setBackgroundColor崩潰時的loadView實施了的ViewController用於的UITabBarController

Question

我有其在appDelegate.m用作

self.window=[[UIWindow alloc ]initWithFrame:[[UIScreen mainScreen]bounds]]; 
    UITabBarController *baseTab=[[UITabBarController alloc] init]; 
    self.feedViewController=[[FeedViewController alloc] init]; 
self.favViewController=[[FavViewController alloc] init]; 
    [baseTab.tabBar setTintColor:[UIColor yellowColor] ]; 
    [baseTab setViewControllers:@[self.feedViewController,self.favViewController]animated:YES]; 

內部feedViewController的代碼發佈（下面剪斷代碼）的tabBarController 一部分的視圖控制器下面，應用程序崩潰是解決當我從下面的執行刪除的loadView

-(id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil 
{ 
    self=[super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; 
    if(self) 
    { 
     [self setTitle:@"Feed"]; 


    } 
    return self; 
} 
- (void)viewDidLoad { 
    [super viewDidLoad]; 
    // Do any additional setup after loading the view. 

    [self.view setBackgroundColor:[UIColor blueColor]]; 
} 

- (void)didReceiveMemoryWarning { 
    [super didReceiveMemoryWarning]; 
    // Dispose of any resources that can be recreated. 
} 

-(void)loadView 
{ 
} 

請幫我理解爲什麼會發生這種情況。

Answer 1

調用加載視圖

-(void)loadView { [super loadView]; } 

希望這會幫助你超級方法，好運