I have a question about Swiper and how to display a loading animation in a responsive environment.
It's Swiper Version: 3.4.2.
What I did
Hi, I have set the .swiper-container to
{ width: 100%; height: auto; }
because the site is responsive.
Otherwhise I use the standard swiper.min.css and swiper.min.js with these settings:
autoheight: true,
grabCursor: true,
slidesPerView: 1,
autoHeight: true,
keyboardControl: true,
paginationType: 'fraction',
pagination: '.swiper-pagination',
nextButton: '.swiper-button-next',
prevButton: '.swiper-button-prev',
Expected Behavior
I would like to have the container set to the height of the first image and have a loading animation displayed in the middle of the container until the images are loaded.
Actual Behavior
The swiper-container is only the height of the arrows. Then next thing you see is the cropped first image (the size of the container which is the size of the arrows), and only after that, the container is set to the size of the first image.
I would really appreciate some help.
Thanks
Stefan
Have you tried Lazy Loading?
The slideshow(/browser) will be unable to determine your slides height until the images have loaded, so you may have to manually determine the height of the image on the first slide and initialize the container with that.
See the Images Lazy Loading demo.
Related
I'm having an issue with owlcarousel. When I use large images with items:1 everything works well and each slide contains 1 image. But when I use smaller images the items:1 option is ignored and the images display 4 per slide.
owlcarousel is version 2.3.4 as are the corresponding CSS files.
$(document).ready(function(){
$(".news-post-gallery").owlCarousel({
navigation : false, // Show next and prev buttons
autoplay:false,
items: 1,
loop:false,
margin: 10,
center: true,
nav: true,
navText: [
"<div>Left</div>",
"<div>Right</div>"
],
responsive:{
0:{
items:1,
}
}
});
});
My first guess is that this is a CSS issue. Mind you even the small images are not that "small", the large images that I used were like half my screen width.
Edit: navText is being ignored as well when small images are used.
The issue was another carousel being initialized targeting the owl-carousel class. This ended up initializing the one I needed with the wrong settings. The carousels initializations were coming from different templates so the result was only visible in the source once the page was loaded.
Adding $(...).owlCarousel('destroy'); before i initialized mine solved the problem.
I'm using Cytoscape to generate a simple flow/state diagram and I'm able to generate the graph, but as the graph grows, it just keeps zooming out so the nodes become really small. Is there a way to have Cytoscape to just keep growing in height instead of shrinking the graph and having to zoom in? I would rather have the nodes stay a known size (i.e. 100px X 100px) and as the graph grows and have it grow vertically so the user just has to scroll down the page to see the rest of the graph. Right now, the viewport is restricted to the height of the page when the page is first rendered. Let me know if there is a way to achieve a vertically scrolling graph with fixed size nodes. Thanks!
Based on the suggestions of maxkfranz and gcpdev, I came up with the following solution that seems to work pretty well.
Cytoscope Init:
cy = cytoscape({
container: document.getElementById('cy'),
style: cytoscape.stylesheet()
.selector('node')
.css({
'shape': 'roundrectangle',
'height': 80,
'width': 150,
'background-fit': 'cover',
'background-color': '#F5F5F5',
'border-color': '#F5F5F5',
'border-width': 3,
'border-opacity': 0.5,
'text-valign': 'center',
'content': 'data(name)',
})
.selector('edge')
.css({
'width': 6,
'target-arrow-shape': 'triangle',
'line-color': '#0088cc',
'target-arrow-color': '#0088cc'
}),
elements: data,
zoomingEnabled: false,
layout: {
name: 'breadthfirst',
directed: true,
padding: 10
}
}); // cy init
After we have initialized the diagram, we have to set the size of our container div to be at least as high as the bounds of the graph. We also need to reset the size anytime someone resizes the window.
cy.on('ready', function () {
updateBounds();
});
//if they resize the window, resize the diagram
$(window).resize(function () {
updateBounds();
});
var updateBounds = function () {
var bounds = cy.elements().boundingBox();
$('#cyContainer').css('height', bounds.h + 300);
cy.center();
cy.resize();
//fix the Edgehandles
$('#cy').cytoscapeEdgehandles('resize');
};
I am also calling updateBounds() any time the user add a node to the graph. This gives me a graph that is full size and grows vertically. I can scroll down the page just fine as well!
(1) Layouts usually fit to the graph. Set layoutOptions.fit: false to override this default behaviour (at least for included layouts).
(2) The use of (1) means that running the layout will leave the graph viewport in the reset state (i.e. default zoom of 1 at origin position { x: 0, y: 0 }). If you want the viewport maintained at zoom: 1 but with an altered pan position, you can use cy.pan() with some simple calculations with cy.elements().boundingBox(). You may also find cy.center() useful -- though perhaps only horizontally in your case.
