flexbox 和 wrap 属性 [英] flexbox and wrap property

问题描述

我正在使用 phonegap 开发和应用程序.我想使用 flexbox 在我的主要应用程序区域中布局一些按钮.

有人可以解释为什么这个 http://jsfiddle.net/apYLB/ 没有将元素包裹在最新的铬?

HTML:

<div class="flex-item">1</div><div class="flex-item">2</div><div class="flex-item">3</div><div class="flex-item">4</div><div class="flex-item">5</div><div class="flex-item">6</div>

CSS:

.flex-container {显示:-webkit-box；显示:弹性；flex-wrap: 包裹;-webkit-flex-wrap:包裹；-ms-flex-wrap:包裹；-webkit-flex-direction: 行；-webkit-flex-flow:行换行；flex-flow:行包装；-webkit-box-align: 结束；-moz-box-align:结束；框对齐:结束；-webkit-box-pack: 中心；-moz-box-pack:中心；盒装:中心；justify-content:space-around;高度:100%；}.flex-item {边距:0 10px 25px 0;宽度:86px；边框:1px 实心 #000;}.flex-item img {最大高度:80px；}

它们是水平放置的，只出现了 3 个半盒子.

解决方案

这里有很多地方不太对劲.首先，您将旧属性与新属性混合在一起(display: -webkit-box 来自 2009 草案，但 -webkit-flex-flow 来自标准草案).

其次，2009 年的 Flexbox 实现都不支持 box-lines: multiple，这是启用包装所必需的.遗憾的是，几乎所有的移动设备都只支持 2009 年的草案.支持现代规范的 Firefox 版本目前也不支持包装(flex-flow 和 flex-wrap 是支持的属性，但不支持与包装相关的值).

第三，您有 justify-content: space-around，但它的 2009 版本设置为 box-pack: center.中心是所有草稿的中心.

http://cssdeck.com/labs/ccamtvl5

.flex-container {显示:-ms-flexbox；显示:-webkit-flex；-webkit-flex-wrap:包裹；-ms-flex-wrap:包裹；flex-wrap: 包裹;-ms-flex-line-pack: 结束；-webkit-align-content: flex-end;对齐内容:flex-end；-ms-flex-pack:分发；-webkit-justify-content:空间环绕；justify-content:空间环绕；高度:100%；}@supports (flex-wrap: wrap) {/* 从不完整的 Firefox 版本中隐藏 */.flex 容器 {显示:弹性；}}

更新:自版本 28 起，包装现在可在 Firefox 中使用，但仅在使用现代属性时(不是旧的前缀属性，如 display: -moz-box).

I am developing and app with phonegap. I wanted to use the flexbox to layout some buttons in my main application area.

Can somebody explain why this http://jsfiddle.net/apYLB/ doesn't wrap elements in latest chrome?

HTML:

<div class="flex-container">
    <div class="flex-item">1</div>
    <div class="flex-item">2</div>
    <div class="flex-item">3</div>
    <div class="flex-item">4</div>
    <div class="flex-item">5</div>
    <div class="flex-item">6</div>
</div>

CSS:

.flex-container {
    display: -webkit-box;
    display: flex;
    flex-wrap: wrap;
    -webkit-flex-wrap: wrap;
    -ms-flex-wrap: wrap;
    -webkit-flex-direction: row;
    -webkit-flex-flow: row wrap;
    flex-flow: row wrap;
    -webkit-box-align: end;
    -moz-box-align: end;
    box-align: end;
    -webkit-box-pack: center;
    -moz-box-pack: center;
    box-pack: center;
    justify-content:space-around;
    height:100%;
}
.flex-item {
    margin:0 10px 25px 0;
    width:86px;
    border:1px solid #000;
}
.flex-item img {
    max-height:80px;
}

They are laid horizzontally and only 3 and a half boxes appear.

解决方案

You have quite a few things not quite right here. First, you're mixing old properties with new properties (display: -webkit-box is from the 2009 draft, but -webkit-flex-flow is from the standard draft).

Second, none of the 2009 Flexbox implementations support box-lines: multiple, which is required for enabling wrapping. Sadly, nearly all mobile devices support only the 2009 draft. Firefox versions that support the modern specification currently do not support wrapping either (flex-flow and flex-wrap are supported properties, but the values pertaining to wrapping are not supported).

Third, you've got justify-content: space-around, but its 2009 counterpart is set to box-pack: center. Center is center in all drafts.

http://cssdeck.com/labs/ccamtvl5

.flex-container {
  display: -ms-flexbox;
  display: -webkit-flex;
  -webkit-flex-wrap: wrap;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  -ms-flex-line-pack: end;
  -webkit-align-content: flex-end;
  align-content: flex-end;
  -ms-flex-pack: distribute;
  -webkit-justify-content: space-around;
  justify-content: space-around;
  height: 100%;
}
@supports (flex-wrap: wrap) { /* hide from incomplete Firefox versions */
  .flex-container {
    display: flex;
  }
}

Update: Wrapping now works in Firefox as of version 28, but only when using the modern properties (not the old prefixed ones like display: -moz-box).

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