1) View A , view B , View C height & width are equal
2) View A height depends on Label1 & Label2 height
3) View B height depends on Label3
4) View c height depends on Label4
5) I want to take max height from View A, View B & View C but all are equal
6) View X heights depend on max of (View A,View B & View C)
How to achieve this through auto-layout?
Thanks in advance
It can be done easily in the Xib or storyboard. Refer to the Screen shot of the constraints created.
V1 --> First View
V2 --> Second View
V3 --> Third View
V1L1 --> First View's First Label
V1L2 --> First View's Second Label
V2L1 --> Second View's First Label
V3L1 --> Third View's First Label
The first View is Having the width constraint of 180 and all the views(V1, V2, V3) are having equal width and equal height constraints.
All the Labels Lines count is set to zero in the attribute inspector, This enables the label height increase as text of the label is more.
The height of V1, V2 and V3 is determined by the content of the labels.
Views height increases based on the labels content and all the view are given equal heights , Hence the Content view height will be the height of the max(V1.height, V2.height, V3.height). Also V1.height = V2.height = V3.height = max(V1.height, V2.height, V3.height)
Below is at the clear image of constraints.
Related
hello guys now I have UITableViewCell should have dynamic height , this cell have 3 labels , I have added them in to stack and I added all requirements
to let tableViewCell be dynamic height
1- The code used for automatic cell height
notifications.rowHeight = UITableView.automaticDimension
notifications.estimatedRowHeight = 150
2- I have set constraints leading and trailing and bottom and top space to the superView.
3- The number of lines for each label is equal zero
this is cell before run
enter link description here
this cell after run https://ibb.co/5YCMpfK
The constraints of your tableViewCell must be like:
Properties of stackView:
Axis: Vertical
Alignment: Fill
Distribution: Fill Proportionally
Spacing: 5 (as per your requirement)
Number of lines of all 3 labels = 0
Check if your stack view doesn't have height constraint.
Check if your labels do not have any height constraint.
Give your stackview top and bottom constraints a specific value and make them greater than equal to topContraint >= 5 bottomconstraint >=5.
Change the property of stack view to Fill proportionally and give spacing according to your needs.
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 created a custom UIView class where I create 2 UILabels and 1 UIImageView. I set the constraints for each element. Since the Labels will hold dynamic text each view will have a different height. How can I resize the height of the view? the constraints (top to bottom) are:
View Top > 16 > Label1 > 8 > ImageView > 8 > Label2 > 16 > View Bottom
The problem is: I have to initialize the UIView with a frame. and no matter what I try the view always uses the height of the frame given by initializing. And I cannot calculate the height of all elements and set a new frame because the labels habe sometimes 1 and sometimes 5 lines.
This is how the view looks at runtime
This is how its supposed to look like
Thanks in advance
You have to initialize the view with a frame, but when setting translatesAutoresizingMaskIntoConstraints to false after initializing, the frame passed in becomes irrelevant. Therefore, you can do what #BallpointBen recommended in the comments and pass in .zero:
let newCustomView = CustomView(frame: .zero)
newCustomView.translatesAutoresizingMaskIntoConstraints = false
// auto layout constraints should now determine height
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.
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.