的iOS，無法委託viewDidLoad中

Question

之外我有這個appdelegate.h

​​

與.m文件

@synthesize name; 

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

    name=@"john"; 
    return YES; 
    } 

現在...我想從另一個控制器得到這個名字，如果我試圖把它裏面我的viewDidLoad方法，它的工作原理..

- (void)viewDidLoad 
{ 
    appDelegate *test= (appDelegate *)[[UIApplication sharedApplication] delegate]; 
    NSLog(@"%@", test.name); 
} 

，但如果我嘗試做同樣的事情在我的initWithNibName它只是沒有工作...

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil 
    { 
     appDelegate *test= (appDelegate *)[[UIApplication sharedApplication] delegate]; 
     NSLog(@"%@", test.name); 
    } 

任何人都可以幫我嗎？這個問題讓我發瘋......

Answer 1

如果你重寫-initWithNibName:，你需要返回一個類的實例（或self）; 請嘗試下面的代碼-initWithNibName:。它爲我工作。

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil 
{ 
    appDelegate *test= (appDelegate *)[[UIApplication sharedApplication] delegate]; 
    NSLog(@"%@", test.name); 

    if (self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]) { 

    } 
    return self; 
} 

我認爲這可能對您有用。