I have subclassed UINavigationBar and customised the height of navigation-bar. Now it has 108pt height. But in all the screens, I am having the top area of tableview/scrollview behind the custom navigation-bar. I have tried extend edges under top bar, but it only move 64pt.
Is there any way to move all the contents below the custom navigation bar, without modifying top constraint or setting content insets of every screen?
Did you try -
automaticallyadjustsscrollviewinsets = false
This can be done from storyboard as well as from code.
Also, try setting your navigation bar to opaque.
Hope this helps.
First of all i would avoid to change the height of the apple navigationBar. This can cause some more problems. As you can see.
Anyway you could change the contentInset of the tableView.
tableView.contentInset = UIEdgeInsets(top: HEIGHTOFNAVIGATIONBAR - ADDEDHEIGHT, left: 0, bottom: 0, right: 0)
Related
I am experiencing issues with setting contentInset on a tableView behaving inconsistently, depending on when it is called. I am using the following:
let edgeInsets = UIEdgeInsets(top: 52, left: 0, bottom: 0, right: 0)
tableView.contentInset = edgeInsets
tableView.scrollIndicatorInsets = edgeInsets
The top value is hard set to 52 there for testing, but in practice will be calculated from another view.
I am doing this because I need to have a view pinned to the top of a table view controller.
The behaviour I am experiencing is that if I use that code in the viewDidLoad or viewWillAppear functions, it works as I would expect. The tableView is below the pinned view and scrolled to its top (so all its content is visible). However, at that point, the pinned view has not been laid out, and its height is 0, so I can't use it to correctly set the top of the content inset (hence the hard 52).
If I use the above code from the viewDidLayoutSubviews function, which is where I have had it the whole time, it does not have the same results. The insets are actually set, but the tableView is also scrolled that much down, hiding its top rows behind the pinned view. I can then scroll up to see the top cells, and the tableView is then inset under the header, but it shouldn't start scrolled like that, and I have no idea why it is.
I am currently working on an iPhone App. I now have a problem with the top spacing inset of a UITableView. See this screenshot:
There should be no space between the table view cells and the buttons.
I do not know how to fix this. The UITableView is embedded in a ContainerView like this:
I think I got the container view constraints right. Top Space to Chapter Button is set to 0.
I tried to change some settings of the table view controller in storyboard. For example the Adjust Scroll View Insets. However it does not change anything when I disable that.
I also tried to set the TableView insets directly in the code in viewDidLoad():
tableView.contentInset = UIEdgeInsets(top: 0, left: 0, bottom: 0, right: 0)
However this also did not fix it.
Can anyone help? I have no idea where to look.
This can be solved by disabling auto adjustment of scroll view insets. However this setting has to be applied to the ViewController which contains the ContainerView (with the UITableView inside of it). It does not work when applied to the UITableView itself.
This can be done via Storyboard:
Or via code in viewDidLoad(): self.automaticallyAdjustsScrollViewInsets = false
Since iOS 15 there's a new parameter which can introduce a top gap when using a section header. This can be removed with the following:
if #available(iOS 15, *) {
tableView.sectionHeaderTopPadding = 0
}
Try this Hope this work.
hide View which contains the ContainerView.
self.automaticallyAdjustsScrollViewInsets = NO
Sorry the question sounds a bit confusing. I have two buttons overlapping my table view at the bottom, so if the table view scrolls "normal" the last row is partially hidden by these buttons. That's why I want to allow scrolling the table like the height of one row further down, so the last row is on top of these two buttons. How can I achieve this?
Adjust the content insets of the table view.
For instance, if your buttons are 50 points in height and your table's frame is the full window, you could set your table to snap to the top of your buttons like this:
tableView.contentInset = UIEdgeInsetsMake(0, 0, 50, 0);
Note: In iOS 7+ view controllers have a property automaticallyAdjustsScrollViewInsets that is set to YES by default. When this property is set to YES, the contentInsets you set manually may be overridden. Assuming you have a nav bar of some kind that you want to scroll under, you can set your top edge inset to the length of the topLayoutGuide.
Your final solution (put this in viewDidLoad):
self.automaticallyAdjustsScrollViewInsets = NO;
tableView.contentInset = UIEdgeInsetsMake(self.topLayoutGuide.length, 0, 50, 0);
As pointed out by others, deprecations have made this solution impossible, and if we use a section footer, this will display at the inset all the time. A much simpler solution would be to add a tableFooterView to allow the bottom cells to scroll past the buttons. Like so:
let bottomView = UIView(frame: CGRect(x: 0, y: 0, width: self.view.frame.width, height: 83))
bottomView.backgroundColor = .clear
tableView.tableFooterView = bottomView
This will make it so the contents shift up.
