I have some issue with labels layout using storyboard.
Left view snapped to labels trailing constraint, and centered according to text, and nothing more. So problem appears when I try to set different text to label, (when text contains number of characters greater then in text on story board). After text has been setting label does't resize it's frame.
Here, how it looks in runtime:
I have the same issue with other all labels in project, they are don't resize in runtime, but They should. Here is how it should looks like :
I'v already tried to add layoutIfNeeded() and sizeToFit() to those labels, but it has no effect. I made another project, with pretty same label and constraints, and there it works fine, as should. But not in this project.
What problem could be in?
It could also depend on when you're setting the text of the label.
If you're setting the text in viewDidLoad try doing it in viewDidAppear.
i have a similiar problem as asked in How to resolve the Storyboard's warnings on Xcode?
However my left label can get really wide at runtime and the standard behaviour is, that the right label is truncated. How can i force the interface builder to truncate the left label and not the right one?
Both texts in the labels are set on runtime, so i have no knowledge of the resulting width of each label.
As stated above i used the solution from the linked question but the wrong label is truncated. So my problem differs from the one stated in the link.
There is a property called content compression resistance.
This determines how hard it resists compression of content.
So... for the label that you want to keep full length run this...
label.setContentCompressionResisyancePriority(.required, axis: .horizontal)
I’m typing on my phone so I may have messed up the parameter names. But auto complete will help.
This will make sure that the other label is truncated first.
You can also set this in IB in the measurements panel near the bottom.
I downloaded the new Xcode and in Interface Builder I'm having a ton of problems with warnings that say things like:
Fixed Width Constraints May Cause Clipping
It looks like this:
I do have localization for several languages and I understand the warning that in another language a label's size may change, but my app doesn't have this problem. I ran and tested it in Xcode 8 yesterday, it was fine. I don't want to spend hours and hours adding pointless new constraints.
Any suggested solutions?
I was getting the same warnings even without multiple languages in my app, which led me to find out what was really going on. . .
There are a few different things going on here. I was able to silence the fixed-width warnings in my own app by changing the width of the object spacings from fixed width to greater than or equal or less than or equal.
This can be done by selecting the object in interface builder, going to the size inspector and changing it there:
Or, select the constraint from the document outline, go to size inspector, and change it there:
As far as the warning at the top of your screenshot:
Fixed leading and trailing constraints with a center constraint may
cause clipping
Here is a screenshot from my own app in which I was getting the exact same warning:
I had the label with the # sign set to leading and trailing to the buttons but also to align the center with the rating label. Once I removed the center alignment constraint, the warning disappeared, but I was left with an improperly laid out set of objects.
It is then that I resigned myself to embrace the Stack View. As annoying as it is to use, when you get all of the constraints and settings right, it lays out beautifully and with no warnings.
Edit
As Repose writes in the comments, sometimes simply adding >= 0 will be what you need, as you are making sure two elements do not overlap.
You can try Disabling "Respect Language Direction" on per Constraint basis to silence the warning and see if it helps. Select your constraint and open Attributes/Size Inspector. Please see image attached.
If you are not planning on localizing your app to other languages, then this solution should not have any drawbacks. For localized apps you have to be more conscious of your label and font sizes.
p.s. This solution works for iOS. For macOS try >= or <= to silence the warning.
p.p.s. Labels in the picture below are much easier to create using AutoLayout and attributedString property on a single UILabel or UITextView using NSMutableAttributedString. The image is for demonstration purposes only.
For labels and buttons which are localized this warning makes sense and you should provide the necessary constraints so your labels don't overlap. If they don't overlap now they might in the future, so it won't hurt to provide the constraints.
Xcode helps you add these constraints automatically:
In the document outline of your storyboard click on the yellow arrow and either choose "fixed leading" or "fixed trailing", depending on where the text is on your screen (left or right). This will fix it for most issues.
If you have this issue with a Button without any text (only image), try to remove the "default title" which might still be set for the button:
With Labels, you can set Lines is 0 and Autoshrink properties is Minimum Font Size to remove Fixed Width Constraints May Cause Clipping warnings, like this:
Another quick solution !
For a UIButton by changing the title from plain to Attributed text also resolved my issue:-
I know this question has already been answered but what I did to fix this error in my case was to add the "Aspect ratio" property and then eliminate the width or height constraint this worked pretty well and was less effort, and I managed to keep the same output and adapt my view for the different devices.
