Issues with Ionic 3 Directive Not Functioning

Question

Issues with Ionic 3 Directive Not Functioning

Struggling to create a custom directive in Ionic that won't resize automatically? I can't figure out what's going wrong.

Here's the code snippet from my project, which is an Ionic 3 app with Angular 4:

import { Directive, HostListener, ElementRef } from '@angular/core';

@Directive({
  selector: '[auto-resize-text-input]' // Attribute selector
})
export class AutoResizeTextInput {
  constructor(public elem: ElementRef) {
    console.log('Hello AutoResizeTextInput Directive');
  }

  @HostListener('input', ['$event.target']) onInput() {
    this.resizeTextOnInput();
  }

  private resizeTextOnInput() {
    this.elem.nativeElement.style.overflow = 'hidden';
    this.elem.nativeElement.style.height = 'auto';
    this.elem.nativeElement.style.height = this.elem.nativeElement.scrollHeight + "px";
  }
}

In need of assistance. Can someone please help me figure this out?

angular typescript ionic2

Answer 1

Answer №1

Encountering a similar issue, I found that the directive was not being acknowledged by the application without generating any error messages. To resolve this, I relocated the directive from the main module's declarations to the page module's declarations, where the directive is actually utilized. This adjustment successfully eliminated the problem for me.

Answer 2

Encountering a similar issue, I found that the directive was not being acknowledged by the application without generating any error messages. To resolve this, I relocated the directive from the main module's declarations to the page module's declarations, where the directive is actually utilized. This adjustment successfully eliminated the problem for me.

Answer 3

Answer №2

If you found yourself in a situation like mine where you needed to implement this Directive across various components, here’s how I tackled it.

To start, create a shared DirectiveModule named directives.module.ts within the same directory as your app.module.ts file. Make sure to include the Directive you wish to use under both declarations:[] and exports:[]:

import { NgModule } from '@angular/core';
import { SomeDirective } from './some.directive';

@NgModule({
  declarations: [SomeDirective],
  exports: [SomeDirective]
})
export class DirectivesModule {}

Next, import the shared directive module into any modules where you require its functionality:

import { NgModule } from '@angular/core';
import { IonicPageModule } from 'ionic-angular';
import { SomePage } from './some';
import { DirectivesModule } from '../../app/directives.module';

@NgModule({
  declarations: [
    DashboardPage
  ],
  imports: [
    IonicPageModule.forChild(SomePage),
    DirectivesModule
  ]
})
export class SomePageModule {}

I searched everywhere but couldn’t find the solution I needed – hopefully, this guide proves helpful to someone else in need.

Answer 4

If you found yourself in a situation like mine where you needed to implement this Directive across various components, here’s how I tackled it.

To start, create a shared DirectiveModule named directives.module.ts within the same directory as your app.module.ts file. Make sure to include the Directive you wish to use under both declarations:[] and exports:[]:

import { NgModule } from '@angular/core';
import { SomeDirective } from './some.directive';

@NgModule({
  declarations: [SomeDirective],
  exports: [SomeDirective]
})
export class DirectivesModule {}

Next, import the shared directive module into any modules where you require its functionality:

import { NgModule } from '@angular/core';
import { IonicPageModule } from 'ionic-angular';
import { SomePage } from './some';
import { DirectivesModule } from '../../app/directives.module';

@NgModule({
  declarations: [
    DashboardPage
  ],
  imports: [
    IonicPageModule.forChild(SomePage),
    DirectivesModule
  ]
})
export class SomePageModule {}

I searched everywhere but couldn’t find the solution I needed – hopefully, this guide proves helpful to someone else in need.

Answer 5

Answer №3

When relocating your directive file to the components folder, follow these steps:

1. Simply move your file from components/your-directive to directives/your-directive 2. After moving the file, remember to rebuild it. Best of luck!

Answer 6

When relocating your directive file to the components folder, follow these steps:

1. Simply move your file from components/your-directive to directives/your-directive 2. After moving the file, remember to rebuild it. Best of luck!

Answer 7

Answer №4

Perhaps this advice could be beneficial:

Incorporate directives.module.ts into both the app.module.ts and components.module.ts if you are implementing directives within a component. Alternatively, you can simply import it directly into the app.module.ts to utilize your directive on a page.

Answer 8

Perhaps this advice could be beneficial:

Incorporate directives.module.ts into both the app.module.ts and components.module.ts if you are implementing directives within a component. Alternatively, you can simply import it directly into the app.module.ts to utilize your directive on a page.

Issues with Ionic 3 Directive Not Functioning

Answer №1

Answer №2

Answer №3

Answer №4

Similar questions

Is there a specific instance where it would be more appropriate to utilize the styled API for styling as opposed to the sx prop in Material-

How can nested json be sorted effectively based on two specific fields?

Angular - ngbDropdownMenu items are hidden from view, but their presence is still detectable

What is the best way to assign an HTML string to the DOM and connect it with an object?

What is causing the issue with using transition(myComponent) in this React 18 application?

Angular and Bootstrap are like peanut butter and jelly -

Is it possible to create my TypeORM entities in TypeScript even though my application is written in JavaScript?

Identifying data types of objects through generic value recognition

Can you explain the significance of using an exclamation mark after defining a variable in TypeScript?

The impact of redefining TypeScript constructor parameter properties when inheriting classes

Angular MDBootstrap formatting disappears upon refresh of the page

Inquiring about the application of spread argument in TypeScript

Example TypeScript code: Use the following function in Angular 5 to calculate the total by summing up the subtotals. This function multiplies the price by the quantity

Using TypeScript to Verify the Existence of Words in a String

The dispatch function of useReducer does not get triggered within a callback function

When I try to reverse the words in a string, I am not receiving the desired order

Unveiling the magic behind using jasmine to spy on a generic

Tips on utilizing the `arguments` property in scenarios where Parameters<...> or a similar approach is anticipated

Comparison between Destructuring in TypeScript and JavaScript

Unlocking the ability to retrieve data generated by the context within getServerSideProps beyond its boundaries (for transitioning from Create React App to Next.js)