If you want them to shift down you can change the insets accordingly.
func shiftScrollingUp() {
yourScrollView.contentInsetAdjustmentBehavior = .never
yourScrollView.contentInset = UIEdgeInsetsMake(0, 0, 150, 0)
}
AutomaticallyAdjustsScrollViewInsets is deprecated in ios 11.
I'd like to have a UITableView which is full screen. But the content of the UITableView should have a padding on the left and right.
So I tried to set ContentInset. But now the cells are as wide as the UITableView and the UITableView scrolls horizontally.
Is there a way to say that the UITableView content's width should become narrowed by the horizontal content insets? Or do I have to add the padding to all cells and header/footer views?
I don't want to narrow the table view itself, because the scroll indicator should stay at the right side of the screen and not in the middle.
The here (How to set the width of a cell in a UITableView in grouped style) suggested solution seems to be not as generic as i'd love to, beacuse the cells and header and footer views have to know about the padding (at least 3 places to maintain instead of one)
I don't want to narrow the table view itself, because the scroll
indicator should stay at the right side of the screen and not in the
middle.
This makes you happy?
_tableView.clipsToBounds = NO;
_tableView.scrollIndicatorInsets = UIEdgeInsetsMake(0, 0, 0, -30.f);
If you don't like clipsToBounds = NO effects, you can embed the tableView in container view which is clipsToBounds = YES.
Set the layout margins of the table view. For this to work make sure your constraints in the cells are set relative to the superview margin.
tableView.layoutMargins = UIEdgeInsets(top: 0, left: 40, bottom: 0, right: 40)
I have this arrangement in Interface Builder, all properties are set to zero.
However, when I run it on both device and simulator it appears like this
Where is the space above the cells come from?
So I try to set these properties for UICollectionViewFlowLayout in code like this
UICollectionViewFlowLayout *layout = [[UICollectionViewFlowLayout alloc] init];
layout.headerReferenceSize = CGSizeZero;
layout.footerReferenceSize = CGSizeZero;
layout.sectionInset = UIEdgeInsetsMake(0, 0, 0, 0);
layout.minimumInteritemSpacing = 0;
layout.minimumLineSpacing = 0;
layout.itemSize = CGSizeMake(103, 119);
self.calendarView.collectionViewLayout = layout;
but I have no luck.
How can I get rid of that space?
UICollectionView is descendant of UIScrollView class which has contentInset property, setting -20 top inset fixes the problem
[self.calendarView setContentInset:UIEdgeInsetsMake(-20, 0, 0, 0)];
However, the problem comes from UIViewController's automaticallyAdjustsScrollViewInsets property.
By documentation:
Default value is YES, which 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. Set to NO if you want to manage scroll view inset adjustments yourself.
That's why we get adjusted content insets for status bar. It's better to disable automatically adjusting than manually set value which doesn't match in result picture.
[self setAutomaticallyAdjustsScrollViewInsets:NO];
Another way is to select your ViewController and uncheck the checkbox Adjust Scroll View Insets in your interface builder:
It is essentially the same as the following line of code. But you got to see your changes right away in the interface builder.
automaticallyAdjustsScrollViewInsets = false
iOS 11 deprecated the use of automaticallyAdjustsScrollViewInsets, so the use of collectionView.contentInsetAdjustmentBehavior = .never is advised.
Here is the answer in swift with a few adjustments:
I have a collection view that takes up a small portion of the view. I used:
self.automaticallyAdjustsScrollViewInsets = false
to remove the top spacing that was messing up my layout. This piece of code didn't work for me:
self.paperCollectionView.contentInset = UIEdgeInsetsMake(0, 0, 0, 0)
And neither did this one:
self.paperCollectionView.contentInset = UIEdgeInsetsMake(-20, 0, 0, 0)
But that might be because I'm not using a UICollectionViewController, I'm just using a UICollectionView.
Here's a bigger portion of the code to give more context:
You can also go with
[self.calendarView setContentInset:UIEdgeInsetsMake(0, 0, 0, 0)];
[self setAutomaticallyAdjustsScrollViewInsets:NO];
There is by default collection view header scrolling space added on the collection view and you do not need to add -20 from top because it may reflect on device issue
You can do this in Interface Builder by going to the Scroll View section and changing the Content insets dropdown to "Never".
Swift 3:
self.automaticallyAdjustsScrollViewInsets = false
This answer is weird, but it works if you are working in Interface Builder and have a Collection View embedded in a View Controller that is under the control of a Tab Bar Controller that is the root view controller of a Navigation Controller.
Add a Toolbar to the View Controller that has the Collection View
Move the Toolbar in the hierarchy such that it is above the Collection View
If the Toolbar is above the Collection View, there will be no space from the top of the prototype Collection View Cell to the Collection View. If there is no Toolbar or the Toolbar is below the Collection View, then there will be space between the top of the Collection View and the Collection View Cell. This is true both in the Storyboard preview and while running the app. The same type of thing occurs for Table Views.
This was most recently tested with Xcode Version 8.3.3