Is it possible to adjust the opacity when the image attribute is altered?

I am trying to achieve a smooth transition when changing the image source on click using previous/next buttons. I want the image to fade out, then change source and fade back in, but I'm having trouble getting it to work seamlessly. I attempted to use .delay() between the fading animations and source change, but the source change is still happening before the fading completes. I also tried using .stop(), but that only stops the currently running animation and doesn't affect attribute changes.

var images = ['http://i.imgur.com/U82gG8H.jpg', 'http://i.imgur.com/kVy4G4R.jpg', 'http://i.imgur.com/BtMikrd.jpg'];

var count = 0;

$('.next').on('click', function() {
  if (count !== images.length-1) {
    count++;
    $('.product_image img').fadeTo(300, 0).delay(600).attr('src', '').attr('src', images[count]).fadeTo(300, 1);
  }
});

$('.previous').on('click', function() {
  if (count !== 0) {
    count--;
    $('.product_image img').fadeTo(300, 0).delay(400).attr('src', '').attr('src', images[count]).fadeTo(300, 1);
  }
});
.navigation {
  display: block;
}
.navigation .previous,
.navigation .next {
  width: 30px;
  height: 30px;
  line-height: 30px;
  text-align: center;
  background: #ddd;
  color: #fff;
  display: inline-block;
  margin-right: 20px;
  cursor: pointer;
}
.navigation .next {
  margin-right: 0;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
<div class="product_image">
  <img src="http://i.imgur.com/U82gG8H.jpg" />
</div>
<div class="navigation">
  <div class="previous">&lt;</div>
  <div class="next">&gt;</div>
</div>

Any assistance would be greatly appreciated.

javascriptjqueryhtmlcss

Answer №1

To ensure the images fade properly, utilize a callback function within the first fadeTo. Otherwise, the images may all fade out, change, and fade back in simultaneously. Give this code a try:

var pictures = ['http://i.imgur.com/U82gG8H.jpg', 'http://i.imgur.com/kVy4G4R.jpg', 'http://i.imgur.com/BtMikrd.jpg'];
var counter = 0;

$('.next').on('click', function() {
  if (counter !== pictures.length - 1) {
    counter++;
    $('.product_image img').fadeTo(300, 0, function() {
      $(this).attr('src', pictures[counter]).fadeTo(300, 1);
    });
  }
});
$('.previous').on('click', function() {
  if (counter !== 0) {
    counter--;
    $('.product_image img').fadeTo(300, 0, function() {
      $(this).attr('src', pictures[counter]).fadeTo(300, 1);
    });
  }
});
.navigation {
  display: block;
}
.navigation .previous,
.navigation .next {
  width: 30px;
  height: 30px;
  line-height: 30px;
  text-align: center;
  background: #ddd;
  color: #fff;
  display: inline-block;
  margin-right: 20px;
  cursor: pointer;
}
.navigation .next {
  margin-right: 0;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
<div class="product_image">
  <img src="http://i.imgur.com/U82gG8H.jpg" />
</div>
<div class="navigation">
  <div class="previous">&lt;</div>
  <div class="next">&gt;</div>
</div>

Answer №2

When using the .attr() function, keep in mind that it is not a queue based method, so any delay specified will not affect it. For adding methods to the animation queue, you can make use of .delay().

In addition, preloading images can significantly enhance transitions within your project.

var images = ['http://i.imgur.com/U82gG8H.jpg', 'http://i.imgur.com/kVy4G4R.jpg', 'http://i.imgur.com/BtMikrd.jpg'];

// Preloading images
images.forEach(function(src) {
  var img = new Image();
  img.src = src;
})

var count = 0;

$('.next').on('click', function() {
  count++;
  count = count >= images.length ? 0 : count;
  $('.product_image img').fadeTo(300, 0).delay(600).queue(function(next) {
    $(this).attr('src', images[count]);
    next();
  }).fadeTo(300, 1);
});

$('.previous').on('click', function() {
  count--;
  count = count < 0 ? images.length - 1 : count;

  $('.product_image img').fadeTo(300, 0).delay(400).queue(function(next) {
    $(this).attr('src', images[count]);
    next();
  }).fadeTo(300, 1);
});
.navigation {
  display: block;
}
.navigation .previous,
.navigation .next {
  width: 30px;
  height: 30px;
  line-height: 30px;
  text-align: center;
  background: #ddd;
  color: #fff;
  display: inline-block;
  margin-right: 20px;
  cursor: pointer;
}
.navigation .next {
  margin-right: 0;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
<div class="product_image">
  <img src="http://i.imgur.com/U82gG8H.jpg" />
</div>
<div class="navigation">
  <div class="previous">&lt;</div>
  <div class="next">&gt;</div>
</div>

Answer №3

Utilize a callback function for jQuery animations

The recommendation is to make use of the complete callback as detailed in the documentation available here.