(3) The use of (2) means that your graph viewport (i.e. canvas) will be the same size, but the user will be able to pan down to see the remainder of the graph. If you prefer scrolling over panning, you will need to implement your own mechanism for this. You can make clever combination of cy.elements().boundingBox() and jQuery('#cy-div').css(), for example, to adjust the cy div to the size of the graph. You may want to turn off user panning and zooming (and autolock nodes etc.), if the graph is not interactive.
Well, I think you could set the zoom amount to fixed and disable zoom in/out, and use some strategy to dynamically change your div/page's height.
This answer or this one should help you.
Problem
I use the flexslider carousel to a number of images to show. What I want now is, when the browser has a certain width drop a break, which for example is incidental to 768px 2 images are shown. Currently you see an image at a certain width but half and wants to these points with javascript / jquery to give many pictures there must fully show.
So my question is, how I can make an if statement for when the browser width is for example 768px width, is must show two images...
$('.flexslider').flexslider({
animation: "slide",
animationLoop: true,
itemWidth: 320,
itemMargin: 0,
minItems: 2,
maxItems: 5,
start: function(slider){
$('body').removeClass('loading');
}
});
Check code on JSFiddle
You can use an if statement for widths like this:
if ($(window).width() < 960) {
alert('Less than 960');
}
else {
alert('More than 960');
}
... and to contain that, you might like to combine your document ready function with a window resize function.
$(document).ready(myfunction);
$(window).resize(myfunction);
function myfunction() {
// Pace the if/else here, do whatever
}
In terms of showing two images it think you should be able to be achieve that by setting slide widths and offsets in the flexslider function - or with css. here are the options i'm talking about:
itemWidth: 490, // or whatever is 1/2 of your width
itemMargin: 30, // experiment here!
minItems: 1, // or 2
Here's an edited version of your JS fiddle demo! http://jsfiddle.net/tM2a8/
-App uses Sencha touch 2.0 carousel
-Images in the carousel are displayed full screen (minus the navigation bar at the top of the screen)
-App is targetted for iPad2, iPad2 Retina display, Android xhdpi (tablets)
Goal: To display full screen images in the carousel in all target devices
Question: What should be the resolution of the image?
I have tried 1028x768 image in the carousel. Displays fine (full screen) on iPad2 retina but on Samsung galaxy Tab 10 I see vertical bars on the sides. I understand the resolution is lower than retina but I figured that it would automatically scale down to the resolution of the target device and display the image full screen but apparently it isnt doing so.
Has this been achieved, if so please share.
Appreciate it.
Thanks.
Got it!
The resolution of the image doesnt really matter! True.
What is important is making sure the image tag displays the complete image by automatically resizing the image.
Here is how:
-Define a DIV tag with a specfied height (window.innerHeight) and width (window.innerWidth).
-Place the img tag as a child element of the DIV tag with height=100% and width=100%
Irrespective of the resolution of the image, resolution of the device, screen size of the device the image will be always be automitcally resized and displayed in full size.
The complete code to make the carousel work is here:
Carousel code
{
xtype: 'panel'
layout: 'fit',
flex: Ext.os.is.Phone ? 5 : 6,
items: [
{
xtype: 'carousel',
direction: 'horizontal',
directionLock: true,
id: 'ImgId',
flex: Ext.os.is.Phone ? 5 : 6,
config: {
fullscreen: true
}
}
]
}
Carousel item code
Ext.each(images, function (picture) {
var img = picture.url;
var bigImg = picture.bigUrl;
itemsoverlay.push({
xtype: 'label',
html: '<div style="width:'
+ window.innerWidth
+ 'px;height:' + 'px;"><img src='
+ imgURL
+ ' style="width: 100%;height: 100%;" /></div>'
});
});
This code works for tablets and smartphones, iOS or Android.
HTH
I have a carousel with images but the images appear to the left of the screen, other than that it works perfectly. I have tried putting the images inside a div with the style:
margin:0 auto, width: 300px;
but that doesn't work. I've tried various other things, such as playing around with different classes:
.x-body x-carousel-item{
margin:0 auto; width: 264px;
}
But it never works quite right.
new Ext.Carousel({
items: [
],
height:200,
dockedItems: [myapp.toolbars.vehicleInfoToolbar],
indicator: false,
})
Items are added to the carousel dynamically, an example item is
new Ext.Panel({ html: imagearray })
Where imagearray is a standard tag.
Many thanks for any help on this, I've seen this problem on another forum without answer, hopefully someone here can shed some light on this one.
To set the padding inside the carousel's body use the bodyPadding property or wrap the image tag with div and set the text-align:center for that div.
What I did is specify a CSS class called "carouselImage", which sets "background-position: center;", and then I just specify via 'cls' attribute in the view config, or via setCls() method for the components to use that CSS class.