zoukankan      html  css  js  c++  java
  • H5适配方案

    一般ui设计,分为750,720,640宽,分别引入以下js

    750

    ;(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('½«¸ù¾ÝÒÑÓеÄmeta±êÇ©À´ÉèÖÃËõ·Å±ÈÀý');
    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) {
    // iOSÏ£¬¶ÔÓÚ2ºÍ3µÄÆÁ£¬ÓÃ2±¶µÄ·½°¸£¬ÆäÓàµÄÓÃ1±¶·½°¸
    if (devicePixelRatio >= 3 && (!dpr || dpr >= 3)) {
    dpr = 3;
    } else if (devicePixelRatio >= 2 && (!dpr || dpr >= 2)){
    dpr = 2;
    } else {
    dpr = 1;
    }
    } else {
    // ÆäËûÉ豸Ï£¬ÈÔ¾ÉʹÓÃ1±¶µÄ·½°¸
    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 > 750) {
    width = 750 * dpr;
    }
    var rem = width / 7.5;
    docEl.style.fontSize = rem + 'px';
    var realitySize = parseInt(window.getComputedStyle(document.documentElement).fontSize);
    if (rem !== realitySize) {
    rem = rem * rem / realitySize;
    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'] = {}));

    ;(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 > 750) {
    width = 750 * dpr;
    }
    var rem = width / 7.2;
    docEl.style.fontSize = rem + 'px';
    var realitySize = parseInt(window.getComputedStyle(document.documentElement).fontSize);
    if (rem !== realitySize) {
    rem = rem * rem / realitySize;
    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'] = {}));

    ;(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 > 750) {
    width = 750 * dpr;
    }
    var rem = width / 6.4;
    docEl.style.fontSize = rem + 'px';
    var realitySize = parseInt(window.getComputedStyle(document.documentElement).fontSize);
    if (rem !== realitySize) {
    rem = rem * rem / realitySize;
    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'] = {}));

