In my UI there is a collection View where each cell contains a UILabel and a UIImageView. There are aligned as follows.
Where I am stuck is setting constraints to them because each UILabel has a random length. I always want to make the distance between left side of the image and left side of the cell equal to the distance between the right side of the label and the right side of the cell (in a certain cell).
I know I can set the centerY of each element equals to centerY of each element. But how can I set the other anchor.
I am not Using Storyboards.
I would add a horizontal stack view, set constraints to every edge with the desired margin, and add the image and label to the stack view.
Then set the hugging priority to the image view higher than the label. This will cause the label to take up the remaining space while being aligned to the left.
If I understand your problem correctly, you want to set spacing for left side of UImageView and right side of UILabel equally. For this, I would recommend you to put those views (UIImageView and UILabel) in a UIStackView with properties: axis as "Horizontal" and Alignment as "Center"; and adding constraint for Leading and Trailing Space with CenterX and CenterY Constraint.
For ease of understanding take a look at the image of UIStackView Constraints
Related
I have been facing issues horizontally aligning two UILabel and one UIImageView like this:
First label has variable width, can be truncated if long. Second label has fixed width, it should always be aligned to right of UIImageView. It should never go off screen. UIImageView is aligned to right of first label.
I have tried embedding them in horizontal UIStackView but the image + second label always aligns to end of cell. Got the same issue when trying without UIStackView.
Please help.
You can embed both label and horizontal StackView into another horizontal stack view. Then, you'd need to set the dynamic width Label's Content Compression Resistance Priority (you can find this property at the bottom of the Size Inspector), to be smaller in order for it to shrink.
Then on the container StackView (the one that contains all views), you'd need to set constrains to top, bottom, leading to 0 to the superview and the trailing to be greater than or equal to 0, for it to not take all space of the superview, but at the same time not get offset if the content is too wide.
I hope that is clear enough!
I am getting an image from a URL in a tableview cell. The image view is hugging the right top and bottom of a cell in the tableview cell. To the left of the image is text. I want the text to set the height of the tableview cell automatically and I want the image to conform to the size that is set by the text. How would I do that? Right now it is working but when the image is being downloaded, the cell resizes to become much larger because it uses the large dimensions of the image. As a result the cell in the tableview gets really tall. How would I fix this?
I know the issue is because I am using a greater than or equal to constraint between two of my labels as you can see below in the screenshot. But I need that greater than or equal to constraint.
Here is what my constraints look like:
This is what they look like and what I want it to look like:
This seems to be a cell that is laid out more or less as you desire:
The first label has three lines. The second label has four lines. The third label has one line. The first label has a leading constraint and a trailing constraint to the cell content view; the other two labels have their leading and trailing edges aligned to it. There are four constraints from top to bottom, content view to first label to second label to third label to content view.
The image view has its top aligned to the first label top, its bottom aligned to the third label bottom, its leading edge constrained to the first label trailing edge, and its trailing edge constrained to the content view.
That's all.
EDIT Sorry, I omitted a piece of the puzzle. For your use case, the image view's vertical content compression resistance would need to be lower than any label's vertical hugging priority. That says: "Let the labels dictate how tall I can be." Your labels have a vertical hugging priority of 251, so 250 would do.
You have set your constraints for the 3 labels, now for the image view set equal height to your cell(90-95% should do it). So the labels control the height of the cell and then the cell controls the height of the image view.
Edit: I think that you are complicating things. All your cells will have the same height(title,preview, source of 3,4,1 lines respectively), let them set the height, you don't need content hugging priority with the way i am suggesting.
I would use equal widths to set the width for all the items in your cell, the i would set the horizontal centers, for the spacing between constraints you can either use top-bottom constraints or set vertical centers and you are done.
Bare in mind that top-bottom-trailing-leading are NOT always the best choice, sometimes (like this one) can cause headache.
