jssor 根据媒体查询改变高度答案

【问题标题】：jssor changing height depending on media queriesjssor 根据媒体查询改变高度
【发布时间】：2017-06-09 15:11:06
【问题描述】：

我想根据视口宽度更改 jssor 滑块的高度，以确保可以读取我的幻灯片的 HTML。我正在使用 ScaleSlider 函数从桌面和平板电脑断点缩放滑块，然后当我在移动断点（宽度低于 480 像素）中时，我想将滑块的大小更改为 100% 宽度和另一个高度（不成比例到初始宽度和高度）。

使其工作的唯一方法是重新加载页面（==重新初始化 jssor）

CSS

.sliderContainer{
    width: 1180px;
    height: 680px;
    position: relative;
    overflow: hidden;
    @media screen and (max-width: $media-basicmobile-max){
        width: 300px;
        height: 425px;
    }
    .slides {
        width:1180px;
        height: 680px;
        position: absolute;
        overflow: hidden;
        @media screen and (max-width: $media-basicmobile-max){
            width: 300px;
            height: 425px;
        }
    }
}

有什么想法吗？可能会在窗口调整大小时克隆滑块 HTML 内容并初始化滑块。

【问题讨论】：

标签： jssor

【解决方案1】：

您可以使用断点定义包装器，并在调整窗口大小时缩放滑块以覆盖整个包装器区域。请看下面的例子，

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Full Screen Slider Cover Window - Jssor Slider</title>
    <style>
        html, body {
            margin: 0px;
            padding: 0px;
            width: 100%;
            height: 100%;
            background: #fff;
        }

        #wrapper {
            margin: 0 auto;
            width: 1180px;
            height: 680px;
            max-width: 100%;
            position: relative;
            overflow: hidden;
        }

        @media screen and (max-width: 500px) {
            #wrapper {
                width: 300px;
                height: 425px;
            }
        }
    </style>
</head>
<body>
    <script type="text/javascript" src="../js/jssor.slider.min.js"></script>

    <script>
        jssor_slider1_init = function () {

            var options = {
                $SlideDuration: 800,                   //[Optional] Specifies default duration (swipe) for slide in milliseconds, default value is 500
                $DragOrientation: 1,                   //[Optional] Orientation to drag slide, 0 no drag, 1 horizental, 2 vertical, 3 either, default value is 1 (Note that the $DragOrientation should be the same as $PlayOrientation when $Cols is greater than 1, or parking position is not 0)
                $AutoPlay: 1,                          //[Optional] Auto play or not, to enable slideshow, this option must be set to greater than 0. Default value is 0. 0: no auto play, 1: continuously, 2: stop at last slide, 4: stop on click, 8: stop on user navigation (by arrow/bullet/thumbnail/drag/arrow key navigation)
                $Idle: 1500                            //[Optional] Interval (in milliseconds) to go for next slide since the previous stopped if the slider is auto playing, default value is 3000
            };

            var sliderContainerElement = document.getElementById("slider1_container");
            var jssor_slider1 = new $JssorSlider$(sliderContainerElement, options);

            //#region responsive code begin
            //remove responsive code if you don't want the slider to scale along with window
            function ScaleSlider() {
                var wrapperElement = document.getElementById("wrapper");
                var wrapperWidth = wrapperElement.clientWidth;

                if (wrapperWidth) {
                    var wrapperHeight = wrapperElement.clientHeight;

                    var originalWidth = jssor_slider1.$OriginalWidth();
                    var originalHeight = jssor_slider1.$OriginalHeight();

                    if (originalWidth / wrapperWidth > originalHeight / wrapperHeight) {
                        jssor_slider1.$ScaleHeight(wrapperHeight);
                    }
                    else {
                        jssor_slider1.$ScaleWidth(wrapperWidth);
                    }

                    //adjust vertical position
                    var scaleHeight = jssor_slider1.$ScaleHeight();
                    sliderContainerElement.style.top = ((wrapperHeight - scaleHeight) / 2) + "px";
                }
                else
                    window.setTimeout(ScaleSlider, 30);
            }

            ScaleSlider();

            $Jssor$.$AddEvent(window, "load", ScaleSlider);
            $Jssor$.$AddEvent(window, "resize", ScaleSlider);
            $Jssor$.$AddEvent(window, "orientationchange", ScaleSlider);
            //#endregion responsive code end
        };
    </script>

    <div id="wrapper">
        <div style="position: absolute; left: 50%; margin-left: -2500px; width: 5000px; text-align: center;">
            <!-- Jssor Slider Begin -->
            <!-- To move inline styles to css file/block, please specify a class name for each element. -->
            <div id="slider1_container" style="position: relative; margin: 0 auto; top: 0px; left: 0px; width: 600px; height: 300px;">

                <!-- Loading Screen -->
                <div data-u="loading" style="position:absolute;top:0px;left:0px;background:url('../img/loading.gif') no-repeat 50% 50%; background-color: rgba(0, 0, 0, .7);"></div>

                <!-- Slides Container -->
                <div u="slides" style="cursor: move; position: absolute; left: 0px; top: 0px; width: 600px;  height: 300px;
            overflow: hidden;">
                    <div>
                        <img u=image src="../img/landscape/01.jpg" />
                    </div>
                    <div>
                        <img u=image src="../img/landscape/02.jpg" />
                    </div>
                    <div>
                        <img u=image src="../img/landscape/03.jpg" />
                    </div>
                    <div>
                        <img u=image src="../img/landscape/04.jpg" />
                    </div>
                </div>

                <!-- Trigger -->
                <script>
                    jssor_slider1_init();
                </script>
            </div>
            <!-- Jssor Slider End -->
        </div>
    </div>

    <!-- remove the following if no need-->
    <p>other content</p>
</body>
</html>

【讨论】：