how to fit only the height size of label ...
i have tried this:
servicedes.sizeToFit()
but this will fit both height and width... while i just want to fit the height of it so the text will be at the first line of the label ... my label is a multi lines label ..
this is my label
and this is what i got:
the space by the blue arrow is what i don't want ...
constraints:
how to do this?
Layout constraints aside, you should be able to use .sizeToFit() in a way that it only resizes the label's height by setting the width just before:
label.frame.width = label.frame.width
label.sizeToFit()
This approach won't work when using the constraints you're using right now.
Do the following:
Remove 'Center X' Constraint of the label
Add Trailing constraint(eg. 8) to the label and set relation of Trailing Constraint to 'greater than/equal to'.
Adding Trailing constraint:
Setting Relation:
Related
My task is to preserve the size and position of the elements inside my cell for different screen resolutions.
I did:
Established constraints for the red and green blocks (UILabels) to
the outer container.
Set the constraint between them equal to 0. It is more priority than the limitation of the red block to the bottom and green to the top.
Set Lines = 0 for these labels.
Set Autoshrink.
As a result, the font size changes on different devices. But there are still a few problems:
How can I remove too large paddings above and below both labels?
How to make them resize evenly?
Now one of the blocks has an advantage over the other, depending on what constraint to make a higher priority. If you make them equal - it also does not work.
(I would like to do everything through Interface Builder)
Screenshot with differing priorities of constraints
My constraints
Paddings and Attributes
You can take advantage of equal height and equal width constraints.
Follow the below steps to make the UILabel spacing same on iPhone 8 and iPhone 4s. This will help you to make it proportional.
1) To achieve this simply select, your label(red), label (green) and the superview (which I think you're its a cell of UICollectionView)
2) We are interested here in keeping the height proportional.
i.e Red Label (80%) and Green Label (20%)
Currently, all heights are equal to superview height i.e height of RedLabel and Greenlabel is equal to 100% of superview.
But the goal is to make it 80% and 20% for red and green label respectively.
So select Red Label height constraint. Here you set the constraint which says's "height of the red label should be 80% of the superviews height".
Similarly for Green Label, set "height of the greeen label such that it's 20% for the superview's height".
Red Label
Green Label
3) Now complete the x and y axis position constraint, which would be straight forward
a) Red Label Leading = Leading edge of superview
b) Red Label Trailing = Trailing edge of superview
c) Red Label Top = Top edge of superview
d) Red Label Bottom = not required (as it has all the required constraint's to justify it's position i.e height = 0.8 * superview and it is top aligned, ex: super view height is 100 , keep this view top aligned with height = 80 )
e) Green Label Leading = Red Label Leading (you have already set this in point "a" no need to set the constraint again for Green label)
f) Green Label Trailing = Red Label Leading (you have already set this in point "b" no need to set the constraint again for Green label)
g) Green label bottom = bottom of superview
h) Green label top = not required (as it has all the required constraint's to justify it's position i.e height = 0.2 * superview and it is bottom aligned, ex: super view height is 100 , keep this view bottom aligned with height = 20 )
This is the final constraint list and the storyboard preview for iPhone 8 and 4s.
I want the DecriptionLabel (the Lorem Ipsum one) to have all the text inside it visible. As you can see, it is getting trimmed.
The two buttons should be under everything else, but in the case where DescriptionLabel contains a small text, the buttons should stick to the bottom of the view.
This is why I chose a >= 20 distance between the buttons and DescriptionLabel if it makes any sense.
How can I solve the trimming of the text?
Thanks.
I was originally answering How to make button stick to bottom of scroll view if the content isn't large enough? but since it is marked as duplicate of this one I am posting my answer here. Please try to set your constraints the following way: https://imageshack.com/a/img923/6671/Txzu98.png
The trick is that you set Button.Bottom Equal To ContainerView.Bottom with lower priority (I use 750) than Button.Top Greater Than Or Equal To Label.Bottom (Here I use default 1000)
The Label has to have number of lines set to 0. The height of the button should be set by height constraint (in this case is 50). The Container View Height constraint should be with low priority (in this case 250)
You should run the code to see actual result on device or simulator. Storyboard shows it a bit differently. For the current question:
https://imageshack.com/a/img923/7276/tQeT0h.png The basic idea is the same. Button Down has the same constraints as Button from above answer without Button.Top Greater Than Or Equal To Label.Bottom. There should be fixed vertical constraint between Button Up and Button Down. I am setting Button Up with fixed Height and setting trailing and leading constraint equal to trailing and leading of Button Down. The constraint Button.Top Greater Than Or Equal To Label.Bottom is now Button Up.Top Greater Than Or Equal To Label.Bottom
Have you set numberOfLines for label to 0 (that means autosize the label according to its text length)?
