首页 > 代码库 > H5跨平台开发app之横竖屏导致的图表混乱问题
H5跨平台开发app之横竖屏导致的图表混乱问题
在跨平台开发中,犹豫使用的是非原生开发语言,会导致很多不方便的地方,最近公司做一个统计图表的东西,如果用原生开发的话比较容易控制图表显示时手机屏幕的方向,在跨平台开发中比较麻烦,
如果用户打开了手机屏幕自动旋转,有可能导致图表显示的错误。
解决方案:
<!DOCTYPE html> <html lang=‘en‘> <head> <meta charset=‘UTF-8‘> <title>ichartjs designer</title> <script src=http://www.mamicode.com/‘http://www.ichartjs.com/ichart.latest.min.js‘></script>"js/jquery-2.1.1.min.js"></script> <script type="text/javascript"> var evt = "onorientationchange" in window ? "orientationchange" : "resize"; window.addEventListener(evt, function() { console.log(evt); var width = document.documentElement.clientWidth; var height = document.documentElement.clientHeight; $print = $(‘#ichart-render‘); if(width > height) { $print.width(width); $print.height(height); $print.css(‘top‘, 0); $print.css(‘left‘, 0); $print.css(‘transform‘, ‘none‘); $print.css(‘transform-origin‘, ‘50% 50%‘); //这里取得了图表显示控件后要对其进行设置CSS,否则来回旋转将导致布局错误 var x = document.getElementById("ichart-render"); x.style.position = "absolute"; x.style.top = "20%"; } else { $print.width(height); $print.height(width); $print.css(‘top‘, 0); $print.css(‘left‘, 0); $print.css(‘transform‘, ‘none‘); $print.css(‘transform-origin‘, ‘50% 50%‘); } }, false); </script> <script type=‘text/javascript‘> var w = document.documentElement.clientWidth; var h = document.documentElement.clientHeight; var diameter = Math.min(w, h); //这里获得了手机屏幕的宽高后,为了旋转手机的时候导致界面不混乱,需要将显 示的图表设置为宽高最小的正方形(取巧) console.log(diameter); $(function() { var chart = iChart.create({ render: "ichart-render", width: w, height: w, background_color: "#fefefe", gradient: false, color_factor: 0.2, border: { color: "BCBCBC", width: 1 }, align: "center", offsetx: 0, offsety: 0, sub_option: { border: { color: "#BCBCBC", width: 1 }, label: { fontweight: 500, fontsize: 11, color: "#4572a7", sign: "square", sign_size: 12, border: { color: "#BCBCBC", width: 1 }, background_color: "#fefefe" } }, shadow: true, shadow_color: "#666666", shadow_blur: 2, showpercent: false, column_width: "70%", bar_height: "70%", radius: "90%", title: { text: "利用ichartjs制作漂亮图表", color: "#111111", fontsize: 20, font: "微软雅黑", textAlign: "center", height: 30, offsetx: 0, offsety: 0 }, subtitle: { text: "", color: "#111111", fontsize: 16, font: "微软雅黑", textAlign: "center", height: 20, offsetx: 0, offsety: 0 }, footnote: { text: "", color: "#111111", fontsize: 12, font: "微软雅黑", textAlign: "right", height: 20, offsetx: 0, offsety: 0 }, legend: { enable: false, background_color: "#fefefe", color: "#333333", fontsize: 12, border: { color: "#BCBCBC", width: 1 }, column: 1, align: "right", valign: "center", offsetx: 0, offsety: 0 }, coordinate: { width: "80%", height: "84%", background_color: "#ffffff", axis: { color: "#a5acb8", width: [1, "", 1, ""] }, grid_color: "#d9d9d9", label: { fontweight: 500, color: "#666666", fontsize: 11 } }, label: { fontweight: 500, color: "#666666", fontsize: 11 }, type: "pie2d", data: [{ name: "名称A", value: 20, color: "#4572a7" }, { name: "名称B", value: 30, color: "#aa4643" }, { name: "名称C", value: 40, color: "#89a54e" }, { name: "新增", value: 10, color: "#4572a7" }] }); chart.draw(); }); </script> <style type="text/css"> #ichart-render { position: absolute; top: 20%; } </style> </head> <body > <div id=‘ichart-render‘></div> </body> </html>
H5跨平台开发app之横竖屏导致的图表混乱问题
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