Offcanvas 侧边栏 Bootstrap 3

Question

我的目标：

使用 Boostrap 3，创建一个独立滚动的侧边栏菜单。切换按钮需要在固定导航 header 中。 Semantic UI 具有我正在寻找的确切行为。我更愿意在不使用插件的情况下执行此操作。

我尝试过的事情：

Jansy Bootstrap Offcanvas Reveal Sidebar
- 主要问题：在菜单切换时，页面总是滚动到顶部。我需要它不滚动

Bootstrap Offcanvas Example
- 主要问题：在菜单切换时，菜单并不总是显示。我需要它自动成为最高值，以便它显示在固定导航下

Answer 1

无需任何插件即可轻松实现，您可以根据需要自定义它：

CSS:

body {
  overflow-x: hidden;
}
.off-canvas {
  width: 300px;
  position: fixed;
  left: 0;
  top: 0;
  height: 100%;
  overflow-x: hidden;
  overflow-y: auto;
  background-color: #333;
  transform: translateX(-100%);
  transition: .4s ease-in-out;
  z-index: 1060;
}
.off-canvas-active .off-canvas {
  transform: translateX(0);
}
.navbar-fixed-top {
  transition: .4s ease-in-out;
  width: 100%;
}
.page-wrapper {
  padding-top: 50px;
  transition: .4s ease-in-out;
}
.off-canvas-active .page-wrapper,
.off-canvas-active .navbar-fixed-top {
  transform: translateX(300px);
}
.list-group {
  padding: 20px;
}
.off-canvas-overlay {
  position: fixed;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, .5);
  z-index: 1050;
  visibility: hidden;
  opacity: 0;
  transition: .4s ease-in-out;
}
.off-canvas-active .off-canvas-overlay {
  opacity: 1;
  visibility: visible;
}

JS:

// Toggle on button click
$('.off-canvas-toggle').on('click', function(event) {
  event.preventDefault();
  $('body').toggleClass('off-canvas-active');
});

// Close on mouseup and touchend
$(document).on('mouseup touchend', function(event) {
  var offCanvas = $('.off-canvas')
  if (!offCanvas.is(event.target) && offCanvas.has(event.target).length === 0) {
    $('body').removeClass('off-canvas-active')
  }
});

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