Setting Parameters in Ionic 7 Swiper 11 using Typescript

Question

Setting Parameters in Ionic 7 Swiper 11 using Typescript

Below are the codes that I have written. My goal is to use a script to configure the parameters of the swiper slider.

<swiper-container [options]="recentPostSliderOpts" class="discover-top-banner">
  <swiper-slide *ngFor="let toplatestpost of toplatestposts">
     <!-- Some Codes Here Cut Short -->
  </swiper-slide>
</swiper-container>

Here is my TypeScript code snippet.

import { Swiper, SwiperOptions } from 'swiper/types';

recentPostSliderOpts: SwiperOptions = {
  slidesPerView: 3,
}

The [options] attribute is not functioning as expected based on the Ionic Framework guide available at https://ionicframework.com/docs/angular/slides. It worked fine with Swiper 9 but seems to be causing issues with Swiper 11. I have referred to the official documentation on the SwiperJS website but could not find a solution. I also attempted using [config] without success.

If anyone has some insights or suggestions, I would greatly appreciate your help!

typescript ionic-framework swiper.js ionic7

Answer 1

Answer №1

To achieve this, you must:

1 - Start by creating a directive for the swiper and utilize a template variable to store the current swiper reference

<swiper-container appSwiper #swiperRef [config]="recentPostSliderOpts" class="discover-top-banner">
    <swiper-slide *ngFor="let toplatestpost of toplatestposts">
         <!-- Some Codes Here Cut Short -->
    </swiper-slide>
</swiper-container>

2 - In the typescript file, define the configuration you desire and store the swiper reference in a variable to monitor events.

swiper!: Swiper;
@ViewChild('swiperRef') swiperRef!: ElementRef<SwiperContainer>;

recentPostSliderOpts: SwiperOptions = {
  spaceBetween: 10,
  navigation: true,
  slidesPerView: 1.2,
}

ionViewDidEnter() {
  this.swiper = this.swiperRef?.nativeElement.swiper;

  this.swiper.on('slideChange', (swiper) => {
    console.log('slide changed:', swiper.realIndex);
  });
}

3 - Develop the directive

import { AfterViewInit, Directive, ElementRef, Input } from '@angular/core';
import { SwiperContainer } from 'swiper/element';
import { SwiperOptions } from 'swiper/types';

@Directive({
  selector: '[appSwiper]',
  standalone: true
})

export class SwiperDirective implements AfterViewInit {

  @Input() config?: SwiperOptions;

  constructor(private el: ElementRef<SwiperContainer>) { }

  ngAfterViewInit(): void {
    Object.assign(this.el.nativeElement, this.config);

    this.el.nativeElement.initialize();
  }

}

4 - Ensure to include the SwiperDirective in your module imports array

5 - Also add schemas: [CUSTOM_ELEMENTS_SCHEMA] in your module to prevent any build errors

6 - Invoke the register function at a single location in your project, preferably in the app.module.ts file

import { register } from 'swiper/element/bundle';
register();

Now, everything should be functioning smoothly. Best of luck! 😉

Answer 2

To achieve this, you must:

1 - Start by creating a directive for the swiper and utilize a template variable to store the current swiper reference

<swiper-container appSwiper #swiperRef [config]="recentPostSliderOpts" class="discover-top-banner">
    <swiper-slide *ngFor="let toplatestpost of toplatestposts">
         <!-- Some Codes Here Cut Short -->
    </swiper-slide>
</swiper-container>

2 - In the typescript file, define the configuration you desire and store the swiper reference in a variable to monitor events.

swiper!: Swiper;
@ViewChild('swiperRef') swiperRef!: ElementRef<SwiperContainer>;

recentPostSliderOpts: SwiperOptions = {
  spaceBetween: 10,
  navigation: true,
  slidesPerView: 1.2,
}

ionViewDidEnter() {
  this.swiper = this.swiperRef?.nativeElement.swiper;

  this.swiper.on('slideChange', (swiper) => {
    console.log('slide changed:', swiper.realIndex);
  });
}

3 - Develop the directive

import { AfterViewInit, Directive, ElementRef, Input } from '@angular/core';
import { SwiperContainer } from 'swiper/element';
import { SwiperOptions } from 'swiper/types';

@Directive({
  selector: '[appSwiper]',
  standalone: true
})

export class SwiperDirective implements AfterViewInit {

  @Input() config?: SwiperOptions;

  constructor(private el: ElementRef<SwiperContainer>) { }

  ngAfterViewInit(): void {
    Object.assign(this.el.nativeElement, this.config);

    this.el.nativeElement.initialize();
  }

}

4 - Ensure to include the SwiperDirective in your module imports array

5 - Also add schemas: [CUSTOM_ELEMENTS_SCHEMA] in your module to prevent any build errors

6 - Invoke the register function at a single location in your project, preferably in the app.module.ts file

import { register } from 'swiper/element/bundle';
register();

Now, everything should be functioning smoothly. Best of luck! 😉

Answer 3

Answer №2

While this answer provides a solution, it fails to include the crucial init="false" attribute on the swiper container. Failing to do so may lead to the error: "Cannot read properties of null (reading 'remove')". For more information on virtual slides, visit:

Answer 4

While this answer provides a solution, it fails to include the crucial init="false" attribute on the swiper container. Failing to do so may lead to the error: "Cannot read properties of null (reading 'remove')". For more information on virtual slides, visit:

Setting Parameters in Ionic 7 Swiper 11 using Typescript

Answer №1

Answer №2

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