Angular Material 7 - Badge

The <mat-badge>, an Angular Directive, is used to create a badges which is a small status descriptor for UI elements. A badge typically carries a number or other short set of characters, that appears in proximity to another UI element.

In this chapter, we will showcase the configuration required to draw a badge control using Angular Material.

Create Angular Application

Follow the following steps to update the Angular application we created in Angular 6 - Project Setup chapter −

Step	Description
1	Create a project with a name materialApp as explained in the Angular 6 - Project Setup chapter.
2	Modify app.module.ts, app.component.ts, app.component.css and app.component.html as explained below. Keep rest of the files unchanged.
3	Compile and run the application to verify the result of the implemented logic.

Following is the content of the modified module descriptor 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 {MatBadgeModule, MatButtonModule, MatIconModule} from '@angular/material'
import {FormsModule, ReactiveFormsModule} from '@angular/forms';
@NgModule({
   declarations: [
      AppComponent
   ],
   imports: [
      BrowserModule,
      BrowserAnimationsModule,
      MatBadgeModule, MatButtonModule, MatIconModule,
      FormsModule,
      ReactiveFormsModule
   ],
   providers: [],
   bootstrap: [AppComponent]
})
export class AppModule { }

Following is the content of the modified HTML host file app.component.html.

<p><span matBadge = "4" matBadgeOverlap = "false">Mail</span></p>
<p>
   <button mat-raised-button color = "primary"
      matBadge = "8" matBadgePosition = "before" matBadgeColor = "accent">
      Action
   </button>
</p>
<p><mat-icon matBadge = "15" matBadgeColor = "warn">home</mat-icon></p>

Result

Verify the result.

Details

As first, we've created a span, a button and a icon.
Then, we've added badges to each element using mat-badge attribute.

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