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Angular Material 7 - Button Toggle
  • 时间:2024-12-22

Angular Material 7 - Toggle Button


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The <mat-button-toggle>, an Angular Directive, is used to create a toggle or on/off button with material stypng 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 Apppcation

Follow the following steps to update the Angular apppcation 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 apppcation 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_apgn_left</mat-icon>
   </mat-button-toggle>
   <mat-button-toggle value = "center">
      <mat-icon>format_apgn_center</mat-icon>
   </mat-button-toggle>
   <mat-button-toggle value = "right">
      <mat-icon>format_apgn_right</mat-icon>
   </mat-button-toggle>
   <mat-button-toggle value = "justify" disabled>
      <mat-icon>format_apgn_justify</mat-icon>
   </mat-button-toggle>
</mat-button-toggle-group>
<span class = "tp-selected-value">Selected value: {{group.value}}</span>

Result

Verify the result.

Button Toggle

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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