Angular Material Spinner

material.module.ts (added a new module)

import { NgModule } from '@angular/core';
import { MatButtonModule } from '@angular/material';
import { MatProgressSpinnerModule} from '@angular/material/progress-spinner';
import { MatBadgeModule } from '@angular/material/badge';
import { MatButtonToggleModule} from '@angular/material/button-toggle';
import { MatIconModule} from '@angular/material/icon';


const MaterialComponent = [
  MatButtonModule,
  MatButtonToggleModule,
  MatIconModule,
  MatBadgeModule,
  MatProgressSpinnerModule
];

@NgModule({
  imports: [
    MaterialComponent,
  ],
  exports: [
    MaterialComponent
  ]
})
export class MaterialModule { }

app.module.ts

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';

import { AppComponent } from './app.component';
import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
import { MaterialModule } from './material/material.module';


@NgModule({
  declarations: [
    AppComponent
  ],
  imports: [
    BrowserModule,
    BrowserAnimationsModule,
    MaterialModule
  ],
  providers: [],
  bootstrap: [AppComponent]
})
export class AppModule { }

app.component.ts

import { Component } from '@angular/core';

@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})
export class AppComponent {
  title = 'GettingStarted';
  showSpinner = false;

  loadData(){
    this.showSpinner = true;
    setTimeout(()=> { this.showSpinner = false},5000);
  }
}

app.component.html

<div>
  <mat-spinner *ngIf="showSpinner"></mat-spinner>
</div>
<div><button mat-raised-button (click)="loadData()">Load Data</button></div>

<!-- value is the % of the progress bar shown -->
<mat-progress-spinner value="40"></mat-progress-spinner>
<mat-progress-spinner value="0"></mat-progress-spinner>
<mat-progress-spinner value="100"></mat-progress-spinner>
<div>
  <mat-spinner color="primary"></mat-spinner>
  <mat-spinner color="accent"></mat-spinner>
  <mat-spinner color="warn"></mat-spinner>
</div>

Output :