Getting started with Angular Floating action button component

20 Dec 20226 minutes to read

This section explains how to create a simple Floating Action Button and demonstrate the basic usage of the Floating Action Button component in an Angular environment.

Dependencies

The list of dependencies required to use the Floating Action Button component in your application is given as follows:

|-- @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 Buttons 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:"20.3.0.47-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 Floating Action Button module

Import Floating Action Button 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 Floating Action Button module from buttons package.
import { FabModule } from '@syncfusion/ej2-angular-buttons';
import { AppComponent } from './app.component';

@NgModule({
    imports: [BrowserModule, FabModule], // Registering EJ2 Floating Action Button Module.
    declarations: [AppComponent],
    bootstrap: [AppComponent]
})
export class AppModule { }

Adding Syncfusion Floating Action Button Component

Modify the template in app.component.ts file to render the Floating Action Button component.

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

@Component({
    selector: 'app-root',
    template: `<!-- To Render Floating Action Button -->
               <button ejs-fab id='fab'></button>`
})

export class AppComponent { }

Adding CSS reference

Add Floating Action Button 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 Floating Action Button component,

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

@Component({
    selector: 'app-root',
    template: `<div id="targetElement" style="position:relative;min-height:350px;border:1px solid;">
                </div>
                <!-- To Render Floating Action Button -->
                <button ejs-fab id='fab' content='Add' target='#targetElement'></button>`
})

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

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule,
        FabModule
    ],
    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);

Click event

The floating action button control triggers the onclick event when you click on the floating action button. You can use this event to perform the required action.

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

@Component({
    selector: 'app-root',
    template: `<div id="targetElement" style="position:relative;min-height:350px;border:1px solid;">
               </div>
               <!-- To Render Floating Action Button. -->
                <button ejs-fab id='fab' iconCss= 'e-icons e-edit' content= 'Edit' (click) ="onclick()" target= '#targetElement'></button>`
})

export class AppComponent {

    onclick() {
        alert("Edit is clicked!");
  };
 }
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { FabModule } from '@syncfusion/ej2-angular-buttons'

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule,
        FabModule
    ],
    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);