Angular - Material: Progressbar custom color?

Question

I am now trying for hours. I use Material2 and simply want to change the color of the progress-bar. I know there are those themes (primary/accent/warn) but I want to have a custom color (green) for my progressbar.

I already tried the weirdest css-combinations.. but with no effort. Maybe someone had the same problem?

Answer 1

You can use ::ng-deep selector to achieve what you want, this answer has some info on it.

How I did it:

CSS

::ng-deep .mat-progress-bar-fill::after {
    background-color: #1E457C;
}

::ng-deep .mat-progress-bar-buffer {
    background: #E4E8EB;
}

::ng-deep .mat-progress-bar {
    border-radius: 2px;
}

HTML

<mat-progress-bar  mode="determinate" value="{{progress}}"></mat-progress-bar>

And the result is this:

EDIT:

I found a way to avoid using ::ng-deep as it will be removed from angular soon. It seems that if you move your style from your component.css file to the global styles.css file it will work without ::ng-deep.

So, a style defined above can change in

mat-progress-bar .mat-progress-bar-buffer {
  background: #E4E8EB;
}

Move it to styles.css and it will be applied like this:

LATER EDIT

As an explanation why setting styles in the global style sheet works:

For components the default is that angular adds a attribute to each DOM-element of a component, and then adds the same attribute to every class in the css for the same component. Adding styles to a global stylesheet does not add these attributes, hence the style will be applied. (thanks Jompis for this)

This worked for me on a new project. I did not checked specifically with the old code but the conditions are the same and there is no reason for it not to work.

Answer 2

Since nobody mentioned so far...

He's how I solved it.

@Meet Dave is right about his approach. But you should use encapsulation: ViewEncapsulation.None (disables css modules)

Something like this:

Component

@Component({
  selector: '...',
  templateUrl: '...',
  styleUrls: ['...'],
  encapsulation: ViewEncapsulation.None,
})

Sass (in my case)

.audio-progress-bar {
  &.mat-progress-bar {
    height: 10px;
  }

  .mat-progress-bar-fill::after {
    background-color: #37474f;
  }

  .mat-progress-bar-buffer {
    background-color: #90a4ae;
  }

  /* remove animation and the dots*/ 
  .mat-progress-bar-background {
    animation: none;
    background-color: #eceff1;
    fill: #eceff1;
  }
}

View

<mat-progress-bar
  class="audio-progress-bar"
  mode="buffer"
></mat-progress-bar>

Answer 3

Update:

Avoid using deep, TL;DR: Deep is technically invalid (like, deeprecated :p)

For more info refer: The use of /deep/ and >>> in Angular 2

Now, to change the color of mat-progress bar, Here is how I got it working,

Head over to your styles.scss file (or the main css/scss file in your project)

Add this class -->

.green-progress .mat-progress-bar-fill::after {
    background-color: green !important;
}

Your mat-progress should use the above class, like -->

<mat-progress-bar class="green-progress" mode="indeterminate"></mat-progress-bar>

Answer 4

Angular 8 solution:

for me it was putting my styling in a top level .scss file. Also had to select in .scss as follows:

html:

<mat-progress-bar [ngClass]="passwordStatusBarColor" 
                  aria-label="Password strength meter"
                  mode="determinate"
                  [value]="progress">
</mat-progress-bar>

<!--passwordStatusBarColor could be 'weak', 'weakest', etc. with a corresponding rule-->

styles.scss:

.weakest {
  .mat-progress-bar-fill::after {
    background-color: yellow;
  }
}