Jquery Change Div Background-image With Fadein/out

October 07, 2024 Post a Comment

I'm trying to create a fadeIn/Out effect on a site I created (edit: site url deleted) Everything works great except when you click on one of the colors in the color palette, it rep

Solution 1:

This was the only reasonable thing I found to fade a background image.

<divid="foo"><!-- some content here --></div>

Your CSS; now enhanced with CSS3 transition.

#foo {
  background-image: url('a.jpg');
  transition: background 1s linear;
}

Now swap out the background

$("#foo").css("background-image", "url(b.jpg)");

Or do it with native javascript

document.querySelector("#foo").style.backgroundImage = "url(b.jpg)";

Voilà, it fades!

Obvious disclaimer: if your browser doesn't support the CSS3 transition property, this won't work.

Solution 2:

The solution that worked for me:

var image = $('#image-holder');
    image.fadeOut(1000, function () {
        image.css("background", "url('images/design-" + newColor + ".jpg')");
        image.fadeIn(1000);
    });

Solution 3:

var currentBackground = 0;

var backgrounds = [];

backgrounds[0] = 'images/BasePic1.jpg';

backgrounds[1] = 'images/BasePic2.jpg';

backgrounds[2] = 'images/BasePic3.jpg';

backgrounds[3] = 'images/BasePic4.jpg';

backgrounds[4] = 'images/BasePic5.jpg';

functionchangeBackground() {

    currentBackground++;

    if(currentBackground > 4) currentBackground = 0;

    $('#image-holder').fadeOut(1500,function() {
        $('#image-holder').css({
            'background-image' : "url('" + backgrounds[currentBackground] + "')"
        });
        $('#image-holder').fadeIn(1500);
    });


    setTimeout(changeBackground, 5000);
}

$(document).ready(function() {

    setTimeout(changeBackground, 5000);  

});

Solution 4:

Most solutions just fade in the element, rather than the background. This means that your information is hidden while the background is loading, which is more than often not what you want.

I have written the following solution, which works by taking your background image and adding it as an image to the element. It then fades in when it has loaded while all the time keeping your child elements visible.

It also adds a preloading gif which disappears when it loads. You may need to test with a larger image to see this in action.

Code and fiddle/snippet below.

jQuery(document).ready(function() {

  jQuery('.Loader').each(function(index, el) {

    var sBG = jQuery(this).css('background-image');
    sBG = sBG.replace('url(', '').replace(')', '').replace('"', '').replace('"', '');

    jQuery(this).prepend('<img src="' + sBG + '" id="tmp_' + jQuery(this).attr('id') + '" class="BGImage" />');
    jQuery(this).css('background-image', 'url("http://www.arabianbusiness.com/skins/ab.main/gfx/loading_spinner.gif")');

    jQuery(".BGImage:not(.processed)").each(function() {
      this.onload = function() {

        var oElement = jQuery('#' + jQuery(this).attr('id').replace('tmp_', ''));
        jQuery('#' + jQuery(oElement).attr('id')).css('background-image', 'none');
        oElement.removeClass('Loader');
        jQuery(this).fadeIn(3000);

      }
    });
  });

});

.Loader {

  background-position: center;

  background-repeat: no-repeat;

  transition: background 0.5s linear;

}

.BGImage {

  position: absolute;

  z-index: -1;

  display: none;

}

#Test {

  height: 300px;

  background-image: url(https://encrypted-tbn1.gstatic.com/images?q=tbn:ANd9GcTMa7lFP0VdTl63KgPAOotSies-YQ3qSslOuXWE6FnFxJ_EfF7tsA);

}

<scriptsrc="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script><divid="Test"class="Loader">Some text</div>

Solution 5:

Why not use jQuery to inject the markup that you need?

var $image_holder = $('#imageHolder'),
    $carousel_container = $('<div/>').attr('id', 'carousel_container'),
    images = ['first.jpg', 'second.jpg', 'third.jpg'];

for ( var i=0; i<images.length; i++ )
{
    $('<img/>').attr('src', images[i]).appendTo($carousel_container);
}

$carousel_container.insertAfter($image_holder);
$image_holder.hide();

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