Getting started with Angular Switch component

This section explains how to create a simple Switch, and demonstrate the basic usage of the Switch module in an Angular environment.

Dependencies

The following list of dependencies are required to use the Switch module in your application.

|-- @syncfusion/ej2-angular-buttons
   |-- @syncfusion/ej2-angular-base
   |-- @syncfusion/ej2-base
   |-- @syncfusion/ej2-buttons

Setup Angular environment

You can use Angular CLI to setup your Angular applications. To install Angular CLI use the following command.

npm install -g @angular/cli

Create an Angular application

Start a new Angular application using below Angular CLI command.

ng new my-app
cd my-app

Installing Syncfusion Switch package

Syncfusion packages are distributed in npm as @syncfusion scoped packages. You can get all the Angular Syncfusion package from npm link.

Currently, Syncfusion provides two types of package structures for Angular components,

1. Ivy library distribution package format
2. Angular compatibility compiler(Angular’s legacy compilation and rendering pipeline) package.

Ivy library distribution package

Syncfusion Angular packages(>=20.2.36) has been moved to the Ivy distribution to support the Angular Ivy rendering engine and the package are compatible with Angular version 12 and above. To download the package use the below command.

Add @syncfusion/ej2-angular-buttons package to the application.

npm install @syncfusion/ej2-angular-buttons --save

Angular compatibility compiled package(ngcc)

For Angular version below 12, you can use the legacy (ngcc) package of the Syncfusion Angular components. To download the ngcc package use the below.

Add @syncfusion/ej2-angular-buttons@ngcc package to the application.

npm install @syncfusion/ej2-angular-buttons@ngcc --save

To mention the ngcc package in the package.json file, add the suffix -ngcc with the package version as below.

@syncfusion/ej2-angular-buttons:"20.2.38-ngcc"

Note: If the ngcc tag is not specified while installing the package, the Ivy Library Package will be installed and this package will throw a warning.

Adding Switch module

Import Switch module into Angular application(app.module.ts) from the package @syncfusion/ej2-angular-buttons.

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

// Imported Syncfusion Switch module from buttons package.
import { SwitchModule } from '@syncfusion/ej2-angular-buttons';

import { AppComponent }  from './app.component';

@NgModule({
 imports:      [ BrowserModule, SwitchModule ], // Registering EJ2 Switch Module.
 declarations: [ AppComponent ],
 bootstrap:    [ AppComponent ]
})
export class AppModule { }

Adding Syncfusion Switch component

Modify the template in app.component.ts file to render the Switch component.

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

@Component({
 selector: 'app-root',
 template: `<!-- To Render Switch with checked state. -->
        <ejs-switch [checked]="true"></ejs-switch>`
})
export class AppComponent  { }

Adding CSS reference

Add Switch component’s styles as given below in style.css.

@import '../node_modules/@syncfusion/ej2-base/styles/material.css';
@import '../node_modules/@syncfusion/ej2-buttons/styles/material.css';

Running the application

Run the application in the browser using the following command:

ng serve

The below example shows a basic Switch component,

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

@Component({
selector: 'app-root',
template: `<!-- To Render Switch with checked state. -->
           <ejs-switch [checked]="true"></ejs-switch>`
})

export class AppComponent { }

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { SwitchModule } from '@syncfusion/ej2-angular-buttons';
import { AppComponent } from './app.component';
import { enableRipple } from '@syncfusion/ej2-base';

enableRipple(true);

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule,
        SwitchModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent]
})
export class AppModule { }

import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);

Set text on Switch

This section explains how to set onLabel and offLabel texts on Switch. In the following example, onLabel is set as ON and offLabel is set as OFF.

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

@Component({
selector: 'app-root',
template: `<!-- To Render Switch. -->
           <ejs-switch onLabel="ON" offLabel="OFF" [checked]="true"></ejs-switch>`
})

export class AppComponent { }

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { SwitchModule } from '@syncfusion/ej2-angular-buttons';
import { AppComponent } from './app.component';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule,
        SwitchModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent]
})
export class AppModule { }

import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);

Switch does not have text support for material themes, and does not support long custom text.