I have xib in which button and uicollectionview appears as follows:
Now, when I run it , it appears as follows:
I want to remove white space above photos. I want to show photos just below from button. I have not marked header section in xib too. But, when I scroll up, the images move upto just below buttton too.This means frame is starting from just below button, but, I am getting extra white space.
So, can anybody help me to remove extra white space?
Add this code to your Controller class
- (void)viewDidLoad
{
[super viewDidLoad];
self.automaticallyAdjustsScrollViewInsets = NO;
}
Here is doc for automaticallyAdjustsScrollViewInsets
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, such as when there is more than one scroll view in the view hierarchy.
I had the same problem. What work for me was to set automaticallyAdjustsScrollViewInsets = NO not only on the ViewController containing the CollectionView but on its parent ViewController too, because the child ViewController was in a ContainerView.
It can be done in the Interface builder too:
Auto adjust scroll view insets
Related
Please see the dashed-box area, this is extra space appearing between navigation bar & table view.
I've tried 3 things but same problem.
1. Cleared all constrains & "Add missing constrains"
2. I've used pin, & keep '0' distance to UI object above table view
3. I've used dragging method, & set vertical spacing for table view.
You nee to uncheck the property inside attribute inspector Adjust Scroll View Insets using storyboard see image below.
Edit:
Adjust Scroll View Insets: Defines a Boolean value that indicates whether the view controller should automatically adjust its scroll view insets.
The default value of this property is true, which lets container view controllers know that they should adjust the scroll view insets of this view controller’s view to account for screen areas consumed by a status bar, search bar, navigation bar, toolbar, or tab bar. Set this property to false if your view controller implementation manages its own scroll view inset adjustments.
Select View Controller and Check Adjust scroll View insets.
I've done it, I was placing table view under navigation bar, now I've placed it exactly touching upper bounds of the view. And added missing constrains. enter image description here
Use this line in your tableview class's viewDidLoad method,
self.tableView.contentInset = UIEdgeInsetsMake(0, 0, 0, 0);
This sets the content from top.
It will be helpful for you.
-(void)viewDidLoad{
[super viewDidLoad:animated];
self.automaticallyAdjustsScrollViewInsets = NO;
}
By adding following line in viewDidLoad will solve this issue
self.navigationController?.navigationBar.translucent = false
When I click one of the cells in the table view, it opens a new view with the following code:
let fullResView : FullResponseViewController = self.storyboard?.instantiateViewControllerWithIdentifier("FullResponseView") as! FullResponseViewController
fullResView.receivedPost = post
self.navigationController?.pushViewController(fullResView, animated: false)
When I press back, it increases the distance between the table view and the Top Layout Guide. Representation:
Hierarchy:
I have a tab bar controller, that is embedded in a navigation controller.
The table view is drag & dropped after creating an normal view. So the table view is inside a View.
Table view does contain an header view. When setting a background color for this, it moves together with it, so it should not be anything with those constraints.
constraints for the table view are:
equal with to superview
Align Center X to superview
top space to Top Layout Guide
bottom space to Bottom Layout Guide
I've tried the following:
set this in viewWillAppear:
self.responsesTableView.contentOffset = CGPointMake(0, 0)
self.automaticallyAdjustsScrollViewInsets = false
This did work when I pressed back, then switch to another view in the tab bar, and then switch back again. Without contentOffset it will stay like this forever.
As i seen the OP images that seems like Navigation translucent property Issue. Because after push a viewcontroller there is same 44px white space. so it means if your Navigation translucent property is true then your UITableview start from 0th Y position. And if your Navigation translucent property is false then UITableview start from 44px Y position.
So i guess in between push and back some where UINavigation's translucent become a true and false. make following one line add in your appdelegate class in DidFinish method:
UINavigationBar.appearance().translucent = false
This is appearance of UINavigationBar for make this false globley in your project. Hope that will be fix your issue.
I'm not sure if this is related to your particular issue, but it's worth checking whether your UITableView is the first control on your screen:
Why is there extra padding at the top of my UITableView
Even in the latest version of Xcode, this is a bug. But it's easy enough to fix, if you know how to get around it.
Have a following structure:
UIViewController (VC) with some UIViews(views) on the top half of screen and UITableView (tableView) on the bottom half of screen. All are on the same hierarchy level within VC's view.
VC is managed by UINavigationController.
Auto-layout is off. Using autoresizing masks.
dataSource and delegate methods are set up and works fine.
What I want to realize:
Hide a navigation bar when scroll up and show in after the scroll down.
What I did:
Since my project supports iOS8+ only, just setting:
- (void)viewDidAppear:(BOOL)animated
{
[super viewDidAppear:animated];
self.navigationController.hidesBarsOnSwipe = YES;
}
should be fine.
What I have:
Swiping up and down on the views hides and shows navigation bar respectively.
Scrolling tableView makes no sense.
Spent some time on that and found that resizing tableView to make it match to vc's view solves the problem.
