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The <mat-button-toggle>, an Angular Directive, is used to create a toggle or on/off button with material styling and animations. mat-button-toggle buttons can be configured to behave as radio buttons or checkboxes. Typically they are part of <mat-button-toggle-group>.
In this chapter, we will showcase the configuration required to draw a button toggle 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 {MatButtonToggleModule, MatIconModule} from ''@angular/material''
import {FormsModule, ReactiveFormsModule} from ''@angular/forms'';
@NgModule({
declarations: [
AppComponent
],
imports: [
BrowserModule,
BrowserAnimationsModule,
MatButtonToggleModule, MatIconModule,
FormsModule,
ReactiveFormsModule
],
providers: [],
bootstrap: [AppComponent]
})
export class AppModule { }
Following is the content of the modified CSS file app.component.css.
.tp-selected-value {
margin: 15px 0;
}
Following is the content of the modified HTML host file app.component.html.
<mat-button-toggle-group #group = "matButtonToggleGroup">
<mat-button-toggle value = "left">
<mat-icon>format_align_left</mat-icon>
</mat-button-toggle>
<mat-button-toggle value = "center">
<mat-icon>format_align_center</mat-icon>
</mat-button-toggle>
<mat-button-toggle value = "right">
<mat-icon>format_align_right</mat-icon>
</mat-button-toggle>
<mat-button-toggle value = "justify" disabled>
<mat-icon>format_align_justify</mat-icon>
</mat-button-toggle>
</mat-button-toggle-group>
<div class = "tp-selected-value">Selected value: {{group.value}}</div>
Result
Verify the result.
Details
- As first, we”ve created a toggle button group using mat-button-toggle-group.
- Then, we”ve added toggle buttons to the group using mat-button-toggle.
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