UIButton dynamic font size - ios

The image shows a 3x3 grid which is a vertical stackview, which contains 3 horizontal stackviews, which contain 3 buttons each. The top horizontal stackview has a correctly sized set of numbers within it(just by setting the font size to 80). The other two do not.
I want the numbers to take up the same amount of space on all devices so every number on each button is the same relative size on every device. This must be done programmatically! Not in IB... I cant find much info on this topic so even a link would be helpful please.

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Constraint font sizes of multiple UILabels to be equal

I have multiple UILabels horizontally aligned next to each other. Since they have different lengths of text, when using auto layout (bind left anchor to the right anchor of the previous label etc.) it isn't sure which label to make larger and which one to make smaller so the widths are different and the font sizes are different as well.
To be clear: it's not important if the width of the labels is different, it's just that they should all have the same font size while still displaying everything in 2 lines.

Autoshrinking text size for multiple ui labels

I have five ui labels for one view. All of them have variable text content. To prevent truncating I have to use Autoshrink text size.
My ui labels are aligned in x axis top to bottom.
The problem is; when autoshrinking, all ui labels have different font sizes.
Is there a way to equalize font sizes of all ui labels when autoshrink.
I use interface builder autolayout constraints.
Thank you.
You could loop through your labels, find the smallest text size and then set that text size to all of them. That way, you know they'll all fit and have the same text size. You would have to do this programmatically. Alternatively, you could dynamically change the size of your UILabels based on the number of characters it holds times some constant factor. That way, the autoshrink should set the same size for each the text in each of the labels.

How to lay out UIImageViews based on the height that is left?

I am trying to create this layout, but I am struggeling so badly that I have no words left for it. I have tried for three days but yet I can't create the layout.
I am trying to have the three imageviews in the middle scale if the height of the view changes, but they are not behaving correct. I have successfully manage to get the ratios correct though, but the images either goes behind the blue button, or the blue button suddenly looses its height or the text disappears.
Isn't it possible to have three image views in the middle that take whatever height is left after the title and text + blue button have been laid out and then properly show them with correct ratios?
You can try multiple approaches here:
Size Classes:
Lay out the views for each possible size (probably the easiest but the least flexible
Use Constraints with different priorities:
You can set a max-height for the image views by adding a constraint for the height and then setting its relationship to equal or less than. This allows the image to scale up until a maximum size is reached.
Then add a second constraint between the bottom box and the images. Set the priority of this constraint to 750. This makes the image grow in height, when the bottom view moves down.
Then add another constraint which sets the aspect ratio of the image. If you use the mode of the view to Aspect Fit, the image will now always be scaled up to fit the image view.
To make all images scale proportionally, add constraints for equal width and equal height between them, then set the factor to match the proportions between these images.
The last step is now to vertically align the images properly as you showed in the pictures. To do that, add constraints between the images, which align them by their vertical centers, bottoms, baselines or tops.

Update multiple UILabel/UIButton font sizes by constant value

I want to be able to increase/decrease the size of several the label/button fonts on my storyboard by the same amount. As far as I know sizes can be changed when selected (though as labels or buttons separately) and adjusted but each is updated by one font value not say a percentage. Ideally I'd like to select all labels and buttons and enter a value to times them by (e.g 1.4x). Is there definitely no way of doing this?
I used the label multipliers to create percentage view sizes and auto shrink to resize the text to be proportionally sized.

IOS Swift resize label font size when screen size changes

I have multiple labels in the storyboard using the any X any Resolution as follows:
Now I have added constraints to the best of my knowledge to force the labels to reposition when an iphone simulator is used and the following happens.
What I would like to happen is have the labels remain the same distance apart from each other proportionally and just resize their font size. So If we were to divide the Iphone screen into thirds Days would occupy the first 3rd, months the 2nd, and Years the 3rd. I thought maybe using aspect ratio for constraints would work but I got the same effect of the labels bunching on top of each other. It looks like they maintain the constraint of distance from the edges but they wont resize themselves to keep the ratio.
Thanks
If you want to keep same distance between each of them, one way of achieving it is:
Give all of them equal widths constraint. and set leading and trailing constraint to zero. Align all labels to centre horizontally.
This way, you wont need to change the font size..
But, however, if you still want to change font, go to attributed inspector for label and under auto shrink: change fixed font size to minimum font size and set it to appropriate value, say 14.

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