I have this images views:
I want that for every device that the distance between the first imageview and the left side it's the same , then the distance between the first imageview and the second image view it's the same and the distance between the second imageview and the right border it's the same. Essentially It must grow their width according to the screen size of the device , but I don't be able to do this by autolayout on storyboard.
Can you help me?
Try the auto layout in below mentioned way
Suppose your two image views are imageVw1 and imageVw2
Consider imageVw1 is left one.
So put following constraints for imageVw1
Leading constraint with main container view.
Vertical constraint with main container view.
Fixed height Constraint.
Horizontal constraint to imageVw2.
Similarly constraint for imageVw2
Trailing constraint with main container view.
Vertical constraint with main container view.
Fixed height Constraint.
Horizontal constraint to imageVw2.
IMPORTANT : Provide equal width constraint to both imageView. (this constraint is for assigning equal width for both the image view. Else we need to give variable width, but i guess you need both image would be of equal width. So just assign equal width constraint).
See output for 6sPlus and 5s.
Hope it helps.
Happy coding ...
Make a leading connection between left image and the view, left side. Make a trailing connection between the right image an the view, right side. Make an horizontal spacing connection between the images. Make a connection over one image and select aspect ratio and repeat it in the other image. Make connections to align, y position, etc
First imageView add a leading of lets say 10. And then between the second imageView and first imageView add a spacing of 10. Add a trailing space of 10 units of the second imageView to its superView. Now set second imageView to have an equal width and equal height to first imageView.
What you need here is setting equal widths property for your left and right images. This can be done by selecting two images at the same time and by checking 'Equal widths' flag.
You should also pin the leading space of left image to view with 'x' offset and pin the trailing space of left image to 'x' offset to right image. Also pin the trailing space of right image to 'x' offset to the view's trailing.
If the image view's super view is a scroll view, you will have to set the content size property of the scroll view.
May be you can go through this link.
Adding a view to a scroll view that will stretch to fill available width
I want to have a UILabel with a button to it's right centered horizontally like of the picture.
I've implemented an "Align by Horizontal center" for the UILabel and standard space between label and button and it usually works just fine.
The problem appears when UILabel's text is very long and it goes out of bounds and the button is not even visible.
I've tried to set lines count for the UILabel to 0 and set questionLabel.preferredMaxLayoutWidth = CGRectGetWidth(self.questionLabel.frame)what makes the label to grow vertically. But it's width is very small (it's the base width from ui designer) so it looks like a column of text.
So the question is how to make UILabel to:
to fill all available horizontal space without hiding the button
autoscale vertically if there is no enough horizontal space to fit text into one horizontal line
be centered horizontally
It's missing the constraint from the trailing of the UIImageView to the trailing of your container view or margin. I used a Greater Than or Equal constraint so if the label has a short length, the image will stay close to the label - using the horizontal space constraint from the label to the image.
With that, your label - that is centered relative to your view, will be centered and will respect your trailing constraint of the UIImageView to the view using all the horizontal space that is possible to use as follow:
In the following image it's possible to see that the label reaches the maximum width it can, according to the constraints:
you could remove the width constraint and add a horizontal space constraint from the right side of your label to your image and one from the left side of your label to the left border of your view (set the constant to the minY Value of your Image to get it centred)
I have a UIView that contains a multiline UILabel and a UIImageView. The imageView is a square that is a specific height and width and is centered vertically in the cell, while the label is constrained to the top of the view. Here's a little illustration:
I want to be able to make the parent view expandable based on either the UILabel or the UIImageView, based on which one has the bigger height. How would I go about doing this (in Storyboard)?
You would set a bottom and top constraint for both the label and image view at a high priority. Set the constant equal to the amount of padding you'd want.
Then, on the parent view, you'll want to add a height constraint with a lower priority than the top/bottom constraints of the label and image.
That way, you guarantee padding between the label/image and their superview, which will force the superview to expand its height since its priority is lower than that of the padding.