Questions tagged [ionic3]

Ionic 3 emerged as a cutting-edge edition of Ionic, an open-source software development kit (SDK) empowering developers to create mobile applications utilizing familiar web technologies such as HTML, CSS, and JavaScript. By seamlessly integrating with Angular 4 and beyond, this version provided enhanced functionalities for over two years. However, the turning point came in 2019 when the advent of Ionic 4 propelled it into obscurity.

Why did the homepage load faster than the app.component.ts file?

I am facing an issue where the homepage is loading before app.component.ts, causing problems with certain providers not working properly due to import processes not being fully completed. Despite trying to lazy load the homepage, the console.log still sho ...

What is the syntax for adjusting background-position with ngStyle in Angular 4?

It's finally Friday! I'm a bit confused about how to properly set the background-position-x property in an [ngStyle] directive in Angular 4 with Ionic 3. Can someone guide me on the correct way to implement background-position-x? I expect the output to be ...

I'm building an angular website and considering using Ionic to develop the corresponding mobile apps. Can you recommend the simplest approach for this integration?

I have developed a responsive website using Angular 4 with Lumen serving as the Rest API. The website functions smoothly on both desktop and mobile browsers, but I now intend to venture into developing mobile applications. What would be the most straightf ...

Tips for refreshing the service page in Ionic 2

One of my services is called "user-data", and its main function is to fetch "user data" when a request is received. I have a specific page that is responsible for displaying this "user data". Upon loading the page, it retrieves the data and displays it. ...

Using string interpolation within the onclick event (Ionic 2 + Angular 2)

One question that's troubling me - I'm attempting to pass a string within an "onclick" event in my Ionic 2 app, but it keeps throwing an error. <button onclick="window.plugins.socialsharing.shareViaWhatsApp(null, null, '{{sound.file}}', null)">Send ...

I am encountering an Ionic issue where the Footer selector fails to work properly

I am working on my Ionic page and I have created a separate component for the footer. However, when I use the footer selector in my page, an error is displayed. This is the code for my "foot-card" component (foot-card.ts): import { Component } from '@ang ...

A guide on incorporating ng2-canvas-whiteboard into your Ionic 3 project

I'm trying to implement the npm package ng2-canvas-whiteboard into my Ionic 3 app. I followed all the instructions on the npm page and here is my package.json: "dependencies": { "@angular/common": "4.0.2", "@angular/compiler": "4.0.2", ...

Finding the index of a chosen option in Angular

Attempting to retrieve the index of the selected option from a select element using Angular. The Angular (4) and Ionic 3 frameworks are being utilized. The template structure is as follows: <ion-select [(ngModel)]="obj.city"> <ion-option ...

Generating a fresh object from an existing object by incorporating updated values using Angular and Ionic version 3

Currently, I am actively working on an Ionic 3 project that utilizes Angular framework. Within my project, I have a JSON object called 'person' which consists of data fields such as name, job, and home. One feature in my app is an Ionic toggle b ...

Ionic 3: Struggling to Access Promise Value Outside Function

I've encountered an issue where I am unable to retrieve the value of a promise outside of my function. It keeps returning undefined. Here's what I have attempted so far: Home.ts class Home{ dd:any; constructor(public dbHelpr:DbHelperProvider){ } get ...

How to integrate custom plugins like Appsee or UXCAM into your Ionic 2 application

Struggling to integrate either Appsee or UXcam into my project. I attempted to import the plugin like this, but it didn't work: // import { Appsee } from '@ionic-native/appsee'; I read somewhere that you need to declare the variable for Ty ...

Launch the Image-Infused Modal

I am completely new to the world of Ionic development. Currently, I am working on a simple Ionic application that comprises a list of users with their respective usernames and images stored in an array. Typescript: users = [ { "name": "First ...

Required Ionic form field alert

Currently, I am developing a new app using ionic 3 and I am facing an issue with making inputs mandatory in my ionic-alert controller. Despite going through the ionic-component documentation and api documentation, I couldn't find a solution on how to ach ...

The binding to 'videoId' cannot be established as it is not a recognized attribute of the 'youtube-player' component

Currently, I am working with Ionic 3 and Angular 5. In my application, I am integrating Youtube videos using ngx-youtube-player. However, I am encountering errors: Template parse errors: Can't bind to 'videoId' since it isn't a know ...

