What is the process for initiating an Angular 2 Materialize component?

I'm new to using angular2 materialize and I've found that the CSS components work perfectly fine. However, I'm facing an issue when it comes to initializing components like 'select'. I'm unsure of how or where to do this initialization.

Below is a part of my form:

<div class="input-field col s12">
    <select>
        <option value="" disabled selected>Choose your option</option>
        <option value="1">Option 1</option>
        <option value="2">Option 2</option>
        <option value="3">Option 3</option>
    </select>
    <label>Materialize Select</label>
</div>

This is how my component is structured:

import {Component, ElementRef, Inject, OnInit} from '@angular/core';
import {MaterializeDirective} from "angular2-materialize";

declare var jQuery:any;

@Component({
    selector: 'bsi-signup',
    styleUrls: ['assets/styles/app.component.css'],
    templateUrl: 'assets/templates/signup.component.html',
    directives: [MaterializeDirective],
    providers: []
})

export class SignupComponent implements OnInit {
    elementRef: ElementRef;

    constructor(@Inject(ElementRef) elementRef: ElementRef) {
        this.elementRef = elementRef;
}

    ngOnInit() {
        jQuery(this.elementRef.nativeElement).find('select:not([multiple])').material_select();
    }
}

Answer №1

Remember to include the attribute materialize="material_select"

<select materialize="material_select">
    <option value="" disabled selected>Choose your option</option>
    <option value="1">Option 1</option>
    <option value="2">Option 2</option>
    <option value="3">Option 3</option>
</select>
<label>Materialize Select</label>

The MaterializeDirective attribute directive (materialize) allows you to apply any MaterializeCSS initialization call to the element. MaterializeCSS provides a list of supported functions such as collapsible, leanModal, tooltip, dropdown, tabs, material_select, sideNav, and more.

Source: https://www.npmjs.com/package/angular2-materialize

Answer №2

Hey everyone! Here's a solution that has worked for me:

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

declare var Materialize:any; //declaring the Materialize variable for use

@Component({
  //your code
})
export class MyComponentComponent implements OnInit {

  constructor( ) {
    //your code
  }

  ngOnInit() {
    // your code
  }

  ngAfterViewChecked(){ // Executes after Angular initializes the component's views and child views.
    Materialize.updateTextFields();// updates fields when the document and views are ready
                                   // especially useful if inputs are empty 
  }

  updateInformation(){
     // your code ...
     Materialize.updateTextFields(); // updates the fields without needing to add the "active" class
  }
}

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