self.window makeKeyAndVisible];

Answer 2

试

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions: (NSDictionary *)launchOptions{
    [self.window addSubview:self.window.rootViewController.view];
    [self.window makeKeyAndVisible];
    NSDictionary *dictionary = [launchOptions objectForKey:UIApplicationLaunchOptionsRemoteNotificationKey];
    if (dictionary != nil){
        ...
    }
}

当我想从推送通知启动时，如何处理rootViews

2 个答案: