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移动端页面适配问题

2024-11-24 21:44:39   203人阅读

移动端页面满屏自适应方案（采用rem作为单位，设计稿为750 * 1334）

  • 修改自阿里的lib-flexible，与lib-flexible相比，删除了dpr，保留rem
  • 满屏自适应，要求设计稿为750 * 1334
  • 单位换算为1rem = 50px      

   代码引入：

<head>
    <script>function refreshRem(){var e=docEl.getBoundingClientRect().width,t=docEl.getBoundingClientRect().height;if(e/t>750/1334)var i=t/26.68;else var i=e/15;docEl.style.fontSize=i+"px"}var win=window,doc=win.document,docEl=doc.documentElement,tid;win.addEventListener("resize",function(){clearTimeout(tid),tid=setTimeout(refreshRem,300)},!1),win.addEventListener("pageshow",function(e){e.persisted&&(clearTimeout(tid),tid=setTimeout(refreshRem,300))},!1),refreshRem();</script>
</head>

源码

var win = window;
var doc = win.document;
var docEl = doc.documentElement;
var tid;

function refreshRem(){
    var width = docEl.getBoundingClientRect().width;
    var height = docEl.getBoundingClientRect().height;
    if ((width / height) > (750 / 1334)) {
        var rem = height / (1334 / 50);
    } else {
        var rem = width / (750 / 50);
    }
    docEl.style.fontSize = rem + ‘px‘;
}

win.addEventListener(‘resize‘, function() {
    clearTimeout(tid);
    tid = setTimeout(refreshRem, 300);
}, false);
win.addEventListener(‘pageshow‘, function(e) {
    if (e.persisted) {
        clearTimeout(tid);
        tid = setTimeout(refreshRem, 300);
    }
}, false);

refreshRem();

移动端页面适配问题


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