Ng2-al-slim-bar NPM

a slim loading bar that works with Angular 7,8,9+

Angular component that shows slim loading bar at the top of the page of your application. a fork of ng2-slim-loading-bar

Installation

npm install ng2-al-slim-bar

or

yarn add ng2-al-slim-bar

Demo

https://angular-wytxgs.stackblitz.io

Usage

1. Update the markup

Import the style.css file into your web page
Add <ng2-slim-loading-bar></ng2-slim-loading-bar> tag in template of your application component.

2. Import the `SlimLoadingBarModule`

Import SlimLoadingBarModule.forRoot() in the NgModule of your application. The forRoot method is a convention for modules that provide a singleton service.

import { BrowserModule } from "@angular/platform-browser";
import { NgModule } from "@angular/core";
import { SlimLoadingBarModule } from "ng2-al-slim-bar";

@NgModule({
  imports: [BrowserModule, SlimLoadingBarModule.forRoot()],
  bootstrap: [AppComponent]
})
export class AppModule {}

@NgModule({
  imports: [BrowserModule, SlimLoadingBarModule.forRoot()],
  exports: [BrowserModule, SlimLoadingBarModule]
})
export class SharedModule {}

3. Use the `SlimLoadingBarService` for your application

Import SlimLoadingBarService from ng2-slim-loading-bar in your application code:

import {Component} from '@angular/core';
import {SlimLoadingBarService} from 'ng2-al-slim-bar';

@Component({
    selector: 'app',
    template: `
        <div>Hello world</div>
        <button (click)="startLoading()">Start Loading</button>
        <button (click)="stopLoading()">Stop Loading</button>
        <button (click)="completeLoading()">Complete Loading</button>
        <ng2-slim-loading-bar></ng2-slim-loading-bar>
    `
})
export class AppComponent {

    constructor(private slimLoadingBarService: SlimLoadingBarService) { }

    startLoading() {
        this.slimLoadingBarService.start(() => {
            console.log('Loading complete');
        });
    }

    stopLoading() {
        this.slimLoadingBarService.stop();
    }

    completeLoading() {
        this.slimLoadingBarService.complete();
    }
}

3. Customize the the `ng2-al-slim-bar` for your application

You can use the following properties to customize the ng2-slim-loading-bar component in your template:

color - The color of loading bar. Default is firebrick. It can be any CSS compatible value.
height - The height of loading bar. Default value is 2px.
show - The flag helps hide and show the loading bar. Default value is true.

Example: <ng2-slim-loading-bar color="blue" height="4px"></ng2-slim-loading-bar>

4. Manage the loading bar

You can use the following properties to customize the SlimLoadingBar via instance of SlimLoadingBarService:

color - The color of loading bar.
height - The height of loading bar.
visible - The flag helps hide and show the loading bar, false for hidden and true for visible.

You can use the following methods to control the SlimLoadingBar via instance of SlimLoadingBarService:

start - Start the loading progress. Use the callback function as an parameter to listed the complete event.
stop - Stop the loading progress. This method pause the current position of loading progress.
reset- Reset the position of loading progress to 0.
complete - Set the progress to 100% and hide the progress bar.

5. Events handling

You can hook up with our different types of events thrown.

SlimLoadingBarEventType.PROGRESS
SlimLoadingBarEventType.HEIGHT
SlimLoadingBarEventType.COLOR
SlimLoadingBarEventType.VISIBLE

you can subscribe to these events types by simplying doing this

 constructor(private _loadingBar: SlimLoadingBarService) {
    this._loadingBar.events.subscribe((item:SlimLoadingBarEvent) => console.log(item));
   }

where item returned is of SlimLoadingBarEvent {type: SlimLoadingBarEventType, value: any}