iOS 7 UIViewController（带导航栏）不会插入UIScrollView

Question

I've got a UINavigationController with a UIViewController showing a navigation bar.

I've specifically set [self setAutomaticallyAdjustsScrollViewInsets:YES]; , though this should be YES by default anyway.

I add a UIScrollView:

self.scrollView = [[UIScrollView alloc] initWithFrame:self.view.bounds];
[self.view addSubview:self.scrollView];

However, the UIScrollView's contentInset is {0, 0, 0, 0} , so I am wondering why it doesn't inherit the content inset from the view controller as the documentation states it would.

If I add subviews to the scroll view and set their Y to be self.scrollView.contentInset.top they don't appear below the navigation bar, which is what I am expected.

What am I doing wrong here? It works fine if you start out with a UITableViewController since it correctly inherits the contentInset from the view controller.

Thanks!

Answer 1

它调整滚动视图边界，而不是内容插入。

Answer 2

self.view = self.scrollView;

Works fine for me. Tested with UIWebview:

- (void)viewDidLoad
{
    [super viewDidLoad];
    self.view = self.webView;
}