如何更改角度材质步进器步进图标的颜色

Answer 1

error = true;

    .preenchimento-incompleto {
      background-color: black !important;
    }

    .preenchimento-ok {
      background-color: greenyellow !important;
    }

<mat-step  id="idDadosPessoaisFormGroup5" name="idDadosPessoaisFormGroup5" [ngClass]="error ? 'preenchimento-incompleto' : 'preenchimento-incompleto'" [stepControl]="dadosPessoaisFormGroup">
        <form [formGroup]="dadosPessoaisFormGroup">
          <ng-template matStepLabel>DADOS<br> PESSOAIS</ng-template>
          <app-dados-pessoais [container]="stepper"></app-dados-pessoais>
        </form>
      </mat-step>

Answer 2

当然，您可以使用自己的CSS并自定义背景

有几个SCSS，这是我的步进器的外观：我在下面添加了自定义标签和图标所需的SASS代码段：

.mat-step-header .mat-step-icon-state-done, .mat-step-header .mat-step-icon-state-edit {
  background-color: transparent !important;
  color: $success;
  +.mat-step-label{
    color: $success !important;
  }
}

.mat-step-header .mat-step-icon-selected{
  // background-color: $primary;
  background-color: transparent !important;
  color: $primary;
  +.mat-step-label{
    color: $primary !important;
  }
}

Todo/默认步骤

.mat-step-header .mat-step-label{
    color: rgba(0, 0, 0, .54)
}
.mat-step-header .mat-step-icon {
    color: rgba(0, 0, 0, .54);
    background-color: transparent;
}

用于覆盖默认图标的HTML:我使用了字体很棒的图标来覆盖默认图标:

<mat-horizontal-stepper>
    <!-- Icon overrides. -->
    <ng-template matStepperIcon="edit">
        <i class="fa fa-check-circle"></i>
    </ng-template>
    <ng-template matStepperIcon="active">
        <i class="fa fa-dot-circle-o"></i>
    </ng-template>
    <ng-template matStepperIcon="done">
        <i class="fa fa-dot-circle-o"></i>
    </ng-template>
    <ng-template matStepperIcon="number">
        <i class="fa fa-dot-circle-o"></i>
    </ng-template>
</mat-horizontal-stepper>

注意：所有SCS都应该在全局样式表中，而不是在特定于组件的样式表中。如果样式存在于角度组件的文件中，则由于视图封装，将不会应用该样式。

$success:       #35A255 !default;
$primary:       #007CBB !default;

Answer 3

似乎并没有改变垫子步进器图标颜色的选项，您可以使用此css作为解决方案。

 ::ng-deep .mat-step-header .mat-step-icon-selected {
    background-color: red; 
 }

* ng-deep已弃用，可以删除，也可以使用

视图封装。组件修饰符中无，以避免使用：：ng deep

更新问题的解决方案

html文件示例

 <div class="yellow-theme"> <----- wrapper theme class
     <button mat-raised-button (click)="isLinear = !isLinear" id="toggle- 
      linear">
            {{!isLinear ? 'Enable linear mode' : 'Disable linear mode'}}
          </button>
          <mat-horizontal-stepper [linear]="isLinear" #stepper>
            <mat-step [stepControl]="firstFormGroup">
              <form [formGroup]="firstFormGroup">
                <ng-template matStepLabel>Fill out your name</ng-template>
                <mat-form-field>
                  <input matInput placeholder="Last name, First name" 
                  formControlName="firstCtrl" required>
                </mat-form-field>
                <div>
                  <button mat-button matStepperNext>Next</button>
                </div>
              </form>
            </mat-step>
            <mat-step [stepControl]="secondFormGroup">
              <form [formGroup]="secondFormGroup">
                <ng-template matStepLabel>Fill out your address</ng-template>
                <mat-form-field>
                  <input matInput placeholder="Address" formControlName="secondCtrl" required>
                </mat-form-field>
                <div>
                  <button mat-button matStepperPrevious>Back</button>
                  <button mat-button matStepperNext>Next</button>
                </div>
              </form>
            </mat-step>
            <mat-step>
              <ng-template matStepLabel>Done</ng-template>
              You are now done.
              <div>
                <button mat-button matStepperPrevious>Back</button>
                <button mat-button (click)="stepper.reset()">Reset</button>
              </div>
            </mat-step>
          </mat-horizontal-stepper>

 "styles": [
          "src/styles.css",
          "src/theme.scss"
           ]

注意步进器将采用原色的颜色

theme.scss

 @import '~@angular/material/theming';
 @include mat-core();

 .yellow-theme {
     $yellow-theme-primary: mat-palette($mat-yellow, 400);
     $yellow-theme-accent:  mat-palette($mat-yellow, 400);

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

     @include angular-material-theme($yellow-theme);
 }

自定义主题类可以跨应用程序使用，只需包装任何材料组件，并使用类中定义的颜色属性primary、accent或warn。包装在自定义类中的组件将使用该颜色，如果颜色不是从全局主题中设置的。