Angular Material2 主题 - 如何设置应用程序背景? [英] Angular Material2 theming - how to set app background?
问题描述
我正在使用 angular material2 构建一个 angular2 应用程序.我正在尝试以正确的方式"设置我的应用程序的背景，但我不知道如何.
I am building an angular2 app using angular material2. I am trying to set the background of my application "the correct way", but I can't figure out how.
我找到了一个可以在我的 <body> 元素上使用的类:mat-app-background 我可以添加它，它给了我一个默认颜色(取决于关于我是使用浅色还是深色主题).
I found a class I can use on my <body> element: mat-app-background which I can add, that gives me a default color (depending on whether I'm using the light or dark themes).
我想定义此背景颜色以使用我品牌的颜色，但我不知道如何去做.
I wish to define this background color to use my brands' color, but I cannot figure out how to do it.
在_theming.scss中是这样定义的:
// Mixin that renders all of the core styles that depend on the theme.
@mixin mat-core-theme($theme) {
@include mat-ripple-theme($theme);
@include mat-option-theme($theme);
@include mat-pseudo-checkbox-theme($theme);
// Wrapper element that provides the theme background when the
// user's content isn't inside of a `md-sidenav-container`.
.mat-app-background {
$background: map-get($theme, background);
background-color: mat-color($background, background);
}
...
}
所以我认为以某种方式尝试将背景颜色添加到我的自定义主题是有意义的，但我不明白该怎么做.
So I thought it would make sense to try adding the background color to my custom theme, somehow, but I couldn't understand how to do so.
在 Material2 theming 文档中，它只说:
On the Material2 theming documentation it only says:
在 Angular Material 中，一个主题是通过组合多个调色板来创建的.特别是，一个主题包括:
"In Angular Material, a theme is created by composing multiple palettes. In particular, a theme consists of:
- 主要调色板:在所有屏幕和组件中使用最广泛的颜色.
- 重点调色板:用于浮动操作按钮和交互元素的颜色.
- 警告调色板:用于传达错误状态的颜色.
- 前景调色板:文本和图标的颜色.
- 背景调色板:用于元素背景的颜色."
如何将我的背景添加到主题中，或以任何其他方式添加?
How can I add my background to the theme, or do it in any other way?
推荐答案
如果您想以干净的方式更改整个应用程序的主题背景颜色，您可以使用以下内容覆盖您的主题.
If you want to change the theme's background color for the entire app in a clean way, you can override your theme with the following.
// Set custom background color
$custom-background-color: map_get($mat-blue-grey, 50);
// -or- Can set colour by hex value too
$custom-background-color: #628cc9;
$background: map-get($theme, background);
$background: map_merge($background, (background: $custom-background-color));
$theme: map_merge($theme, (background: $background));
这假设您已经使用 mat-light-theme 或 mat-dark-theme 设置了 $theme.当然，您可以将 $mat-blue-grey 替换为您选择的颜色图.
This assumes you have already set up your $theme using mat-light-theme or mat-dark-theme. Of course you can substitute $mat-blue-grey for a color map of your choosing.
这是我如何使用它的完整示例.我在名为 theme.scss 的文件中有以下内容，该文件包含在我的 angular.json styles"中条目:
Here is a full example of how I am using this. I have the following in a file called theme.scss, which is included in my angular.json "styles" entry:
// Include the common styles for Angular Material. We include this here so that you only
// have to load a single css file for Angular Material in your app.
// Be sure that you only ever include this mixin once!
@include mat-core;
// Define the palettes for your theme using the Material Design palettes available in palette.scss
// (imported above). For each palette, you can optionally specify a default, lighter, and darker
// hue.
$primary: mat-palette($mat-red, 600, 400, 900);
$accent: mat-palette($mat-blue-grey, 500, 200, 700);
$background-color: map_get($mat-blue-grey, 50);
// The warn palette is optional (defaults to red).
$warn: mat-palette($mat-blue);
// Create the theme object (a Sass map containing all of the palettes).
$theme: mat-light-theme($primary, $accent, $warn);
// Insert custom background color
$background: map-get($theme, background);
$background: map_merge($background, (background: $background-color));
$theme: map_merge($theme, (background: $background));
// Include theme styles for core and each component used in your app.
// Alternatively, you can import and @include the theme mixins for each component
// that you are using.
@include angular-material-theme($theme);
@include my-app-theme($theme);
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