Dismiss the Popover in Ionic 2

After opening a popover that redirects me to another page and then returning to the root page (popToRoot), I reload the data/dom upon an event and dismiss the popup once the json data is received from the server. Everything works smoothly with a lengthy ti ...

Learn the steps to access various file formats including doc, ppt, xlsx, pdf, jpg, and png using the Ionic native file opener

I am currently working on a Hybrid app using Ionic. My goal is to be able to open various types of files (doc, ppt, xlsx, pdf, jpg, png) from the device's internal or external storage using the Ionic Native File Opener plugin. However, I have only bee ...

Enhance the readability of your Angular/Ionic applications with proper hyphenation

In my Ionic 3 app, I am using an ion-grid. Some words do not fit within the columns and are cut off, continuing on the next row without any hyphens added for proper grammar context. See image https://i.stack.imgur.com/3Q9FX.png. This layout appears quite ...

"Encountering a Challenge: Cannot Assign Array to ngFor Directive in Ionic App, Displaying

I have encountered an issue while fetching product categories using API. The problem lies in the fact that the categories are being retrieved as an object instead of an Array which is required for *ngFor to work in Ionic. Any assistance on how to define th ...

Error in IONIC 3: The code is unable to read the 'nativeElement' property due to an undefined value, resulting in a TypeError

I am currently learning about IONIC 3 and working on an app that utilizes the Google Maps API. However, when I try to launch my app, I encounter the following error message: inicio.html Error: Uncaught (in promise): TypeError: Cannot read property 'nativ ...

Do Not Activate the Android App with Deeplink in Ionic3

I'm currently using the ionic-plugin-deeplinks to enable deep linking within my app. Here are the steps I followed: $ ionic cordova plugin add ionic-plugin-deeplinks --variable URL_SCHEME=myapp --variable DEEPLINK_SCHEME=https --variable DEEPLINK_HOST=mya ...

Unable to link with 'NgModel' as it is not recognized as a valid property of 'ion-input'

I'm experiencing some difficulty with the following error message: Error: Uncaught (in promise): Error: Template parse errors: Can't bind to 'NgModel' since it isn't a known property of 'ion-input'. 1. If 'ion-input ...

Adjust the canvas size to fit its parent element ion-grid

I am currently working on an Ionic 3 component that displays a grid of images connected by a canvas overlay. I have utilized Ionic's ion-grid, but I am facing an issue with resizing the canvas. The problem is that I cannot determine the correct dimension ...

Sorting a list based on user-defined criteria in Ionic 3

Currently working on a project using Ionic and Firebase, I am faced with the task of comparing arrays produced by users with those stored in Firebase. This comparison is essential for filtering a list of products. The user can reorder a list containing 3 ...

Is there a way to prevent users from selecting certain days in ion-datetime?

After searching through the official documentation, I couldn't find a solution. I am in need of a function similar to the jQuery datepicker beforeshowday function. My goal is to disable all weekends (Saturday and Sunday) in upcoming dates so that users a ...

Error in Ionic Cordova Build prod: Module "." not found - Requires Typescript version >3

After updating my ionic project and all dependencies, I encountered an error when trying to build a --prod android apk: Uncaught Error: Cannot find module "." at vendor.js:1 at vendor.js:1 at Object.<anonymous> (vendor.js:1) at e (vendor.js:1) at Ob ...

Tips for managing server data and dynamically binding values in Ionic 3

I am struggling with handling data retrieved from the server. I have a provider that fetches the data through HTTP, and I want to ensure the data is loaded before the page loads. However, there is a delay in reflecting the data on the page. Can someone pro ...

Combine two Observable arrays into a single array and showcase their contents using ngFor within an Ionic 3 application

In my Ionic 3 project, I am fetching two arrays through API calls. My goal is to display the data from both arrays in the same line like this: [item1.1] [item2.1] [item1.2] [item2.2] [item1.3] [item2.3] Instead of displaying them like this: [item1.1] ...

Creating an Increment and Decrement Button for Products in Angular and Ionic 3

I have gone through various tutorials, but there is still some confusion. I am attempting to create an increment and decrement button, but so far I have not been successful. Within an ion-list, I have multiple h3 elements. Here is a snippet of my view: ...