This callback function is specified as a parameter and is included after the opacity value within the fadeTo method like so:

.fadeTo( duration, opacity [, complete ] )

Once the animation is finished, the callback function will be executed, allowing for modifications to the src attribute while the image appears "hidden", followed by a fade-in effect.

Example Implementation

var images = ['http://i.imgur.com/U82gG8H.jpg', 'http://i.imgur.com/kVy4G4R.jpg', 'http://i.imgur.com/BtMikrd.jpg'];

var count = 0,
    productImage = $('.product_image').children('img');

$('.next').on('click', function() {
  
  if (count !== images.length - 1) {
    
    count++;
    
    productImage.fadeTo(300, 0, function() {

      productImage.attr('src', images[count]).fadeTo(300, 1);

    });
  }
});

$('.previous').on('click', function() {
  
  if (count !== 0) {
    
    count--;
    
    productImage.fadeTo(300, 0, function() {

      productImage.attr('src', images[count]).fadeTo(300, 1);

    });
  }
});
.navigation {
  display: block;
}
.navigation .previous,
.navigation .next {
  width: 30px;
  height: 30px;
  line-height: 30px;
  text-align: center;
  background: #ddd;
  color: #fff;
  display: inline-block;
  margin-right: 20px;
  cursor: pointer;
}
.navigation .next {
  margin-right: 0;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
<div class="product_image">
  <img src="http://i.imgur.com/U82gG8H.jpg" />
</div>
<div class="navigation">
  <div class="previous">&lt;</div>
  <div class="next">&gt;</div>
</div>

Answer №4

Give this method a go

$(image).fadeTo(200,0.70, function() {
        $(image).attr("src", updated_img_src);
   }).fadeTo(300,1);

Answer №5

As mentioned in this response: the current animation that is currently in progress will be immediately finished, and then the next one will start. 

var pictures = ['http://i.imgur.com/U82gG8H.jpg', 'http://i.imgur.com/kVy4G4R.jpg', 'http://i.imgur.com/BtMikrd.jpg'];

var counter = 0;

$('.next').on('click', function() {
  if (counter !== pictures.length-1) {
    counter++;
    $('.product_image img').fadeTo(300, 0).delay(600).attr('src', '').attr('src', pictures[counter]).finish().fadeTo(300, 1);
  }
});

$('.previous').on('click', function() {
  if (counter !== 0) {
    counter--;
    $('.product_image img').fadeTo(300, 0).delay(400).attr('src', '').attr('src', pictures[counter]).finish().fadeTo(300, 1);
  }
});
.navigation {
  display: block;
}
.navigation .previous,
.navigation .next {
  width: 30px;
  height: 30px;
  line-height: 30px;
  text-align: center;
  background: #ddd;
  color: #fff;
  display: inline-block;
  margin-right: 20px;
  cursor: pointer;
}
.navigation .next {
  margin-right: 0;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
<div class="product_image">
  <img src="http://i.imgur.com/U82gG8H.jpg" />
</div>
<div class="navigation">
  <div class="previous">&lt;</div>
  <div class="next">&gt;</div>
</div>

Answer №6

Implementing the .fadeOut() method with a callback function upon completion can be done as shown below:

var images = ['http://i.imgur.com/U82gG8H.jpg', 'http://i.imgur.com/kVy4G4R.jpg', 'http://i.imgur.com/BtMikrd.jpg'];

var count = 0;

$('.next').on('click', function() {
  if (count !== images.length - 1) {
    count++;
    $('.product_image img').fadeOut(300, function() {
      $(this).attr('src', '').attr('src', images[count]).fadeTo(300, 1);
    });
  }
});

$('.previous').on('click', function() {
  if (count !== 0) {
    count--;
    $('.product_image img').fadeOut(300, function() {
      $(this).attr('src', '').attr('src', images[count]).fadeTo(300, 1);
    });
  }
});
.navigation {
  display: block;
}
.navigation .previous,
.navigation .next {
  width: 30px;
  height: 30px;
  line-height: 30px;
  text-align: center;
  background: #ddd;
  color: #fff;
  display: inline-block;
  margin-right: 20px;
  cursor: pointer;
}
.navigation .next {
  margin-right: 0;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
<div class="product_image">
  <img src="http://i.imgur.com/U82gG8H.jpg" />
</div>
<div class="navigation">
  <div class="previous">&lt;</div>
  <div class="next">&gt;</div>
</div>

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