app.component.ts
import { Component } from '@angular/core';
@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})
export class AppComponent {
  isDisable:boolean = false;
  progress:number = 0;
  timer:any;
  maxValue:number = 100;
  onClick(){
    this.progress = 0;
    this.isDisable = true;
    this.timer = setInterval(() => this.updateProgress(), 100)
  }
  updateProgress(){
    this.progress++
    if(this.progress>=this.maxValue){
      clearInterval(this.timer);
      this.isDisable = false;
    }
  }
}
app.component.html
<h2 style="padding-top:25px; padding-bottom:25px;">
    Angular Material - How to use Progress bar
</h2>
<button 
    mat-raised-button 
    color="accent"
    (click)="onClick()" 
    [disabled]="isDisable" 
    style="margin-bottom:30px;">
        Run Task
</button>
<h3>Progress : {{progress}}</h3>
<mat-progress-bar 
    mode="determinate" 
    [value]="progress">
</mat-progress-bar>
app.module.ts [import]
import {MatProgressBarModule} from '@angular/material/progress-bar';
import {MatButtonModule} from '@angular/material/button'
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