I need a way to view images in the full screen on devices and be able to swipe between them. Currently I have an ion-slides component that allows swiping through pictures and a PhotoViewer native plugin to allow opening an individual picture in full screen, but I have found no way to swipe between images in the PhotoViewer or view the ion-slides in full screen.
There is an un-maintained plugin that does this but does not work with Ionic 4 (https://www.npmjs.com/package/ionic-gallery-modal).
Is there no simple way to do this? It seems like such a basic use case to me.
1 Like
For anyone interested, I was able to get my use case working by using the Photoswipe.js library. I’m disappointed that this usecase isn’t supported with ionic plugins.
Full screen image gallery / slider with Photoswipe.js:
npm install --save photoswipe
npm install --save @types/photoswipe
Add to component that you want to use photoswipe on:
import * as Photoswipe from 'photoswipe';
import * as PhotoSwipeUI_Default from "photoswipe/dist/photoswipe-ui-default";
...
var pswpElement = document.querySelectorAll('.pswp')[0];
// build items array
var items = [
{
src: 'https://placekitten.com/600/400',
w: 600,
h: 400
},
{
src: 'https://placekitten.com/1200/900',
w: 1200,
h: 900
}
];
// define options (if needed)
var options = {
// optionName: 'option value'
// for example:
index: 0 // start at first slide
};
// Initializes and opens PhotoSwipe
var gallery = new PhotoSwipe( pswpElement, PhotoSwipeUI_Default, items, options);
gallery.init();
Add to index.html before
<!-- Root element of PhotoSwipe. Must have class pswp. -->
<div class="pswp" tabindex="-1" role="dialog" aria-hidden="true">
<!-- Background of PhotoSwipe.
It's a separate element as animating opacity is faster than rgba(). -->
<div class="pswp__bg"></div>
<!-- Slides wrapper with overflow:hidden. -->
<div class="pswp__scroll-wrap">
<!-- Container that holds slides.
PhotoSwipe keeps only 3 of them in the DOM to save memory.
Don't modify these 3 pswp__item elements, data is added later on. -->
<div class="pswp__container">
<div class="pswp__item"></div>
<div class="pswp__item"></div>
<div class="pswp__item"></div>
</div>
<!-- Default (PhotoSwipeUI_Default) interface on top of sliding area. Can be changed. -->
<div class="pswp__ui pswp__ui--hidden">
<div class="pswp__top-bar">
<!-- Controls are self-explanatory. Order can be changed. -->
<div class="pswp__counter"></div>
<button class="pswp__button pswp__button--close" title="Close (Esc)"></button>
<button class="pswp__button pswp__button--share" title="Share"></button>
<button class="pswp__button pswp__button--fs" title="Toggle fullscreen"></button>
<button class="pswp__button pswp__button--zoom" title="Zoom in/out"></button>
<!-- Preloader demo https://codepen.io/dimsemenov/pen/yyBWoR -->
<!-- element will get class pswp__preloader--active when preloader is running -->
<div class="pswp__preloader">
<div class="pswp__preloader__icn">
<div class="pswp__preloader__cut">
<div class="pswp__preloader__donut"></div>
</div>
</div>
</div>
</div>
<div class="pswp__share-modal pswp__share-modal--hidden pswp__single-tap">
<div class="pswp__share-tooltip"></div>
</div>
<button class="pswp__button pswp__button--arrow--left" title="Previous (arrow left)">
</button>
<button class="pswp__button pswp__button--arrow--right" title="Next (arrow right)">
</button>
<div class="pswp__caption">
<div class="pswp__caption__center"></div>
</div>
</div>
</div>
</div>
2 Likes
Remember to add css to index.html too:
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/photoswipe/4.1.2/photoswipe.min.css" />
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/photoswipe/4.1.2/default-skin/default-skin.css" />
1 Like
This works perfectly fine. But I want to close gallery if user clicks Hardware back button(Android device).
How can i do that?
Thanks,
Nirav
This is what I use:
this.customBackActionSubscription = this.platform.backButton.subscribe(async (data) => {
try {
// If full-size image gallery is open, close it.
if (document.getElementsByClassName('pswp--open').length !== 0) {
document.getElementsByClassName('pswp--open')[0].classList.remove('pswp--open');
}
} catch (error) {
console.log(error.errorMessage);
}
return;
});
It’s working but it closes my app. I found below working code:
this.platform.registerBackButtonAction(() => {
try {
// If full-size image gallery is open, close it.
if (document.getElementsByClassName('pswp--open').length !== 0) {
document.getElementsByClassName('pswp--open')[0].classList.remove('pswp--open');
}
else
this.platform.exitApp();
} catch (error) {
console.log(error.errorMessage);
}
}, 0);
One more issue…
Using back button closes gallery as expected. But then if i open gallery again. Then everytime i click different image, it still shows last image.
If i manually click close button then things working fine.
Do you know how can i click close button programatically?
Finally below code is what i need:
platform.registerBackButtonAction(() => {
try {
// If full-size image gallery is open, close it.
if (document.getElementsByClassName('pswp--open').length !== 0 && document.getElementsByClassName('pswp__button--close').length !== 0) {
(document.getElementsByClassName('pswp__button--close')[0] as HTMLElement).click();
}
else
this.platform.exitApp();
} catch (error) {
console.log(error.errorMessage);
}
}, 0);
UPDATE:
If you want to use this please know that you MUST know the image’s height and width. After I setup everything I found out I can’t use it because I don’t know my image’s size…
From FAQ Getting Started | PhotoSwipe :
I’m unable to predefine image size, what to do?
Use another gallery script (1, 2), or find a way:
- You can read size of an image by downloading only small part of it (PHP version, Ruby, Node.js).
- You can store size of an image directly in its filename and parse it on frontend during PhotoSwipe initialization (
gettingData event in API section).
- Most CMS store size of an image in a database and have API to retrieve it.
- Most web API (Facebook, 500px, Instagram, Flickr, Twitter, YouTube, Vimeo etc.) return a size of images.
Thank you for sharing. I’m upgrading from Ionic 3 to Ionic 5 and surprise still no such plugin.
Here is the offical setup guide: Getting Started | PhotoSwipe
Here are some details:
- Changed the import name to something like “MyPhotoswipe”, if it’s the same name as in the plugin, it throws error:
" 'Photoswipe' refers to a UMD global, but the current file is a module."
- For import css, in Ionic 5 I add them to angular.json instead of add them to index.html:
{
"$schema": "./node_modules/@angular/cli/lib/config/schema.json",
"version": 1,
"defaultProject": "app",
"newProjectRoot": "projects",
"projects": {
"app": {
"root": "",
"sourceRoot": "src",
"projectType": "application",
"prefix": "app",
"schematics": {},
"architect": {
"build": {
"builder": "@angular-devkit/build-angular:browser",
"options": {
...
"assets": [
...
],
"styles": [
{
"input": "./node_modules/photoswipe/dist/photoswipe.css"
},
{
"input": "./node_modules/photoswipe/dist/default-skin/default-skin.css"
}
],
"scripts": []
},
"configurations": {
"production": {
"fileReplacements": [
....