Paper-fab部分隐藏在应用程序工具栏的后面 | fab部分隐藏在应用程序工具栏的后面

本文介绍了Paper-fab部分隐藏在应用程序工具栏的后面的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我想导入一个包含paper-fab的元素，并使paper-fab与app-header元素和导入的元素之间的接缝重叠. (在这种情况下，我将导入的元素称为fab-element).换句话说，我只是希望paper-fab能够浮动"(如广告所宣传的那样，也应该像它应该的那样).

I want to import an element that contains a paper-fab and have the paper-fab overlap the seam between the app-header element and the imported element. (In this case, I'm calling the imported element a fab-element). In other words, I simply want the paper-fab to "float" (as advertised and like it's supposed to).

我希望它看起来像什么

jsBin

实际上是什么样的:

FAB. (有效)单击此处获取jsBin .
FAB在app-toolbar之外但在app-header内部. (有效)单击此处获取jsBin .
app-header外部和main-content内部的FAB. (失败)单击此处获取jsBin .

FAB inside app-toolbar. (works) Click here for jsBin.
FAB outside app-toolbar but inside app-header. (works) Click here for jsBin.
FAB outside app-header and inside main-content. (fails) Click here for jsBin.

我需要使用app-header-layout元素并将fab-element导入到main content部分中.如上述3个jsBins所示，最后一种组合似乎破坏了元素(导致paper-fab的上半部分隐藏在app-toolbar的下面).

I need to use the app-header-layout element and import the fab-element inside the main content section. As the above 3 jsBins show, that last combination seems to break the element (causing the top half of the paper-fab to hide underneath the app-toolbar).

在app-header-layout的main content部分中使用fab-element时，如何使整个paper-fab漂浮在app-toolbar上?

How do I get the entire paper-fab to float over the app-toolbar while using the fab-element inside the main content section of the app-header-layout?

或者这是否可能暴露出app-header-layout元素本身的可能错误?

Or does this potentially expose a possible bug in app-header-layout element itself?

z-index(在paper-fab上)无效.

请注意，最后一个示例将z-index增加到了99999.它似乎仍然对输出没有影响.

Notice the last example has the z-index increased to 99999. It still seems to have no effect on the output.

z-index(在父元素上)无效.

z-index (on parent element) has no effect.

此外，在父元素fab-element上设置z-index也不会影响结果.

Also, setting the z-index on the parent element fab-element also has no impact on the result.

我想知道与该问题中所述的z-index (阅读评论)是否相关?

I wonder if what's happening with the z-index described in this question (read the comments) is related?

推荐答案

聚合物松弛网站上的每个@robodna提供以下答案:

Per @robodna on Polymer Slack Site provides the following answer:

在#contentContainer上设置z-index:2!important.请参阅此jsBin .

<!doctype html>
<head>
  <meta charset="utf-8">
  <base href="https://polygit.org/components/">
  <script src="webcomponentsjs/webcomponents-lite.min.js"></script>
  <link href="polymer/polymer.html" rel="import">
  <link href="iron-icon/iron-icon.html" rel="import">
  <link href="iron-icons/iron-icons.html" rel="import">
  <link href="paper-icon-button/paper-icon-button.html" rel="import">
  <link href="app-layout/app-drawer/app-drawer.html" rel="import">
  <link href="app-layout/app-drawer-layout/app-drawer-layout.html" rel="import">
  <link href="app-layout/app-header-layout/app-header-layout.html" rel="import">
  <link href="app-layout/app-header/app-header.html" rel="import">
  <link href="app-layout/app-toolbar/app-toolbar.html" rel="import">
  <link href="paper-fab/paper-fab.html" rel="import">

</head>
<body>

<dom-module id="fab-element">
  <template>
    <style>
      paper-fab {
        position: absolute;
        right: 40px;
        top: 40px;
        z-index: 99999;
      }
    </style>
    <paper-fab icon="add"></paper-fab>
  </template>
  <script>
    (function(){
      Polymer({
        is: "fab-element",
        properties: {},
      });
    })();
  </script>
</dom-module>

<dom-module id="x-element">

<template>
  <style>
    app-toolbar {
      color: white;
      background-color: #3F51B5;
      z-index: 1;
    }
    app-header-layout ::content #contentContainer {
      z-index: 2!important;
    }
    fab-element {
      z-index: 99999;
    }
  </style>

  <app-header-layout>
    <app-header fixed condenses effects="waterfall">
      <app-toolbar>
        <div main-title>App name</div>
      </app-toolbar>
    </app-header>
    <div>
      main content
      <fab-element></fab-element>
    </div>
  </app-header-layout>

</template>

<script>
  (function(){
    Polymer({
      is: "x-element",
      properties: {},
    });
  })();
</script>

</dom-module>

<x-element></x-element>

</body>

这篇关于Paper-fab部分隐藏在应用程序工具栏的后面的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！