Automaticallyadjustsscrollviewinsets Not Working

automaticallyAdjustsScrollViewInsets not working

I think that automaticallyAdjustsScrollViewInsets only works when your controllers view is a UIScrollView (a table view is one).

You're problem seems to be that your controller's view is a regular UIView and your UITableView is just a subview, so you'll have to either:

• Make the table view the "root" view.

• Adjust insets manually:

  UIEdgeInsets insets = UIEdgeInsetsMake(controller.topLayoutGuide.length,
                                         0.0,
                                         controller.bottomLayoutGuide.length,
                                         0.0);
  scrollView.contentInset = insets;
  

Edit:

Seems like the SDK is capable of adjusting some scroll views despite not being the controller's root view.

So far It works with UIScrollView's and UIWebView's scrollView when they are the subview at index 0.

Anyway this may change in future iOS releases, so you're safer adjusting insets yourself.

CollectionView AutomaticallyAdjustsScrollViewInsets not working properly

On ios 11, if you want to disable the feature what AutomaticallyAdjustsScrollViewInsets did before, we should use ContentInsetAdjustmentBehavior. Firstly set AutomaticallyAdjustsScrollViewInsets to false in the ViewDidLoad() event to adapt lower iOS versions. Then on iOS 11+ add the code below:

public override void ViewWillAppear(bool animated)
{
    base.ViewWillAppear(animated);

    if (!AutomaticallyAdjustsScrollViewInsets)
    {
        if (UIDevice.CurrentDevice.CheckSystemVersion(11, 0))
        {
            MyCollectionView.ContentInsetAdjustmentBehavior = UIScrollViewContentInsetAdjustmentBehavior.Never;
        }
    }
    else
    {
        if (UIDevice.CurrentDevice.CheckSystemVersion(11, 0))
        {
            MyCollectionView.ContentInsetAdjustmentBehavior = UIScrollViewContentInsetAdjustmentBehavior.Automatic;
        }
    }
}

At last you can set the CollectionView's ContentInset manually to fit your request.

automaticallyAdjustsScrollViewInsets' was deprecated in iOS 11.0

The default for this property is now true. If you need to set this, you will need to set it in the scrollview that would host the viewController and set its property contentInsetAdjustmentBehavior. Below is an example:

scrollView.contentInsetAdjustmentBehavior = .automatic

How does UIViewController's automaticallyAdjustsScrollViewInsets work anyway?

From what I know

automaticallyAdjustsScrollViewInsets

allows the view controller to adjust its scroll view insets in
response to the screen areas consumed by the status bar, navigation
bar, and toolbar or tab bar

• works on the view which is direct subview (someone says it must be
  the first subview) of the View Controller 's view
• this view must be a ScrollView subclass
• the View Controller is embedded in Navigation Controller or TabBar
  Controller
• edgesForExtendedLayout is UIEdgeRectTop (if you want the ScrollView
  subclass view to be behind the top bar), UIEdgeRectBottom (if you want
  the ScrollView subclass view to be behind the bottom bar)

The code below replicates what automaticallyAdjustsScrollViewInsets does when edgesForExtendedLayout = UIEdgeRectTop

self.scrollView.contentInset = UIEdgeInsetsMake(self.topLayoutGuide.length, 0, 0, 0);
self.scrollView.contentOffset = CGPointMake(0, -self.topLayoutGuide.length);

disable auto adjust uitableView inset

I found the perfect solution!

UITableView.appearance().contentInsetAdjustmentBehavior = .never

just add this code in UITableViewController. and strange adjust inset all gone!

Manually Trigger `automaticallyAdjustsScrollViewInsets` at a Certain Time

It's not an absolutely amazing one, but I found a solution that works.

Inserting a new child view controller isn't enough to trigger UINavigationController to automatically work out the appropriate contentInset values for any scroll views in the new child. BUT! You can force it to perform that calculation by doing something that would have required it anyway. For example, hiding and showing the navigation bar or toolbar.

- (void)insertViewController:(UIViewController *)viewController
{
    // Add the view to our view
    viewController.view.frame = self.view.bounds;
    [self.view addSubview:viewController.view];

    // Add the new controller as a child
    [self addChildViewController:viewController];
    [viewController didMoveToParentViewController:self];

    // Show and hide the toolbar to force the content inset calculation
    self.navigationController.toolbarHidden = YES;
    self.navigationController.toolbarHidden = NO;
}

I've tested it, and there appear to be no visual glitches by rapidly hiding either the navigation bar or toolbar, so this solution seems to be acceptable.

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