You should add the following constraints:
(following in sudo code)
// Constraints for ScrollView
scrollView.top = ViewController.view.top
scrollView.leading = ViewController.view.leading
scrollView.trailing = ViewController.view.trailing
scrollView.bottom = ViewController.view.bottom
// Constraints for View
view.top = scrollView.top
view.leading = scrollView.leading
view.trailing = scrollView.trailing
view.bottom = scrollView.bottom
// Width of view
view.width = ViewController.view.width
Now you just need to make sure you have layout constraints for each child of the 'view' and it's height will be correct and display the full size of the textview.
Add the following constraint:
scrollview.contentview.height >= safearea.height
This may show an error in interface builder but works in my tests:
To remove the design time error you could set a design time intrinsic content size for the scrollview's contentview (in my case I used the safe area's height of 554):
Another option (without placeholder values in IB) is to create the following constraint...
scrollview.contentview.height = safearea.height
... and change its priority to a value lower than the label's vertical content compression resistancy.
I have 2 labels: the description label (w/ red background) and the results label (gray text)
How do i set constraints for this example in order to have the results label with the size of its content and the description label until the results leadingAnchor? (like i have in the second row)
Objective C
[self.customTextLabel.trailingAnchor constraintLessThanOrEqualToAnchor:self.counterLabel.leadingAnchor].active = YES;
[self.counterLabel.widthAnchor constraintGreaterThanOrEqualToConstant:0].active = YES;
swift
titleLabel.trailingAnchor.constraint(lessThanOrEqualTo: counterLabel.leadingAnchor).isActive = true
counterLabel.widthAnchor.constraint(greaterThanOrEqualToConstant: 0).isActive = true
I have a solution that i think it's ugly.
self.counterLabelWidthConstraint = [self.counterLabel.widthAnchor constraintEqualToConstant:0];
self.counterLabelWidthConstraint.active = YES;
And then after i set the text:
self.counterLabelWidthConstraint.constant = [self.counterLabel sizeThatFits:CGSizeMake(CGFLOAT_MAX, self.counterLabel.height)].width;
The way to do this with auto layout is by using the contentCompressionResistancePriority of the 2 labels. Set the pririty to NSLayoutPriorityRequired for the second label and something lower like NSLayoutPriorityDefaultLow for the first label. Then, as long as the 2 labels have proper constraints anchoring them to their superview and each other, the first label should compress while the second label should not.
You just need to increase the horizontal compression resistance of the right/gray label to be higher than that of the left/red label. This tells the visual layout that, in the event that there is not enough space for both labels, the one on the left will be compressed before shrinking the label on the right. 750 is the default for all views, so just increase the right/gray label's horizontal compression resistance to 751 and you should be good to go.
Swift 5 programatically:
<#label#>.setContentCompressionResistancePriority(.required, for: .horizontal)
Labels with this property will not compress horizontally.
You can set constraints for in storyboard itself. Select Label 1 (red back ground) and label's superview set widths are equal constraint. Select Label 1 and double tap on its width constraint, from the resultant window, you could see Lable 1 width equal to superview with value constant as '1'. change '1' to 0.7 or whichever the percentage you want.
As I am new to iOS. So forgive me if it is duplicate or very basic question.
I am taking one View. Approx below is the size .
x : 5 y : 5
Width : 590 Height : 100
and I set constraint it
Top to superView 5
Trailing to superView 5
Leading to superView 5
Now I have one Label which have dynamic Text and the Text is too large.
And the Label Constraint is below
Top to superView 5
Trailing to superView 5
Leading to superView 5
and when i set the background color of the View the color is not set. If the Text is to Long. So how to set the Height of the View and also set background so that it looks clear.
Code :
public override void ViewDidLoad()
{
base.ViewDidLoad();
lbl_one.Text = "This is a long label which have long text inside the writing. This is a long label which have long text inside the writing. This is a long label which have long text inside the writing. This is a long label which have long text inside the writing";
lbl_one.LineBreakMode = UILineBreakMode.WordWrap;
lbl_one.Lines = 0;
view_main.BackgroundColor = UIColor.Red;
}
If I give fix Height then it look like this .
Output :
1. Give the below constraints to your view, height is according to your need. here I'm giving 80.
2. Change the height relationship.
3. Add aUILabel in your above UIview, and give below constraints.
--> leading, top, bottom, trailing to uiview and height i.e. 80.
4. set height relationship as you do with UIView.
5. Change the property of UILabel , Lines to zero
6. Now enjoy with your constraints.
EDIT: Add bottom constraint to your view instead of height constraint.
I don't see and bottom constraint added to UIView, so the view height will be 0.
If you have added the height constraint to UIView, there is a probability that UILablel might be overlapping the UIView, so you are not able to see the background color.
Set the UIView height constraint this will solve your problem
You can also add height or bottom constraint to your UIView.
I have a UILabel. I've set trailing and leading space constraints, also I've added align Y center constraint. I've set Lines count to zero.
My goal is to stretch UILabel to some maximum width and then add new line. With given constraints I have following result:
I need first label to be not wider than P
You should use prefferedMaxLayoutWidth in that case. You can read more about this here.
You should use something like:
self.team1Label.preferredMaxLayoutWidth = 20; // or other value in PT