Swift 4 , Xcode 9.1 :
About this issue, I think your object don't know what it's the correct center position in the context of it's superview, and using remove, greater than or other leading/trealing settings most of times don't work correctly. First, you must check the correct constraints of your superview.
If your superview/s are correctly setted, you can try to "explain" to your object what is the correct position in the view by setting the "horizontally in Container" constraint:
If you need fixed width constraint for button just set width constraint priority to 700.
I had the same problem, but when I changing to >= it automatically set the constant to 0, if I choose 60 for instance, the warning appears again. So I was in a loop with the problem.
I could fix embedding my Label in a View
Editor > Embed In > View
In Label I set Top, Bottom, Leading and Trailing with constant = 0
In View I set the constraints that I was expecting before.
I had the same problem when moving to Xcode 9 and found an approach that's useful for certain kinds of layouts. In my case, I wanted a table header in which two columns (UILabels) were of fixed width and another was of variable width. Regardless of how I specified column widths (including using constraints greater than or equal instead of equal, etc.), I kept getting the warning about possible clipping. In my case, I wanted the variable width column (UILabel) to clip if necessary. I could have just ignored the warning, but don't like doing that.
The approach that worked here was to create a UIView with appropriate size constraints and embed the UILabel as a subview in the UIView. Then truncation happens if necessary and I get no warning. This works whether the UIView/embedded UILabel is in a StackView or not.
This is essentially the same approach as that of Haroldo Gondim but here you can see it also works with or without StackView.
The following image shows the approach, with and without StackView. "SpacerName" is a variable width UIView containing a label and "SpacerPD" is one with a fixed width of 80. [Colors are not significant; just there to show where the views are.]
As you can see in the image below, I was having the error "Fixed Width Constraints May Cause Clipping" because although I had set my textbox to be vertically centered and my label to have a left margin constraint, I hadn't defined a constraint for the text box in relation to the label, so XCode was alerting me that the textbox could clip (be rendered above) the label.
After adding the left constraint to the text box to always stay some distance apart from the label the error was considered solved by XCode and it didn't bothered me with the constraint warning anymore.
I had a similar issue when trying have the button with the same paddings from the edges of the super view.
I've ended up using horizontal center constraint and equal widths constraint to the super view.
To Fix The Error: Fixed Width Constraints May Cause Clipping” and Other Localization
You need to select the view/object, go to the "Show Size Inspector", find the Width Constraint and set the Constant to Greater or Equal to:
To Fix The Error: Leading/Trailing constraint is missing which may cause overlapping with other views
This means that the view/object Xcode is complaining about, is missing a Leading or Trailing Constraint to a neighboring view.
While holding control, drag to a near by view/object
Add a Leading or Trailing Constraint
I am beginner in iOS app development, I am working on a project that was done by someone else. So my problem is the label is not fully showing its contents:
check the second column under 'customer name'.
I did some basic alterations to the label but it makes no change at all. This is a collection view, there is another view inside the collection view cell which holds the title label and description label.
I searched everywhere but didn't get any proper answer please help.
Label in iOS does not change its size to suit the contents, you need to adjust it in your code. Your options are either decrease the font size to suit the description label size, or adjust the description label's height/width to make room for current content. I'd do a combination of both (slightly reducing the font size of the label's text, and at the same time making all the cells a bit wider and taller).
Oh, there is also a way to automatically shrink the font size if the contents doesn't fit the space. So, you'd need to check the option for your description label. Here's how you might do it: how to make UILabel autosize text in storyboard (or interface builder), NOT programmatically
If the text of a label in a universal storyboard is too long to fit some resolutions, how do I accommodate it?
Storyboard View
iPhone 6 Emulator
I'm not sure if there is a proper way to go about this according to the guidelines, but I would assume I would either text wrap onto multiple lines or adjust the font size automatically.
Here is a simple gif, which can help you to understand it better.
You can do either. First set the constraints so that the UILabel does not go past the edge of the screen. Then you have two options. Either set the minimum font size of set the number of lines to 0 (or both).
All of these settings can be set in storyboard.
Edit to following your comment
Constraints are usually set in the storyboard and dictate how a view is drawn based on the device you are using. It's a large and critical subject and Ray Wenderlich has a very good two part tutorial on it.