ios - 切换到其他视图会破坏应用程序 xcode

Question

我正在开发一个应用程序，但是当我从第一个视图切换到第二个视图（游戏级别）时。游戏中断：

@autoreleasepool {
        return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));
    }

并带有警报威胁 1：信号 SIGABRT。

我不知道为什么，在我的其他视图中，这段代码可以工作，但是当我想切换到这个视图时，它就崩溃了。我的切换代码是：

-(void)collision {

if (CGRectIntersectsRect(Redsquare.frame, Invisible.frame)) {
        Level2 *switchtosecondlevelchapter1 = [[Level2 alloc] initWithNibName:nil bundle:nil];

        [self presentModalViewController:switchtosecondlevelchapter1 animated:YES];
    }
}

我希望你能帮助我，我是新手。先谢谢了！

Answer 1

Is your nib name for Level2 literally "Level2"... in that case you can provide nil to initWithNibName: But also add break points and NSLog to debug and see where it is last called... for example you're literal presentModalViewController: code might be fine.... but your CGRectIntersectsRect might be... off.... Is everything initialized/non-zero Look at these different factors and reply as comment