react项目配置postcss-px2rem-exclude
1、安装yarn add postcss-px2rem-exclude2、在config-overrides.js文件中配置addPostcssPluginsconst {override,addPostcssPlugins} = require('customize-cra')module.exports = override(addPostcssPlugins([require('postcs
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1、安装
yarn add postcss-px2rem-exclude
2、在config-overrides.js文件中配置addPostcssPlugins
const {override,addPostcssPlugins} = require('customize-cra')
module.exports = override(
addPostcssPlugins([
require('postcss-px2rem-exclude')({
remUnit: 75,
propList: ['*'],
// exclude: /node_modules/,
exclude: /node_modules\/antd-mobile/
})
])
)
3、在index.html文件的<head></ head>中添加配置即可,我这里是以750px为基准
<script>
(function (win, lib) {
var doc = win.document;
var docEl = doc.documentElement;
var metaEl = doc.querySelector('meta[name="viewport"]');
var flexibleEl = doc.querySelector('meta[name="flexible"]');
var dpr = 0;
var scale = 0;
var tid;
var flexible = lib.flexible || (lib.flexible = {});
if (metaEl) {
console.warn("将根据已有的meta标签来设置缩放比例");
var match = metaEl
.getAttribute("content")
.match(/initial-scale=([d.]+)/);
if (match) {
scale = parseFloat(match[1]);
dpr = parseInt(1 / scale);
}
} else if (flexibleEl) {
var content = flexibleEl.getAttribute("content");
if (content) {
var initialDpr = content.match(/initial-dpr=([d.]+)/);
var maximumDpr = content.match(/maximum-dpr=([d.]+)/);
if (initialDpr) {
dpr = parseFloat(initialDpr[1]);
scale = parseFloat((1 / dpr).toFixed(2));
}
if (maximumDpr) {
dpr = parseFloat(maximumDpr[1]);
scale = parseFloat((1 / dpr).toFixed(2));
}
}
}
if (!dpr && !scale) {
var isAndroid = win.navigator.appVersion.match(/android/gi);
var isIPhone = win.navigator.appVersion.match(/iphone/gi);
var devicePixelRatio = win.devicePixelRatio;
if (isIPhone) {
// iOS下,对于2和3的屏,用2倍的方案,其余的用1倍方案
if (devicePixelRatio >= 3 && (!dpr || dpr >= 3)) {
dpr = 3;
} else if (devicePixelRatio >= 2 && (!dpr || dpr >= 2)) {
dpr = 2;
} else {
dpr = 1;
}
} else {
// 其他设备下,仍旧使用1倍的方案
dpr = 1;
}
scale = 1 / dpr;
}
docEl.setAttribute("data-dpr", dpr);
if (!metaEl) {
metaEl = doc.createElement("meta");
metaEl.setAttribute("name", "viewport");
metaEl.setAttribute(
"content",
"initial-scale=" +
scale +
", maximum-scale=" +
scale +
", minimum-scale=" +
scale +
", user-scalable=no"
);
if (docEl.firstElementChild) {
docEl.firstElementChild.appendChild(metaEl);
} else {
var wrap = doc.createElement("div");
wrap.appendChild(metaEl);
doc.write(wrap.innerHTML);
}
}
function refreshRem() {
var width = docEl.getBoundingClientRect().width;
// if (width / dpr > 540) {
// width = 540 * dpr;
// }
var rem = width / 10;
docEl.style.fontSize = rem + "px";
flexible.rem = win.rem = rem;
}
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
);
if (doc.readyState === "complete") {
doc.body.style.fontSize = 12 * dpr + "px";
} else {
doc.addEventListener(
"DOMContentLoaded",
function (e) {
doc.body.style.fontSize = 12 * dpr + "px";
},
false
);
}
refreshRem();
flexible.dpr = win.dpr = dpr;
flexible.refreshRem = refreshRem;
flexible.rem2px = function (d) {
var val = parseFloat(d) * this.rem;
if (typeof d === "string" && d.match(/rem$/)) {
val += "px";
}
return val;
};
flexible.px2rem = function (d) {
var val = parseFloat(d) / this.rem;
if (typeof d === "string" && d.match(/px$/)) {
val += "rem";
}
return val;
};
})(window, window["lib"] || (window["lib"] = {}));
</script>
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