在弹性布局中将最后一行的项目包装在一起，并在对齐之间留有间隔

Question

Is there any way to have wraped items in rows with space between alignment, where last row dont have big gap?

<div fxFlex="row wrap" fxLayoutAlign="space-around">
    <my-item *ngFor="let item of items"></my-item>
</div>

Actual behaviour:

I need same "space-between" in last row compared to other rows.

Answer 1

The quickest way to get what you're looking for is to add an empty element after the last visible element:

<!-- your last 3 boxes -->
<div class="gray-box">
  (your content)
</div>

<div class="gray-box">
  (your content)
</div>

<div class="gray-box">
  (your content)
</div>

<!-- an empty box - make sure .transparent has opacity: 0-->
<div class="gray-box transparent"></div>

If you're okay with not using flexbox, display: grid is more along the lines of what you're looking for, where you can define grid sizes more strictly:

display: grid;
grid-template-columns: repeat(4, 25%);
grid-gap: /* gap between your items */

Answer 2

You can use "filler" elements. You need 3 elements at the end of your list which are no visible. Everytime when your row breaks the filler helping to keep the right sizes and spaces.

 const addbutton = document.getElementsByClassName('add'); // referenceNode.parentNode.insertBefore(newNode, referenceNode.nextSibling); const addEl = () => { const newli = document.createElement('li'); newli.textContent = 'new flex child'; const pos = document.querySelector('li.filler'); pos.parentNode.insertBefore(newli, pos.previousElementSibling.nextSibling); } addbutton[0].addEventListener('click', addEl); 

 body { display: flex; } ul { display: flex; flex-flow: row wrap; justify-content: space-between; padding: 0; flex: 1; } ul>li { flex: 0 1 24%; background: #ccc; display: block; height: 40px; margin-bottom: 20px; } ul>li.filler { height: 0; padding: 0; } button { background: #333; color: white; border: none; padding: 5px; flex: 0 0 100px; height: 100px; margin: 10px; } 

 <button class="add">click here to add childs</button> <ul> <li>lorem</li> <li>lorem</li> <li>lorem</li> <li>lorem</li> <li>lorem</li> <li>lorem</li> <li class="filler"></li> <li class="filler"></li> <li class="filler"></li> </ul> 

Answer 3

I'm just guessing on your html and css structure here, but I assume you have something like this:

 .wrapper { width: 1000px; display: flex; flex-wrap: wrap; justify-content: space-between; } .item { background: gray; width: 200px; height: 100px; border: 1px solid black; } 

 <div class="wrapper"> <div class="item"></div> <div class="item"></div> <div class="item"></div> <div class="item"></div> <div class="item"></div> <div class="item"></div> <div class="item"></div> </div> 

You can keep the same spacing around each element by using a simple margin and setting the justify-content attribute to either center or flex-start based on your needs.

 .wrapper { width: 1000px; display: flex; flex-wrap: wrap; justify-content: flex-start; } .item { background: gray; width: 200px; height: 100px; border: 1px solid black; margin: 0 20px; } 

 <div class="wrapper"> <div class="item"></div> <div class="item"></div> <div class="item"></div> <div class="item"></div> <div class="item"></div> <div class="item"></div> <div class="item"></div> </div>