ios - 启动画面 iOS 后黑屏

Question

在做一个高级项目时，我的应用最近开始在启动画面后只加载黑屏。我没有使用 Storyboard。我一直在寻找解决这个问题的方法，但似乎无法使其他解决方案适应我的项目。我的 [github] ( https://github.com/cleif/Hastings/tree/Fixed ) 在这里有最新版本。下面是我的 AppDelegate.h & .m 文件中的代码。

.h

#import <UIKit/UIKit.h>
#import "IIViewDeckController.h"
#import "MenuViewController.h"
#import "HomeViewController.h"
#import "AboutViewController.h"
#import "AthleticsViewController.h"
#import "BroncoBoardViewController.h"
#import "ContactsTableViewController.h"
#import "MapViewController.h"

@interface AppDelegate : UIResponder <UIApplicationDelegate>
@property (strong, nonatomic) UIWindow *window;
@property (retain, nonatomic) UIViewController *menuViewController;
@property (retain, nonatomic) UIViewController *rootViewController;

@end

.m

#import "AppDelegate.h"

@implementation AppDelegate

@synthesize menuViewController = _menuViewController;

- (IIViewDeckController*) initializeMainViewControllers {

UIViewController *menuViewController      = [[MenuViewController alloc] init];
UIViewController *rootViewController      = [[HomeViewController alloc] initWithNibName:@"HomeViewController" bundle:nil];

IIViewDeckController* deckController      = [[IIViewDeckController alloc] initWithCenterViewController:[[UINavigationController alloc] initWithRootViewController:rootViewController]
                                                                                    leftViewController:menuViewController];

return deckController;
}

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

IIViewDeckController* deckController    = [self initializeMainViewControllers];

self.menuViewController                 = deckController.leftController;
self.rootViewController                 = deckController.centerController;

self.window.rootViewController          = deckController;
[self.window makeKeyAndVisible];

return YES;
}

@end

如有任何建议，我们将不胜感激。

Answer 1

我得到了你的代码并在下面添加了一行 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions 现在工作正常

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

所以你的 didFinishLaunchingWithOptions 方法必须是这样的

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

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

IIViewDeckController* deckController    = [self initializeMainViewControllers];

self.menuViewController                 = deckController.leftController;
self.rootViewController                 = deckController.centerController;

self.window.rootViewController          = deckController;
[self.window makeKeyAndVisible];

return YES;
}