Angular Material 主题不会更改垫子对话框强调色

uro*_*oti 4 css sass angular-material angular

我需要根据参数更改应用程序的颜色主题,这应该是一个非常简单的操作。在我的应用程序中,我使用 Fuse 角度材质主题。当我尝试从主要主题切换到次要主题时,对话框组件的强调色不会更改,而其他组件(例如导航栏)会更改。

_主题.scss

@import '~@angular/material/theming';
@import './component-themes';

$primary: mat-palette($mat-fusedark);
$accent: mat-palette($mat-light-blue, 600, 400, 700);
$warn: mat-palette($mat-red);
$white: mat-palette($mat-white);
$black: mat-palette($mat-black);

$first-theme: mat-light-theme($primary, $accent, $warn);

$background: map-get($first-theme, background);
$foreground: map-get($first-theme, foreground);

@include angular-material-theme($first-theme);
@include component-themes($first-theme);

$second-primary: mat-palette($mat-fusedark);
$second-accent: mat-palette($mat-green, 600, 400, 700);
$second-warn: mat-palette($mat-red);

$second-theme: mat-light-theme($second-primary, $second-accent, $second-warn);

.second-theme {
  @include angular-material-theme($second-theme);
  @include component-themes($second-theme);
}
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组件主题.scss

@import "../partials/navigation";
@import "../partials/dialog";

@mixin component-themes($theme) {
  @include navigation-theme($theme);
  @include dialog-theme($theme);
}
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_dialog.scss

@import '~@angular/material/theming';

    @mixin dialog-theme($theme) {
      $accent: map-get($theme, accent);
    
      .dialog-wrapper {
        .mat-dialog-container {
          padding: 0;
          overflow: hidden;
        }
    
        .mat-dialog-title {
          display: flex;
          flex: 1 1 auto;
          justify-content: space-between;
          margin: 0;
          padding: 24px;
    
        }
    
        .mat-toolbar {
          background-color: mat-color($accent) !important;
        }
    
        .mat-dialog-content {
          padding: 16px 32px 0px;
          margin: 0;
        }
    
        .mat-dialog-actions {
          display: flex;
          flex: 1 1 auto;
          margin: 1px 0 0 0;
          padding: 0px 32px 16px;
        }
    
      }
    }
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如果我更改 _dialog.scss 中的值

background-color: mat-color($accent) !important;
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进入

background-color: green !important;
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它工作正常。看起来mat-color($accent)不起作用,但仅适用于该组件的 scss。

uro*_*oti 5

对于遇到这个问题的人,我终于找到了解决方案。我无法更改某些组件的主题,因为它们是嵌套的,并且覆盖容器会阻止主题传播。为了修复这个问题,我导入了overlayContainer,并在ngOnInit方法中将主题类添加到overlayContainer中。

import {OverlayContainer} from '@angular/cdk/overlay';

constructor(
    private overlayContainer: OverlayContainer
  ) {}

ngOnInit() {
    if (this.data.theme === 'second-theme') {
          this.overlayContainer.getContainerElement().classList.add(this.data.theme);
        }
}
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当您知道问题是什么时,解决方案非常简单,困难的部分是找出它:)