切换角度材料中的主题5 [英] Switch themes in angular material 5
问题描述
我一直在阅读一些有关此的文章，但它们似乎在几种不同的方式上存在冲突.我希望重新创建与最新版本的角度材料文档站点相同的主题切换角材料[5.0.0-rc0]
I been reading a few articles on this but they seem to be conflicting in several different ways. I am hoping to re-create the same theme switching as the angular material documentation site for the latest version of angular material [5.0.0-rc0]
我有两个自定义主题，这是custom-theme.scss，还有light-custom-theme.scss，几乎完全相同，没有mat-dark-theme.
I have two custom themes, this is custom-theme.scss and there is light-custom-theme.scss which is nearly identical, sans the mat-dark-theme
@import '~@angular/material/theming';
$custom-theme-primary: mat-palette($mat-blue);
$custom-theme-accent: mat-palette($mat-orange, A200, A100, A400);
$custom-theme-warn: mat-palette($mat-red);
$custom-theme: mat-dark-theme($custom-theme-primary, $custom-theme-accent, $custom-theme-warn);
@include angular-material-theme($custom-theme);
我的styles.scss看起来像这样
My styles.scss looks like so
@import '~@angular/material/theming';
@include mat-core();
@import 'custom-theme.scss';
@import 'light-custom-theme.scss';
.custom-theme {
@include angular-material-theme($custom-theme);
}
.light-custom-theme {
@include angular-material-theme($light-custom-theme);
}
然后在index.html <body class="mat-app-background">
And then it's called in the index.html <body class="mat-app-background">
当我做一个主题时，一切都很好.但是我试图在两者之间切换.将两个主题都添加到angular-cli.json中，light-custom-theme就会接管
Everything works fine when I do one theme. But I am trying to switch between the two. Adding both themes into angular-cli.json, the light-custom-theme takes over
"styles": [
"styles.scss",
"custom-theme.scss",
"light-custom-theme.scss"
],
我在其中一个组件中放置了以下代码来处理切换主题
I have the following code in place in one of my components to handle toggling themes
toggleTheme(): void {
if (this.overlay.classList.contains("custom-theme")) {
this.overlay.classList.remove("custom-theme");
this.overlay.classList.add("light-custom-theme");
} else if (this.overlay.classList.contains("light-custom-theme")) {
this.overlay.classList.remove("light-custom-theme");
this.overlay.classList.add("custom-theme");
} else {
this.overlay.classList.add("light-custom-theme");
}
}
但是无论何时运行，主题都保持不变.值得一提的是，overlay.classList
But whenever it runs the theme remains the same. For what it is worth, there is already a "cdk-overlay-container" object at position 0 in overlay.classList
0:"cdk-overlay-container"
1:"custom-theme"
length:2
value:"cdk-overlay-container custom-theme"
我不确定如何调试此方法，因为角形材料文档并没有给我太多工作，任何帮助将不胜感激！
I am unsure how to debug this as the angular material documentation doesn't give me too much to work with, any help would be appreciative!
谢谢！
推荐答案
这是Angular 5.1 +/Angular Material 5.0+的替代解决方案.
Here's an alternative solution for Angular 5.1+/Angular Material 5.0+.
*如前所述，它仍适用于Angular 7 +.
* As noted, this still works in Angular 7+.
有效的可编辑示例- https://stackblitz.com/edit/dynamic-material-theming
在theme.scss中，包括一个默认主题(注意，它没有保留在类名下，因此Angular会将其用作默认名称)，然后是一个明暗主题.
In theme.scss, include a default theme(notice it isn't kept under a class name - this is so Angular will use it as the default), and then a light and dark theme.
theme.scss
@import '~@angular/material/theming';
@include mat-core();
// Typography
$custom-typography: mat-typography-config(
$font-family: Raleway,
$headline: mat-typography-level(24px, 48px, 400),
$body-1: mat-typography-level(16px, 24px, 400)
);
@include angular-material-typography($custom-typography);
// Default colors
$my-app-primary: mat-palette($mat-teal, 700, 100, 800);
$my-app-accent: mat-palette($mat-teal, 700, 100, 800);
$my-app-theme: mat-light-theme($my-app-primary, $my-app-accent);
@include angular-material-theme($my-app-theme);
// Dark theme
$dark-primary: mat-palette($mat-blue-grey);
$dark-accent: mat-palette($mat-amber, A200, A100, A400);
$dark-warn: mat-palette($mat-deep-orange);
$dark-theme: mat-dark-theme($dark-primary, $dark-accent, $dark-warn);
.dark-theme {
@include angular-material-theme($dark-theme);
}
// Light theme
$light-primary: mat-palette($mat-grey, 200, 500, 300);
$light-accent: mat-palette($mat-brown, 200);
$light-warn: mat-palette($mat-deep-orange, 200);
$light-theme: mat-light-theme($light-primary, $light-accent, $light-warn);
.light-theme {
@include angular-material-theme($light-theme)
}
在app.component文件中，包括@ angular/cdk/overlay中的OverlayContainer.您可以在 https://material.angular.io/guide/theming 中找到Angular的文档. ;尽管它们的实现有些不同.请注意，我还必须将OverlayModule作为导入也包含在app.module中.
In the app.component file, include OverlayContainer from @angular/cdk/overlay. You can find Angular's documentation for this here https://material.angular.io/guide/theming; though their implementation is a little different. Please note, I also had to include OverlayModule as an import in app.module as well.
在我的app.component文件中，我还声明了@HostBinding('class') componentCssClass;作为变量，该变量将用于将主题设置为类.
In my app.component file, I also declared @HostBinding('class') componentCssClass; as a variable, which will be used to set the theme as a class.
app.component.ts
import {Component, HostBinding } from '@angular/core';
import { HttpClient } from '@angular/common/http';
import { OverlayContainer} from '@angular/cdk/overlay';
@Component({
selector: 'app-root',
templateUrl: './app.component.html',
styleUrls: ['./app.component.css'],
})
export class AppComponent {
constructor(public overlayContainer: OverlayContainer) {}
@HostBinding('class') componentCssClass;
onSetTheme(theme) {
this.overlayContainer.getContainerElement().classList.add(theme);
this.componentCssClass = theme;
}
}
app.module.ts
import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { HttpClientModule } from '@angular/common/http';
import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
import { MatCardModule } from '@angular/material/card';
import { MatButtonModule } from '@angular/material/button';
import { AppComponent } from './app.component';
import { OverlayModule} from '@angular/cdk/overlay';
@NgModule({
declarations: [
AppComponent,
],
imports: [
BrowserModule,
HttpClientModule,
BrowserAnimationsModule,
MatCardModule,
MatButtonModule,
OverlayModule
],
providers: [],
bootstrap: [AppComponent]
})
export class AppModule {}
最后，从您的视图中调用onSetTheme函数.
Finally, call the onSetTheme function from your view.
app.component.html
<button mat-raised-button color="primary" (click)="onSetTheme('default-theme')">Default</button>
<button mat-raised-button color="primary" (click)="onSetTheme('dark-theme')">Dark</button>
<button mat-raised-button color="primary" (click)="onSetTheme('light-theme')">Light</button>
您可能会考虑使用可观察的对象，以使功能更加动态.
You might consider using an observable so that the functionality would be more dynamic.
这篇关于切换角度材料中的主题5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IT屋！