Calculating the sum total in Ionic 3: A Step-by-Step Guide

Struggling to calculate the total amount across different cards where amounts are listed. The code attempted is not producing the desired output - for example, entering 10 and then 20 results in 1020 as the total. this.itemCount = this.bindlcdetails.lengt ...

The parent DIV has a height of 0px, yet the child element is still visible

As I explored options for creating a navbar drop down menu with an accordion effect, I stumbled upon this informative YouTube video. The tutorial demonstrated the use of a custom component and manipulation of the max-height property of the card-content ele ...

The ion-input border seems to be fluctuating as the keyboard appears on the screen

I'm currently working with Ionic 3 and experiencing an issue where the selected ion-input's border in the ion-content is shifting when the device keyboard appears on the screen. Here is a visual representation of the problem: https://i.stack.imgu ...

Are there any methods to incorporate Facebook and Google login into an Ionic progressive web app (PWA)?

After successfully developing an app in Ionic 3 for Android and iOS, I encountered a problem when adding the browser platform. The Facebook and Google login features were not functioning as expected. Despite the assurance from Ionic documentation that the ...

registering a back button action in Ionic2 for multiple pages

Currently, I am in the process of developing my Ionic2 app and have encountered a dilemma regarding the functionality of registerBackButtonAction. On one page, let's call it pageA, I have implemented this function and everything is functioning as expected ...

Encountering an error while attempting to generate a fresh Ionic 3 project. npm reports the following issue: "npm ERR! code ELIFECYCLE npm ERR! errno 1 npm ERR! [email protected] postinstall

Today has been a rough day as I attempt to start a new project in Ionic 3. The versions of software I am using are as follows: Ionic 3.9.2 npm 6.7.0 node v8.10.0 Operating on Ubuntu 18, each time I run the following command: sudo ionic start test blank ...

Access the Ionic2 App through the Slider option

Trying out Ionic 2 and facing an issue. Created a default side-menu app from CLI with a slider. Need to start the actual side-menu app from the last slide on button click or anchor link. My app.ts: @Component({ templateUrl: 'build/app.html' }) ...

The Interface in TypeScript will not function properly when used on a variable (Object) that has been declared with the value returned from a function

I am currently in the process of developing an application using Ionic v3. Strangely, I am encountering issues with my interface when trying to assign a variable value returned by a function. Here is an example that works without any problems: export int ...

Pause and anticipate the occurrence of AdMob's complimentary video reward event within a defined function in Ionic/Typescript

In my ionic app, I have a function that determines if the user has watched a reward video to access another function: let canUseThisFunction = await this.someService.canUseFunction(); if(canUseThisFunction){ console.log("can use"); } else { cons ...

Looking for guidance on integrating REST API consumption features into Ionic Framework 3.x?

It's been a long time since I last used the ionic framework. The version I worked with was 1, where every page created with Ionic Creator had its own controller for adding JavaScript code to consume my REST framework. Now that I've downloaded the latest v ...

Instead of showing the data in the variable "ionic", there is a display of "[object object]"

Here is the code snippet I'm working with: this.facebook.login(['email', 'public_profile']).then((response: FacebookLoginResponse) => { this.facebook.api('me?fields=id,name,email,first_name,picture.width(720).height( ...

Leveraging Multiple @Input Decorators in Ionic 3 and Angular 2

Within my Ionic 3 project, I have developed a custom component called my-component. Utilizing the angular @Input functionality, data can be passed to this component with ease. In this case, I have two inputs defined as: @Input('finder') myFinder: Finder; ...

Ways to conceal result data in case the results are not discovered

I am looking to hide the search results based on the found elements and upon clicking the "x" button, I want to hide the entire results. The back press key is also not responding in my case. Here is a demo: https://stackblitz.com/edit/ionic-1j9sbj?file=p ...

Solving CORS issues on an emulator with Ionic3 and Angular4

I'm currently testing my Ionic 3 app on a Genymotion emulator and running into an issue with HTTP requests due to CORS. Initially, I believed it was a server problem but after checking the same server with an Ionic 2 app, everything seemed fine. Surprising ...

Validate if the program is currently running as "ionic serve" before implementing a conditional statement

Is there a method to determine if the ionic serve CLI is currently active (indicating it's not running on a physical device) within the code and use it as a condition? My problem: I have a Cordova plugin that returns a response to Cordova. When using Rip ...

