javascript – 可以跳进滑块吗？

2023年2月12日 201次阅读

是否可以获得特定幻灯片的链接？只要我在示例中选择链接,滑块就不再起作用了.仅显示没有功能的列表项.选择链接时,滑块应滚动到相应的幻灯片.这有可能吗？任何帮助将不胜感激.谢谢.

jQuery(document).ready(function($) {

  $('#checkbox').change(function() {
    setInterval(function() {
      moveRight();
    }, 3000);
  });

  var slideCount = $('#slider ul li').length;
  var slideWidth = $('#slider ul li').width();
  var slideHeight = $('#slider ul li').height();
  var sliderUlWidth = slideCount * slideWidth;

  $('#slider').css({
    width: slideWidth,
    height: slideHeight
  });

  $('#slider ul').css({
    width: sliderUlWidth,
    marginLeft: -slideWidth
  });

  $('#slider ul li:last-child').prependTo('#slider ul');

  function moveLeft() {
    $('#slider ul').animate({
      left: +slideWidth
    }, 200, function() {
      $('#slider ul li:last-child').prependTo('#slider ul');
      $('#slider ul').css('left', '');
    });
  };

  function moveRight() {
    $('#slider ul').animate({
      left: -slideWidth
    }, 200, function() {
      $('#slider ul li:first-child').appendTo('#slider ul');
      $('#slider ul').css('left', '');
    });
  };

  $('a.control_prev').click(function() {
    moveLeft();
  });

  $('a.control_next').click(function() {
    moveRight();
  });

});
#slider {
  position: relative;
  overflow: hidden;
  margin: 20px auto 0 auto;
  border-radius: 4px;
}
#slider ul {
  position: relative;
  margin: 0;
  padding: 0;
  height: 200px;
  list-style: none;
}
#slider ul li {
  position: relative;
  display: block;
  float: left;
  margin: 0;
  padding: 0;
  width: 500px;
  height: 300px;
  background: #ccc;
  text-align: center;
  line-height: 300px;
}
a.control_prev,
a.control_next {
  position: absolute;
  top: 40%;
  z-index: 999;
  display: block;
  padding: 4% 3%;
  width: auto;
  height: auto;
  background: #2a2a2a;
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  font-size: 18px;
  opacity: 0.8;
  cursor: pointer;
}
a.control_prev:hover,
a.control_next:hover {
  opacity: 1;
  -webkit-transition: all 0.2s ease;
}
a.control_prev {
  border-radius: 0 2px 2px 0;
}
a.control_next {
  right: 0;
  border-radius: 2px 0 0 2px;
}
.slider_option {
  position: relative;
  margin: 10px auto;
  width: 160px;
  font-size: 18px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<a href="#one">SLIDE 1</a>
<br>
<a href="#two">SLIDE 2</a>
<br>
<a href="#three">SLIDE 3</a>
<br>
<a href="#four">SLIDE 4</a>
<br>
<div id="slider">
  <a href="#" class="control_next">
    <p>&gt;</p>
  </a>
  <a href="#" class="control_prev">
    <p>&lt;</p>
  </a>
  <ul>
    <li id="one">SLIDE 1</li>
    <li style="background: #aaa;" id="two">SLIDE 2</li>
    <li id="three">SLIDE 3</li>
    <li style="background: #aaa;" id="four">SLIDE 4</li>
  </ul>
</div>

最佳答案 你必须在这里做更多的工作 – 所以这就是我所做的：

I.首先,我创建了一个具有回调功能的slideRight函数：

function slideRight(callback) {
    $('#slider ul').animate({
      left: -slideWidth
    }, 200, function() {
      $('#slider ul li:first-child').appendTo('#slider ul');
      $('#slider ul').css('left', '');
      callback();
    });
}

