ios - NSArrayM 插入对象 :atIndex:]: object cannot be nil'

Question

经过大量搜索，并尝试了一些关于 stackoverflow 的解决方案，我没有找到任何可以解决我的错误的答案:我有一个 UIViewcontroller，它的名字是 WorldViewController。在这个 UIViewcontroller 中，我初始化了一些 UIView。我想从一些 UIViews 修改一些依赖于 WorldViewController 的变量。现在我把这些行:

WorldViewController * World = [[WorldViewController alloc] init];

它给了我:

Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[__NSArrayM insertObject:atIndex:]: object cannot be nil'

那么，如何解决呢？可能是因为 WorldViewController 正在运行吗？那么，如何解决呢？

编辑:我的 View Controller 的初始化方法

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization

        World1 = [[UIView alloc] initWithFrame:CGRectMake(0.0, 0.0, 320.0, 480.0)];
        [World1 setBackgroundColor:[UIColor blackColor]];
        [self.view addSubview:World1];
        [World1 release];

        [self.view addSubview:ViewPig];
        [self.view addSubview:level1view];
        [self.view addSubview:level2view];
        [self.view addSubview:LoadView];
        [LoadView AnimPigLoadingWith:PigChargement];
        [LoadView AppearLabelLoading];
        [self.view addSubview:FondPauseGrise];
        [self.view addSubview:FondPause];
        [self.view addSubview:BoutonResume];
        [self.view addSubview:BoutonHome];
        [self performSelector:@selector(Chargement) withObject:nil afterDelay:0.5];
        [self performSelector:@selector(ViewAppears) withObject:nil afterDelay:5.5+2.5];
        [self performSelector:@selector(LabelPrevientDepartWithImage:) withObject:Trois afterDelay:9];
        [self performSelector:@selector(LabelPrevientDepartWithImage:) withObject:Deux afterDelay:10];
        [self performSelector:@selector(LabelPrevientDepartWithImage:) withObject:Un afterDelay:11];
        [self performSelector:@selector(LabelPrevientDepartWithImage:) withObject:Go afterDelay:12];
        [self performSelector:@selector(Lancement) withObject:nil afterDelay:(3)];
        [self performSelector:@selector(GestionMaps) withObject:nil afterDelay:(11+2)];
    }
    return self;
}

谢谢!

Answer 1

我遇到了类似的问题。我的错误是没有将我试图加载的 View 标记为初始 View Controller 。我的猜测是没有初始 View Controller 可以添加到数组中，因此该对象为零。我不确定这对回答您的问题有多好，但它对我有用。