Android and iOS render fonts in vastly different ways. I'd like to be able to get their renders looking a little more similar, so I need to change the font-sizes and weights throughout my entire app depending on whether it's on iOS or android.
Obviously, going through every place font-size or weight is defined and adding a conditional for is out of the question, and (fortunately) I already have all my font sizes and weights defined by sass variables.
Regardless of whether or not there is a better solution than conditional sass variables, I would like to know:
How can I conditionally select sass variables in nativescript?
I know that modules will use MyModule.ios.css or MyModule.android.css depending on the os. Can I take advantage of that?
Yes, you are on right track. You can have MyVariable.android.scss and MyVariable.ios.scss to define different values for Sass variable. In my code sharing project I have MyVariable.scss as well that I use for HTML(Web).
I have created a sample playground for you here.
In my home.component.ios.scss
$labelfontSize: 10;
$labelfontColor: red;
.home-panel{
vertical-align: center;
font-size: 20;
margin: 15;
}
.description-label{
margin-bottom: 15;
color: $labelfontColor;
font-size: $labelfontSize;
}
and in my home.component.android.scss
$labelfontSize: 18;
$labelfontColor: green;
.home-panel{
vertical-align: center;
font-size: 20;
margin: 15;
}
.description-label{
margin-bottom: 15;
color: $labelfontColor;
font-size: $labelfontSize;
}
It shows red text in ios while in android text is green.
Related
I cannot find a good solution to this without using a vuetify fork, which isn't stable and appears to be the older version anyway. I will link to it in the comments.
The only way I can think to do this is to line up two data tables side by side, which creates problems in itself. I know there are other plugins/libraries that allow this, but I would really prefer to stick with vuetify. Has anyone had success with doing this?
My project is to create a grid that allows the user to set up a rotation. Each column (after the first one) is a dynamically created week (Friday's date is column header) that shows if there is an opening in a given organization. The struggle is to get enough weeks to show up on the screen at once. The first column is the organization. So, I want to know what organization my row is in for a given week as I scroll to the right. That's why I need to freeze the first column.
I'm open to other solutions - like a different way to show the header, perhaps, that would allow me to fit in 52 weeks worth of dates.
I am also searching for a solution to this. The nearest I have found is this complex bit of CSS Source
<style>
table > tbody > tr > td:nth-child(1),
table > thead > tr > th:nth-child(1) {
position: sticky !important;
position: -webkit-sticky !important;
left: 0;
z-index: 9998;
background: white;
}
table > thead > tr > th:nth-child(1) {
z-index: 9999;
}
</style>
However, it doesn't quite work for my case.
I have something like this
Account Jan Feb Mar
123456 50 51 52
123458 38 39 32
123600 20 21 22
So what I am looking for is the Excel equivalent of putting a freeze panes on the Jan,123456 intersection, so that the months stay in place when scrolling down, and the Account column stays in place when scrolling to the right.
I set the fixed-header and :height property on the v-data-table so that the header does not scroll vertically and so that it has a vertical scroll bar. The horizontal scroll bar seems to happen automatically and is specific to the table rather than the page.
Without the CSS the vertical scrolling works, though obviously not the horizontal scrolling as the Account column scrolls off screen to the left.
With the CSS the account numbers stay in position, but the headings still scroll to the left, so eg Jan replaces Account. Also when scrolling down, the Account Numbers scroll up to overwrite Account. It is closer to a solution than the basics provided by Vuetify.
I also saw the example from someone who had cloned vuetify and modified it to include fixed columns and grouping. However, I was not sure whether that was vuetify 1.5 or 2 and I have already had issues with seeing examples on 1.5 and then finding that they don't work on vue 2 which I am using as there were so many breaking changes. Like you I am also wary of adopting something that may not be supported.
I am surprised that Vuetify did not include this. It must be a pretty common requirement. I have seen an enhancement request for Vuetify 3, but it is too early to adopt that and presumably it would also mean adopting Vue 3.