II.修改了链接到属性data-peek的链接,链接到相应的幻灯片,如下所示：

<a href="#" class="peek" data-peek="one">SLIDE 1</a>

III.现在,以下脚本将发挥作用：

$('a.peek').click(function() {
    slide($('#slider ul'), $(this).attr('data-peek'));
  });

  function slide(el, peek) {
    if (el.find('li:nth-child(2)').attr('id') !== peek) {
      slideRight(function() {
        slide(el, peek);
      });
    }
  }

见下面的演示：

jQuery(document).ready(function($) {

  $('#checkbox').change(function() {
    setInterval(function() {
      moveRight();
    }, 3000);
  });

  var slideCount = $('#slider ul li').length;
  var slideWidth = $('#slider ul li').width();
  var slideHeight = $('#slider ul li').height();
  var sliderUlWidth = slideCount * slideWidth;

  $('#slider').css({
    width: slideWidth,
    height: slideHeight
  });

  $('#slider ul').css({
    width: sliderUlWidth,
    marginLeft: -slideWidth
  });

  $('#slider ul li:last-child').prependTo('#slider ul');

  function moveLeft() {
    $('#slider ul').animate({
      left: +slideWidth
    }, 200, function() {
      $('#slider ul li:last-child').prependTo('#slider ul');
      $('#slider ul').css('left', '');
    });
  };


  function moveRight() {
    $('#slider ul').animate({
      left: -slideWidth
    }, 200, function() {
      $('#slider ul li:first-child').appendTo('#slider ul');
      $('#slider ul').css('left', '');
    });
  };

  function slideRight(callback) {
    $('#slider ul').animate({
      left: -slideWidth
    }, 200, function() {
      $('#slider ul li:first-child').appendTo('#slider ul');
      $('#slider ul').css('left', '');
      callback();
    });
  }

  $('a.control_prev').click(function() {
    moveLeft();
  });

  $('a.control_next').click(function() {
    moveRight();
  });

  $('a.peek').click(function() {
    slide($('#slider ul'), $(this).attr('data-peek'));
  });

  function slide(el, peek) {
    if (el.find('li:nth-child(2)').attr('id') !== peek) {
      slideRight(function() {
        slide(el, peek);
      });
    }
  }

});
#slider {
  position: relative;
  overflow: hidden;
  margin: 20px auto 0 auto;
  border-radius: 4px;
}
#slider ul {
  position: relative;
  margin: 0;
  padding: 0;
  height: 200px;
  list-style: none;
}
#slider ul li {
  position: relative;
  display: block;
  float: left;
  margin: 0;
  padding: 0;
  width: 500px;
  height: 300px;
  background: #ccc;
  text-align: center;
  line-height: 300px;
}
a.control_prev,
a.control_next {
  position: absolute;
  top: 40%;
  z-index: 999;
  display: block;
  padding: 4% 3%;
  width: auto;
  height: auto;
  background: #2a2a2a;
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  font-size: 18px;
  opacity: 0.8;
  cursor: pointer;
}
a.control_prev:hover,
a.control_next:hover {
  opacity: 1;
  -webkit-transition: all 0.2s ease;
}
a.control_prev {
  border-radius: 0 2px 2px 0;
}
a.control_next {
  right: 0;
  border-radius: 2px 0 0 2px;
}
.slider_option {
  position: relative;
  margin: 10px auto;
  width: 160px;
  font-size: 18px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<a href="#" class="peek" data-peek="one">SLIDE 1</a>
<br>
<a href="#" class="peek" data-peek="two">SLIDE 2</a>
<br>
<a href="#" class="peek" data-peek="three">SLIDE 3</a>
<br>
<a href="#" class="peek" data-peek="four">SLIDE 4</a>
<br>
<div id="slider">
  <a href="#" class="control_next">
    <p>&gt;</p>
  </a>
  <a href="#" class="control_prev">
    <p>&lt;</p>
  </a>
  <ul>
    <li id="one">SLIDE 1</li>
    <li style="background: #aaa;" id="two">SLIDE 2</li>
    <li id="three">SLIDE 3</li>
    <li style="background: #aaa;" id="four">SLIDE 4</li>
  </ul>
</div>

