How can I implement a dynamic progress bar using Ionic 4?

I am currently working on developing a progress bar that increases by 1% every time the user clicks a button.

This is what my HTML code looks like:

<ion-button *ngFor="let progress of progress" (click)="add(progress)">Progress</ion-button>
<ion-progress-bar value={{progress}} buffer={{buffer}}></ion-progress-bar>

And here is the component file code:

add(progress){
    this.progress = progress + 1;
}

Despite not encountering any errors in Logcat, I am struggling to display the button. Can someone point out where I might be going wrong?

angulartypescriptionic-frameworkprogress-bar

Answer №1

Give it a shot!

let count = 1;
function increaseCount(){
  count = count + 1; 
}
<button onclick="increaseCount()">Increase Count</button>
<p>Current count: {{count}}</p>

Answer №2

Here is a method that you can use, and it is functioning properly

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

constructor(public _zone: NgZone) { }

const fileTransfer: FileTransferObject = this.transfer.create();

fileTransfer.onProgress((progressEvent) => {
   this._zone.run(() => {
      this.progress = (progressEvent.lengthComputable) ?  
      Math.floor(progressEvent.loaded / progressEvent.total * 100) : -1;
   });
 });



 <div class="progress-outer" >
    <progress id="progressbar" max="100" [value]="progress"> </progress>
 </div>

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