Having trouble launching simple ionic template: Issue with locating module 'fast-deep-equal'

Recently I started using Ionic and followed the steps to install the basic blank template as shown below. First, I installed Ionic and Cordova by running the command: npm install -g ionic Cordova. After that, I created my first Ionic project using the f ...

Steps for Loading HTML5 Video Element in Ionic 2

Struggling to showcase a list of videos from my server, here's the issue I'm encountering and the layout of the app. https://i.stack.imgur.com/HWVt3.png This is the code snippet in HTML: <ion-list> <button ion-item *ngFor="let v ...

Why do selected items in Ionic 3 ion-option not get deselected even after reloading or reinitializing the array

HTML File: <ion-item class="inputpsection" *ngIf="showDeptsec"> <ion-label floating class="fontsize12">Department</ion-label> <ion-select (ionChange)="showDepartmentChosen($event)" multiple="true" formControlName=" ...

Tips for obtaining the OneSignal playerID

When launching the app, I need to store the playerID once the user accepts notifications. This functionality is located within the initializeApp function in the app.component.ts file. While I am able to retrieve the playerID (verified through console.log) ...

Adding or modifying attributes on a component selector in real-time

@Component({ selector: 'ion-col', templateUrl: 'components-field.html' }) export class FieldComponent { @HostBinding('attr.layout') layout = '¯\_(ツ)_/¯'; element: any; constructor() { console.log('Hello ComponentsFieldC ...

Show various perspectives depending on the circumstances

I am looking for a solution to display a different component if my ngFor loop returns null. <ion-select interface="popover" [ngModel]="selectedKidId"> <ion-option *ngFor="let kid of kids" [value]="kid.id">{{kid.name}}</ion-option& ...

Failed to set the reference: The first argument includes an undefined property. This error occurred within the context of

My journey with Firebase began just 4 days ago, although I've been a bit inconsistent. My goal was to create a user in the database, and while the user was successfully created, I encountered an issue when trying to return to the profile picture page. As ...

Unable to load the default value for ion-select in TypeScript

I have reviewed this question, this question, and this question. However, none of them seem to provide a straightforward solution for what I am searching for. <ion-list> <ion-item> <ion-label>Select Book</ion-label> <i ...

"Upon invoking the services provider in Ionic 2, an unexpected undefined value was

I encountered an issue while setting a value in the constructor of my page's constructor class. I made a call to the provider to fetch data. Within the service call, I was able to retrieve the data successfully. However, when I tried to access my vari ...

Guide to Displaying Individual Observable Information in HTML with Ionic 3

When using Observable to retrieve a single object from Firebase, how can I display this data on an HTML page? I attempted to use {{(postObservable2|async)?.subject}}, but it does not render. Another approach involved AngularFireObject, yet it resulted in ...

A pronounced distinction exists between ionInput and ionChange functionality

Q. Can you explain the difference between (ionInput) and (ionChange) events in Ionic framework? When would it be more appropriate to use one over the other? I have experimented with both event handlers below and found that they produce the same expected r ...

"The ion-label in Ionic2 is cutting off some of the text and not displaying it

I'm currently facing an issue with ion-label inside ion-item. The description is not properly displaying and instead, it shows dot-dot.. ..I need the entire text to be visible. Is there any solution available? <ion-card *ngFor="let product of products" ...

Page access will be protected by authentication

Looking for advice from those experienced with Angular2/ Ionic on how to restrict access to pages only when authenticated. Although there are a few pages that don't require authentication, the majority need it. Is there a way to automatically push the logi ...

Can variables be utilized with the toastController in Ionic or Angular framework?

Is it possible to present a toast message to the user with their first name that is stored in a variable? If so, how can I achieve this? I would like to create something similar to the following: this.toastCtrl.create({ message: "Welcome user.firstname ...

Issue: The component factory for GoogleCardLayout2 cannot be located

Recently I've been working on an Ionic 3 with Angular 6 template app where I encountered an issue while trying to redirect the user to another page upon click. The error message that keeps popping up is: Uncaught (in promise): Error: No component factory ...

Leveraging a traditional npm package within an Angular or Ionic project

I am interested in how to access a .plist file within an Angular / Ionic application. After discovering the npm module at this link: https://www.npmjs.com/package/plist I have successfully added it to my project, but I am now considering the most effecti ...