编辑：

这是一个不使用自定义属性的解决方案 – 使用id代替：

jQuery(document).ready(function($) {

  $('#checkbox').change(function() {
    setInterval(function() {
      moveRight();
    }, 3000);
  });

  var slideCount = $('#slider ul li').length;
  var slideWidth = $('#slider ul li').width();
  var slideHeight = $('#slider ul li').height();
  var sliderUlWidth = slideCount * slideWidth;

  $('#slider').css({
    width: slideWidth,
    height: slideHeight
  });

  $('#slider ul').css({
    width: sliderUlWidth,
    marginLeft: -slideWidth
  });

  $('#slider ul li:last-child').prependTo('#slider ul');

  function moveLeft() {
    $('#slider ul').animate({
      left: +slideWidth
    }, 200, function() {
      $('#slider ul li:last-child').prependTo('#slider ul');
      $('#slider ul').css('left', '');
    });
  };


  function moveRight() {
    $('#slider ul').animate({
      left: -slideWidth
    }, 200, function() {
      $('#slider ul li:first-child').appendTo('#slider ul');
      $('#slider ul').css('left', '');
    });
  };

  function slideRight(callback) {
    $('#slider ul').animate({
      left: -slideWidth
    }, 200, function() {
      $('#slider ul li:first-child').appendTo('#slider ul');
      $('#slider ul').css('left', '');
      callback();
    });
  }

  $('a.control_prev').click(function() {
    moveLeft();
  });

  $('a.control_next').click(function() {
    moveRight();
  });

  $('a.peek').click(function() {
    slide($('#slider ul'), $(this).attr('id').split('_')[1]);
  });

  function slide(el, peek) {
    if (el.find('li:nth-child(2)').attr('id') !== peek) {
      slideRight(function() {
        slide(el, peek);
      });
    }
  }

});
#slider {
  position: relative;
  overflow: hidden;
  margin: 20px auto 0 auto;
  border-radius: 4px;
}
#slider ul {
  position: relative;
  margin: 0;
  padding: 0;
  height: 200px;
  list-style: none;
}
#slider ul li {
  position: relative;
  display: block;
  float: left;
  margin: 0;
  padding: 0;
  width: 500px;
  height: 300px;
  background: #ccc;
  text-align: center;
  line-height: 300px;
}
a.control_prev,
a.control_next {
  position: absolute;
  top: 40%;
  z-index: 999;
  display: block;
  padding: 4% 3%;
  width: auto;
  height: auto;
  background: #2a2a2a;
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  font-size: 18px;
  opacity: 0.8;
  cursor: pointer;
}
a.control_prev:hover,
a.control_next:hover {
  opacity: 1;
  -webkit-transition: all 0.2s ease;
}
a.control_prev {
  border-radius: 0 2px 2px 0;
}
a.control_next {
  right: 0;
  border-radius: 2px 0 0 2px;
}
.slider_option {
  position: relative;
  margin: 10px auto;
  width: 160px;
  font-size: 18px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<a href="#" class="peek" id="link_one">SLIDE 1</a>
<br>
<a href="#" class="peek" id="link_two">SLIDE 2</a>
<br>
<a href="#" class="peek" id="link_three">SLIDE 3</a>
<br>
<a href="#" class="peek" id="link_four">SLIDE 4</a>
<br>
<div id="slider">
  <a href="#" class="control_next">
    <p>&gt;</p>
  </a>
  <a href="#" class="control_prev">
    <p>&lt;</p>
  </a>
  <ul>
    <li id="one">SLIDE 1</li>
    <li style="background: #aaa;" id="two">SLIDE 2</li>
    <li id="three">SLIDE 3</li>
    <li style="background: #aaa;" id="four">SLIDE 4</li>
  </ul>
</div>
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