objective-c - 为什么我的导航栏在我的状态栏下面？

Question

http://www.irovr.com/stackOverflow/overlap.png

- (void)viewDidLoad {
        [super viewDidLoad];
        [self setWantsFullScreenLayout:YES];
        [mainScrollView addGestureRecognizer:[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(onMainScrollTap:)]];
    }

- (void)onMainScrollTap:(id)sender {
    if(self.navigationController.navigationBar.hidden){
        [self.navigationController setNavigationBarHidden:NO animated:YES];
        [self.navigationController setToolbarHidden:NO animated:NO];
        [[UIApplication sharedApplication] setStatusBarHidden:NO withAnimation:UIStatusBarAnimationFade];
    }else{
        [self.navigationController setNavigationBarHidden:YES animated:YES];
        [self.navigationController setToolbarHidden:YES animated:YES];
        [[UIApplication sharedApplication] setStatusBarHidden:YES withAnimation:UIStatusBarAnimationFade];
    }
}

- (void)viewWillAppear:(BOOL)animated {
    [super viewWillAppear:animated];

    [[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleBlackTranslucent];
    [[UIApplication sharedApplication] setStatusBarHidden:YES withAnimation:UIStatusBarAnimationFade];

    self.navigationController.navigationBar.translucent = YES;
    self.navigationController.toolbar.translucent = YES;
}

- (void)viewDidAppear:(BOOL)animated {
    [super viewDidAppear:animated];
    [self.navigationController setNavigationBarHidden:YES animated:YES];
    [self.navigationController setToolbarHidden:YES animated:YES];
}

- (void)viewWillDisappear:(BOOL)animated {
    [super viewWillDisappear:animated];
    [[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleDefault];
    [[UIApplication sharedApplication] setStatusBarHidden:NO withAnimation:UIStatusBarAnimationFade];
    self.navigationController.navigationBar.translucent = NO;
    self.navigationController.toolbar.translucent = NO;
    [self.navigationController setNavigationBarHidden:NO animated:YES];
    [self.navigationController setToolbarHidden:YES animated:NO];
}

Answer 1

好像是同时隐藏状态栏和导航栏导致了这个问题。我能够通过使用 performSelector:withObject:afterDelay 隐藏/显示导航栏来解决它，即使延迟为 0