I have a use case for a OutlinedTextField where the OutlinedTextField should have 36dp height. Without any leading or trailing content, I can successfully override the component-level default OutlinedTextField height by passing the following Modifier, Modifier.heightIn(36.dp).
The problem: When I add a leading content Composable, the TextField jumps to 48dp height.
The leading icon height seems to be picking up the default min size from OutlinedTextFieldLayout where they have a default Min Size Modifier for the Icon:
internal val IconDefaultSizeModifier = Modifier.defaultMinSize(48.dp, 48.dp)
How can I override this default min size of the leading/trailing icon and have the leading/trailing content be smaller than 48dp?
I've tried to add a requiredHeight and heightIn to the top level Modifier of the leadingIcon or trailingIcon Composable with no success.
Related
I have a vertical UIStackView whose top, leading and trailing edges are pinned to the superview and whose height is determined by its subviews.
Its arranged subviews consist of 5 horizontal UIStackViews each of which have 3 UILabels as their arranged subviews.
For each of the horizontal UIStackView, the text of the first UILabel is the heading, the text of the second UILabel is the colon and the text of the third UILabel is the info as shown in the following image
All of the UILabels have numberOfLines = 0 so that they are multiline.
I would like to create constraints using auto layout so that the following conditions are met-
The colon UILabels are all vertically aligned
The width of the info UILabels are at least 20% of parent view
The width of the info UILabels are at most 60% of parent view
If the width of all the info UILabels is less than 60% of parent view ( see 3 ), then it must shrink to the width of the widest info UILabel.
I understand how to use auto layout to create constraints to satisfy the first 3 conditions.
However, I do not understand how to create constraint to satisfy the 4th condition. I tried increasing the "Content Hugging Priority" but it shrinks the label to 20% of the parent view ( see 2 ).
Can anyone point out how to achieve this layout?
This is considerably more complex than it would appear on the surface.
The "Info" column has to be evaluated for min/max width and word-wrapping, and the "Heading" column has to be evaluated for word-wrapping based on the "Info" columns variable width... and the "Info" labels have to match widths based on the widest wrapped (or not) text.
That's a lot for auto-layout to handle.
I don't think it can be done with constraints only. The main problem being that auto-layout calculates the height of the height of the Heading labels based on the potential for the Info labels to be at their widest.
So, we can end up with this:
and the Heading label text is no longer vertically aligned to the top of the label.
The best I could come up with is to override viewDidLayoutSubviews(), using a counter which forces auto-layout to calculate the Info labels first and then the Heading labels.
As to constraint settings...
The Heading labels need nothing special - just set the number of lines to Zero to allow word-wrapping.
The "Colon" labels don't need constraints, but they do need both Horizontal Content Hugging and Compression Resistance set to 1000 (required), because we don't want them stretching or getting squeezed.
The Info labels need:
Horizontal Content Compression Resistance: 1000
Horizontal Content Hugging: 999
Width: >= its stackView Width with Multiplier 0.2
Width: <= its stackView Width with Multiplier 0.6
Width: = its stackView Width with Multiplier 0.2 and Priority: 999
and finally, the bottom 4 Info labels need Width constraint equal to the top Info label.
The horizontal stack views that make up the 5 "rows" should be set to:
Alignment: Top
Distribution: Fill
Spacing: 8 (horizontal spacing between the "columns")
The vertical stack view that holds the 5 "rows" should be set to:
Alignment: Fill
Distribution: Fill
Spacing: 10 (vertical spacing between the "rows")
I've put up a project on GitHub that demonstrates the layout -- it has 10 different "variations" of label content to show how the sizing works: https://github.com/DonMag/MutlilineVarWidthLabelColumns
you can achieve this kind of UI by using min and max constraints.
you can follow the below constraints for it.
give max width to Heading label with the relation of the screen.
give fix width to colon label
Give leading, trailing, top, bottom to info label
change Horizontal content hugging priority of info Label to 252.
please check the below images for more details.
The actual structure of my example
Constraints for Heading label
Constraints for info-label
output
If you need any help then feel free to ask again.
I am trying to arrange controls in the storyboard using constrains via Interface Builder ("Any Width, Any Height" case). I add there UIView, however, when I press update frames for this element (Selected Views case) according to the given constrains UIView disappears from my view. I guess it size becomes zero. Later on, it is not show up in the screen after the run. The issue is also reported in the issue navigator: Horizontal Position of UIView is ambiguous (marked with the green shape). Anyway, if I set the constrain for width or height (size parameters) together with the constrain of ratio, then the issue disappears, I can update frames, it shows up in the screen during the run.
I am adding the picture with the green marks to make the issue more clear:
The question is whether the parameters of the size are obligatory when I am setting the constrains.
Even if they are obligatory how I can make the size to fit different sizes of the screens or iPhone+iPad because if I set/fix the size it could too big for some screens.
The size is not mandatory. The warning tells you that you must set an X position for this view (constraint between the superView left or right border and the left / right border of the view itself). If you want the view to resize itself to fit each screen size you must set both left and right constraint without the size constraint.
You shouldn't used fixed size (width or height) for view that change size when screen dimension change.
If you want view that fix aspect ratio you can set size that relative to Superview's width or height using:
1) leading and trailing and make sure that
view.leading = superview.leading + fixed_margin
view.trailing = superview.trailing - fixed_margin
and not other way around.
2) equal width or equal height with multiplier, constant relative to superview as you want
So you don't need evil size class.
I have three labels
There is a button above each label
I have added constraints for each label : align trailing and leading to button, as well as top space to button
Also, I have set the font size to 14, and Autoshrink Minimum Font Scale to 0.5
I want these three labels to have the same font size and to shrink and expand themselves according to screen size
But unfortunately they differs in their sizes according to the text
Any help? Thanks
-> Give fixed width constraint to all the labels.
-> Give only leading space constraint to first label.
-> Give only trailing space constraint to last label label.
-> Give align centre x(centre horizontally) constraint to middle label.
I have a multiline UILabel inside a custom keyboard extension. I want this label to grow to fill the content up to a certain height, at which point I want it to just cut off the rest of the text.
Because the keyboard has different heights depending on the device and orientation, I can't just set a simple less than or equal height constraint.
What I tried was to constrain the bottom of the label to the top of the buttons below, with a greater than or equal constraint. This works to a certain extent, but causes the keyboard to grow in size as opposed to the label being forced to cut off its text.
How would I force the label to a max height, without directly using a height constraint on the label?
Put the label in a UIView and constrain the view's height to less than or equal.
I'm trying to adjust my label size based on screen size using swift. I'm using the dynamic layout and cannot figure it out. Essentially what I am looking to do is shrink the text/font size to fit within my frame.
You can do this all in the storyboard.
Add constraints between the leading and trailing edges of the label and its superview. (Something like |-[label]-| in the visual format.) This will adjust the width of the label as the width of its superview changes.
If you want the font size to adjust as well, you can set the Autoshrink item in the storyboard to Minimum Font Scale and set an appropriate value (0.5 is the default).