Edit:
Is it mentioned somewhere in the docs that table view should be only full screen?
Found interesting thing: even if you didn't set hidesBarsOnTap to YES and try to tap on navigation area (i.e. when it's still hidden after swipe) - navigation bar will show after that. Very annoying if you have any UI elements in that area.
I'm using XCode+IB to layout a pretty simple view. There is a standard NavigationController navigation bar at the top. Inside the main View is another View which contains a Label, and then a table below that takes up the rest of the screen. I put the label in this container view because I want that area below the navigation bar to have a background color (gray).
The problem is that even though the main View starts just below the navigationBar, the label's container view is exists underneath the navigation bar. Sort of. You see, the label appears below the nav bar, but the gray background is somehow under the navigation bar. If I set the height of the label's view to be 75px, it just starts to appear below the navigation bar. (22+44 for statusbar and navigation bar)
Auto-layout is disabled.
So why is the View container starting below the navigation bar for the background? (but not its internal label?)
Since IOS7, I use this in the ViewController so that the content starts below the navigation bar, instead of underneath it.
if ([self respondsToSelector:#selector(edgesForExtendedLayout)]){
self.edgesForExtendedLayout = UIRectEdgeNone;
}
I realize alternatively I can set the main view's background or make the label especially large perhaps and give it a background, but I'd like to see why this isn't working first.
EDIT:
I added a feature to this View where the main view will shift upwards 125px when the keyboard is opened for some UITextFields. Interestingly, the entire view shifted except for the Label's View container. That view remained in place while it's parent view shifted up and back. The label itself shifted up and down however. So once again, the middle View seems linked to the Window, and not the actual main View...
Check if you have Adjust Scroll view Insets on!
Go to your view controller, and it is under the Attributes Inspector
You might want to consider a header cell if you just want to be able to post a message or instructions just below the nav bar. You can then avoid the extra UIView thing. The header cell will not scroll with the table view if that is your concern and it will position just below nav and above the rest of the table cells. Here is a simplified example that uses a custom header cell setting the background color. You can also drop UILabels, etc. into the cell via IB if you choose.
-(UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section
{
MyCustomHeaderCell *headerCell = [tableView dequeueReusableCellWithIdentifier:#"MyCustomHeaderCell"];
headerCell.backgroundColor = [UIColor grayColor];
return headerCell;
}
I have a UITableView which has a UISearchBar subview. This is all on the view of a UIViewController along with a few other subviews (labels, text fields and such).
The search bar and content offset of the table are acting quite strangely, but it seems dependent on the order in which these views are added to the main view in the xib. I created a sample project with just my table/search and a label in order to test, and the result is the same. When the table is added after the label, everything works fine:
Setup:
Correct and Expected Result:
However, if I simply change the order in which my 2 subviews sit on the main view (aka table added before the label) then weird things start happening.
Apparently bad setup:
Weird offset of Search Bar:
I'm not changing anything else whatsoever, so why does Xcode seem to care which order these subviews are added to the main view?? If I scroll up on the "bad" table setup, the search bar disappears immediately at its top edge, but the table's content will continue to scroll up until it reaches the top of the frame that was set in the xib. Scroll back down and the search bar doesn't reappear until the strange lowered location. This is in Xcode 5.1.1, not the new beta. The result is the same with or without Autolayout turned on.
Any idea why this is happening? Is this a bug, or am I missing something? (I didn't post any code because all I'm doing is setting the number of sections, rows, and setting the text on the cell. Not messing with content insets, offset, anything. I load the view from the app delegate as the root of a nav controller)
This happens because a UIViewController's property called automaticallyAdjustsScrollViewInsets
With iOS 7, UIViewControllers have a property called
automaticallyAdjustsScrollViewInsets, and it defaults to YES. If you
have a scroll view that is either the root view of your view
controller (such as with a UITableViewController) or the subview at
index 0, then that property will adjust both the contentInset and the
scrollIndicatorInsets. This will allow your scroll view to start its
content and scroll indicators below the navigation bar (if your view
controller is in a navigation controller).
From Big Nerd Ranch
If you are using storyboards, you can change it by selecting the view controller and in the attributes inspector deselect Adjust scroll view insets.
Here is its description from apple 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, such as when
there is more than one scroll view in the view hierarchy.
I have same problem before about position of tableview and searchbar. i tried the following and it works for me.
If you do not write code for that and if it is only problem of xib or storyboard then try all outlet's autosizing and origin setting to fix its position and see the difference. it may be work for you.
Update : automaticallyAdjustsScrollViewInsets has been deprecated in ios 11 and a new field contentInsetAdjustmentBehavior has been introduced.
if #available(iOS 11.0, *) {
tableview.contentInsetAdjustmentBehavior = .never
} else {
automaticallyAdjustsScrollViewInsets = false
}
UITableView header can contains only one UIView, so if you need UISearchBar plus UILabel, you need to wrap they into UIView and add this view as UITableView header.