Issue: Unable to retrieve platform cordova-android version ^6.2.3

Experiencing a particular issue: allart@allart-vm-lubuntu:~/Documents/apps/MyApp/myapp$ ionic cordova platform add android > cordova platform add android --save Using cordova-fetch for cordova-android@^6.2.3 Error: Failed to fetch platform cordova-an ...

Securing Credit Card Numbers with Masked Input in Ionic 3

After testing out 3-4 npm modules, I encountered issues with each one when trying to mask my ion-input for Credit Card numbers into groups of 4. Every module had its own errors that prevented me from achieving the desired masking result. I am looking for ...

Error: The JSON.parse method encountered an unexpected token 'h' at the beginning of the JSON string while trying to parse it

Here is the code snippet I wrote using Ionic framework: dialogflow(question) { let headers = new Headers(); headers.append('Content-Type','application/json'); return this.http.post('http://localhost:3000/api/dialogflow',question,{headers: head ...

How can I utilize a filter or pipe to populate product categories onto screens within Ionic 2?

I am considering creating an Ionic 2 app with 6 pages, but I'm unsure whether to utilize a Pipe or a Filter for the individual category pages and how to implement the necessary code. Each category page should be able to display products from the "applecat ...

Encountering issues with utilizing global variables in Ionic 3

Using Ionic 3, I created a class for global variables but encountered an error Uncaught (in promise): Error: No provider for Globals! Error: No provider for Globals! at injectionError (http://localhost:8100/build/vendor.js:1590:86) at noProviderError Th ...

Is there a way to update the text of a button when it is clicked?

Is there a way to dynamically change the text of a button when it is clicked and revert back to its original text when clicked again? I have attempted something along these lines, but I am unsure how to target the text since there isn't a property similar ...

How to troubleshoot an Ionic exception occurring during the execution of any Ionic command?

Whenever I attempt to run an ionic command, I keep encountering this error message: { Error at FatalException.Exception (C:\Users\crist\AppData\Roaming\npm\node_modules\ionic\node_modules\@ionic\cli-u ...

Web application is not making API calls

Currently, I am experimenting with calling data from an API to create a simple weather application for practice purposes. I have been using the inspect element feature in my Chrome browser to check if the console will show the data log, but unfortunately, ...

Having difficulties viewing the sidemenu icon on Ionic 3, despite enabling the menu through MenuController

I am trying to show the sidemenu icon on my Home page, which users can access from the Add-Contract page. Even though I have enabled the sidemenu in home.ts using this.menu.enable(true);, the icon is not visible. However, I can still swipe and access the ...

"TypeScript function returning a boolean value upon completion of a resolved promise

When working on a promise that returns a boolean in TypeScript, I encountered an error message that says: A 'get' accessor must return a value. The code snippet causing the issue is as follows: get tokenValid(): boolean { // Check if curre ...

How can I conceal an element upon page load using Ionic framework?

index.component.ts initialize() { // Execute necessary functions after loading this.index.ready().then(() => { if(this.index.is('core')){ // this.menu.enable(false, 'mobileOnlyPages'); }else{ this.logoSc ...

The File plugin in Ionic 3 is encountering difficulties in writing files on the device

I am developing an app using Ionic 3 and the file plugin. My goal is to write a JSON string to a JSON file located in my assets folder with the following hierarchy: assets -> mock -> msg-list.json , with "assets" as the main folder in the Ionic files. Wh ...

How to Validate Ionic 2 Radio Button Selections with TypeScript

Imagine having a list like the one shown below: <ion-list radio-group [(ngModel)]="autoManufacturers"> <ion-list-header> Auto Manufacturers </ion-list-header> <ion-item> <ion-label>Cord</ion-label> &l ...

Showing records from Firebase that are still within the date range

I'm currently developing an application that allows users to book appointments on specific dates. After booking, I want the user to only be able to view appointments that are scheduled for future dates. I've attempted to compare the date of each appointme ...

Cache service for Ionic npm

While attempting to integrate the Ionic cache service into my Ionic3 project, I followed this tutorial on using Ionic Cache from npm. However, upon running ionic serve, an error was thrown as shown below: TypeError: Object(...) is not a function at CacheS ...

Tabs on Ionic Page

I have a mobile app built with Ionic 3 and Angular that I am currently in the process of upgrading to Ionic 6. The app does not use tabs throughout, but certain pages within the app have tab functionalities. Here is a simplified example: foo.html: <io ...