Regards
Paul Simon
I finally found an approach to this that works. Another approach
However, I cannot really claim it as an answer to the original question as it only works by abandoning the use of a v-data-table altogether. I ended up just putting a standard table in between v-spacer in my vuetify card. Any attempt to use even a v-simple-table added a second unnecessary horizontal scroll bar which ruined the effect.
The bit of CSS linked above does at least give fixed header(s) and fixed column(s) with none of the issues around scrolling up over the top left corner cell of other approaches I have seen.
It is also very easy to mark which headers you want fixed (usually all) and, in particular, which columns you want fixed. Note that the fixed columns should use 'th' rather than 'td'. This is ideal for my purpose since my data source is multi-dimensional and returns row headers and then cells with numbers eg
Actual Actual Budget Budget
Country Product Jan Feb Jan Feb
UK Widget1 50 60 70 20
UK Widget2 60 80 90 100
USA Widget1 90 80 10 90
In the example above all the following are 'th'
Actual, Budget, Jan, Feb
Country, Product
Only the number cells are 'td'
As you can see, all you need to do is to mark the 'th' in the html with class="fixed" so unlike other approaches it works for an arbitrary number of columns rather than just the left most column.
I am an expert in multi-dimensional modelling, and certainly not an expert in CSS, but I modified the CSS in the linked example a little. My CSS is as follows:
<style scoped>
.table {
background-color: white;
margin: auto;
width:90%;
max-width:100%;
border-collapse: separate;
display: block;
overflow-x: scroll;
}
thead,
tbody {
display: inline-block;
}
thead {
position: sticky;
top: 1px;
z-index: 2;
}
tbody {
height: 200px;
}
th {
background-color: lightgrey;
border-left: 1px;
border-right: 1px;
border-color: black;
}
td,
th {
min-width: 100px;
max-width: 100px;
word-wrap: break-word;
}
.fixed {
position: sticky;
width: 5em;
left: 0;
top: auto;
z-index: 1;
}
td:not(.fixed) {
z-index: 0;
}
</style>
Instead of giving a fixed width for the table, I used %. I know that not all browsers support this but this is going to be an internal application. It is not a shopping site.
I also took the z-indexes down from 9999,999,0 to 2,1,0 as without this it tended to wind up on top of the Vuetify footer when scrolling down.
Regards
Paul Simon
I am using Sublime Text 2 and LiveReload to compile my .scss file. I also tried codekit with the same problem.
Using + and - work no problem, but * and / don't compile.
font-size: 30px / 2px; doesn't compile to font-size: 15px;
but
font-size: 30px + 2px; does compile to font-size: 32px;
Any ideas? The code hinting also doesn't seem to be working for the multiply and divide operators, could it be a package conflict? Seems unlikely.
Put it in parenthesis so SCSS understands you want it to do an arithmetic operation. Also, you do not want to divide px by another px number as this will result in a unitless number.
This is what you are looking for:
div {
font-size: (30px / 2)
}
I want to be able to do the following:
height: 25% - 5px;
Obviously when I do that I get the error:
Incompatible units: 'px' and '%'.
Sass cannot perform arithmetic on values that cannot be converted from one unit to the next. Sass has no way of knowing exactly how wide "100%" is in terms of pixels or any other unit. That's something only the browser knows.
You need to use calc() instead. Check browser compatibility on Can I use...
.foo {
height: calc(25% - 5px);
}
If your values are in variables, you may need to use interpolation turn them into strings (otherwise Sass just tries to perform arithmetic):
$a: 25%;
$b: 5px;
.foo {
width: calc(#{$a} - #{$b});
}
There is a calc function in both SCSS [compile-time] and CSS [run-time]. You're likely invoking the former instead of the latter.
For obvious reasons mixing units won't work compile-time, but will at run-time.
You can force the latter by using unquote, a SCSS function.
