How to add a loading spinner to an Angular Material button (Step-by-step Guide)

The 2 minute complete guide to adding a loading spinner to the Angular Material Button

Err…

…wouldn't it be nice if Angular Material had a button with a loading spinner? Like the loading buttons that Semantic UI has.

Instead of ranting I decided to try to build my own solution  -  and succeeded!

With no further ado, I've included the code below.

Our spinner (CSS).

@keyframes spinner {
  to {transform: rotate(360deg);}
}

.spinner:before {
  content: '';
  box-sizing: border-box;
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin-top: -10px;
  margin-left: -10px;
  border-radius: 50%;
  border: 2px solid #ffffff;
  border-top-color: #000000;
  animation: spinner .8s linear infinite;
}

Our button (HTML).

<div style="text-align:center">
  <button mat-raised-button color="primary" [class.spinner]="loading" [disabled]="loading" (click)="save()">Save</button>
</div>

Our .ts file (the logic)

export class AppComponent{
  title = 'hello-world';
  loading = false;

  save(): void {
    this.loading = true;
  }
}

Done!

I told you this was simple. You're welcome. Hope you enjoyed it!

Questions or comments? Don't hesitate to contact me.