.selector { height: unquote("-webkit-calc(100% - 40px)"); }
$var:25%;
$foo:5px;
.selector {
height:unquote("calc( #{$var} - #{$foo} )");
}
IF you know the width of the container, you could do like this:
#container
width: #{200}px
#element
width: #{(0.25 * 200) - 5}px
I'm aware that in many cases #container could have a relative width. Then this wouldn't work.
Sorry for reviving old thread - Compass' stretch with an :after pseudo-selector might suit your purpose - eg. if you want a div to fill width from left to (50% + 10px) of screen you could use (in SASS indented syntax):
.example
background: red
+stretch(0, -10px, 0, 0)
&:after
+stretch(0, 0, 0, 50%)
content: ' '
background: blue
The :after element fills 50% to the right of .example (leaving 50% available for .example's width), then .example is stretched to that width plus 10px.
Just add the percentage value into a variable and use #{$variable}
for example
$twentyFivePercent:25%;
.selector {
height: calc(#{$twentyFivePercent} - 5px);
}
I have the following css:
.btn_container {
cursor: pointer;
font-family: Tahoma,Verdana,Arial;
font-size: 11px;
padding: 0;
width: auto;
}
.btn_center {
background: blue;
color: #FFFFFF !important;
display: block;
float: left;
font-weight: bold;
height: 32px;
line-height: 32px;
padding: 0 10px;
}
line-height of 30 lines up center in firefox, but 32 in webkit.
I know browsers will render things differently, but i've never had a problem getting text to center properly.
In the following example you can see that it drops a couple px lower in firefox:
http://jsfiddle.net/mstefanko/EGzEB/5/
I've done heavy testing of this in the past. I call it text jiggle. It's not something you can control. All you can do to minimize it is apply an explicit line-height (especially one in px) to every text element.
The default line-height varies by a wide margin in different browsers, and for different font families at different font sizes. Setting an explicit line-height addresses that.
But within that, the exact placement of the text within the line-height space will vary slightly browser-to-browser no matter what you do. For some combinations of font-size and line-height, all browsers match up. For instance, Arial at font-size:11px and line-height:14px renders the same in FF, Webkit, and IE. But change the line-height to 13px or 15px, and it varies by 1px browser-to-browser.
There's no standard or defined behavior for it. It's the result of how that particular font-family, font-size, and line-height happens to be rendered by the browser on that operating system. Arial, for instance, is a relatively consistent font, generally not varying by more than 1px as long as an explicit line-height is defined, while Helvetica varies by as many as 4 to 6 pixels.
I had the opposite experience actually. I noted that some header elements were positioned higher in IE7/compatibility mode as well as Chrome/Safari. So after much trouble I inspected with chrome and saw -webkit-margin-before: 1.6em or something added to the headers. Adding that value and tweaking it didn't work because it effected the height of the header which pushed some elements down but the padding option worked well for me ...
I found that this worked for me:
H1, H2, H3, H4, H5, a.mainTab div {
-webkit-padding-before: 1px;
}
a.mainTab div had spans which wouldn't respond to the padding/margin so wrapped them in a div ... this may work for li span span headers as well.
hey guys,
somehow i can't find the solution for my little problem.
i have a paragraph setting with a max-width of 630px.
in some cases i have images within one of those paragraphs - and in this case i want the image to act normal -> without any max-width setting.
.post-body p {
width:99%;
max-width: 630px;
}
.post-body p img{
max-width:100% !important;
}
is it even possible to have the image larger than the max-width setting that's set to it's parent? do i need to use javascript (jquery)?
thank you for your help.
Unless you're modifying the image width some other way, as long as you don't do anything to the image it will display at full size.
See here: http://jsfiddle.net/WrfQQ/
I didn't bother declaring any CSS for the image, so it, by default, will show up at full size. (Please note, for the sake of testing I decreased the width of the p to 100px)
As I can see the problem is that you put a MAX-width to the img... you have to code the relative width... so:
.post-body p img{
position: relative;
width: 100%;
}
if you want it in jQuery the code is the below:
$('.post-body p img').width() == $('.post-body p').width();