    在css中设置,以rem为单位
    ui是100px,在css中使用 1rem
    ui是10px,在css中使用 .1rem
    ui是1px, 在css中使用 .01rem
    字体的设置,需要在css中加下以下样式
    [data-dpr="1"] .fz-12 {
    font-size: 6PX;
    }
    [data-dpr="2"] .fz-12 {
    font-size: 12PX;
    }
    [data-dpr="3"] .fz-12 {
    font-size: 18PX;
    }
    [data-dpr="1"] .fz-14 {
    font-size: 7PX;
    }
    [data-dpr="2"] .fz-14 {
    font-size: 14PX;
    }
    [data-dpr="3"] .fz-14 {
    font-size: 21PX;
    }
    [data-dpr="1"] .fz-16{
    font-size: 8PX;
    }
    [data-dpr="2"] .fz-16 {
    font-size: 16PX;
    }
    [data-dpr="3"] .fz-16 {
    font-size: 24PX;
    }
    [data-dpr="1"] .fz-18{
    font-size: 9PX;
    }
    [data-dpr="2"] .fz-18 {
    font-size: 18PX;
    }
    [data-dpr="3"] .fz-18 {
    font-size: 27PX;
    }
    [data-dpr="1"] .fz-20{
    font-size: 10PX;
    }
    [data-dpr="2"] .fz-20 {
    font-size: 20PX;
    }
    [data-dpr="3"] .fz-20 {
    font-size: 30PX;
    }
    [data-dpr="1"] .fz-22{
    font-size: 11PX;
    }
    [data-dpr="2"] .fz-22 {
    font-size: 22PX;
    }
    [data-dpr="3"] .fz-22 {
    font-size: 33PX;
    }
    [data-dpr="1"] .fz-24{
    font-size: 12PX;
    }
    [data-dpr="2"] .fz-24 {
    font-size: 24PX;
    }
    [data-dpr="3"] .fz-24 {
    font-size: 36PX;
    }
    [data-dpr="1"] .fz-26{
    font-size: 13PX;
    }
    [data-dpr="2"] .fz-26 {
    font-size: 26PX;
    }
    [data-dpr="3"] .fz-26 {
    font-size: 39PX;
    }
    [data-dpr="1"] .fz-28{
    font-size: 14PX;
    }
    [data-dpr="2"] .fz-28 {
    font-size: 28PX;
    }
    [data-dpr="3"] .fz-28 {
    font-size: 42PX;
    }
    [data-dpr="1"] .fz-30{
    font-size: 15PX;
    }
    [data-dpr="2"] .fz-30 {
    font-size: 30PX;
    }
    [data-dpr="3"] .fz-30 {
    font-size: 45PX;
    }
    [data-dpr="1"] .fz-32{
    font-size: 16PX;
    }
    [data-dpr="2"] .fz-32 {
    font-size: 32PX;
    }
    [data-dpr="3"] .fz-32 {
    font-size: 48PX;
    }
    [data-dpr="1"] .fz-34{
    font-size: 17PX;
    }
    [data-dpr="2"] .fz-34 {
    font-size: 34PX;
    }
    [data-dpr="3"] .fz-34 {
    font-size: 51PX;
    }
    [data-dpr="1"] .fz-36{
    font-size: 18PX;
    }
    [data-dpr="2"] .fz-36 {
    font-size: 36PX;
    }
    [data-dpr="3"] .fz-36 {
    font-size: 54PX;
    }
    [data-dpr="1"] .fz-38{
    font-size: 19PX;
    }
    [data-dpr="2"] .fz-38 {
    font-size: 38PX;
    }
    [data-dpr="3"] .fz-38 {
    font-size: 57PX;
    }
    [data-dpr="1"] .fz-40{
    font-size: 20PX;
    }
    [data-dpr="2"] .fz-40 {
    font-size: 40PX;
    }
    [data-dpr="3"] .fz-40 {
    font-size: 60PX;
    }
    [data-dpr="1"] .fz-42{
    font-size: 21PX;
    }
    [data-dpr="2"] .fz-42 {
    font-size: 42PX;
    }
    [data-dpr="3"] .fz-42{
    font-size: 63PX;
    }
    [data-dpr="1"] .fz-44{
    font-size: 22PX;
    }
    [data-dpr="2"] .fz-44 {
    font-size: 44PX;
    }
    [data-dpr="3"] .fz-44{
    font-size: 66PX;
    }
    [data-dpr="1"] .fz-48{
    font-size: 24PX;
    }
    [data-dpr="2"] .fz-48{
    font-size: 48PX;
    }
    [data-dpr="3"] .fz-48{
    font-size: 72PX;
    }
    [data-dpr="1"] .fz-50{
    font-size: 25PX;
    }
    [data-dpr="2"] .fz-50 {
    font-size: 50PX;
    }
    [data-dpr="3"] .fz-50 {
    font-size: 75PX;
    }
    [data-dpr="1"] .fz-60{
    font-size: 30PX;
    }
    [data-dpr="2"] .fz-60 {
    font-size: 60PX;
    }
    [data-dpr="3"] .fz-60 {
    font-size: 90PX;
    }
    [data-dpr="1"] .fz-80{
    font-size: 40PX;
    }
    [data-dpr="2"] .fz-80 {
    font-size: 80PX;
    }
    [data-dpr="3"] .fz-80 {
    font-size: 120PX;
    }

    使用:ui字体是12px,html标签加上类名 .fz-12
    如果要用px,也可以这样去用:
    rem.less

    .px2px(@name, @px){
    @{name}: round(@px / 2) * 1;
    [data-dpr="2"] & {
    @{name}: @px;
    }
    [data-dpr="3"] & {
    @{name}: round(@px / 2 * 3) * 1;
    }
    }

    ————————————————
    版权声明:本文为CSDN博主「nbin斌」的原创文章,遵循 CC 4.0 BY-SA 版权协议,转载请附上原文出处链接及本声明。
    原文链接:https://blog.csdn.net/nbin2008/java/article/details/82965391

  • 相关阅读:
    Root Android and Install Recovery linux shell script & Android root原理
    MPEG4 144962和H.264什么区别?
    Android root的两种方法 udev漏洞和setuid漏洞
    [转载]android三个特殊的资源目录 /res/xml /res/raw 和 /assets
    avast注册号|好用的avast注册号|没过期avast注册号
    忘记烦恼|如何忘记烦恼|忘记烦恼的方法
    第六感|最近又出现第六感了这个是什么问题呢
    移动手机为什么还有话费,就停机了,和客服的谈话
    .net保存中文到cookie时是乱码取出来的时候
    skype账号|超值skype账号|14分钟skype账号|1元40个|15天有效期
  • 原文地址:https://www.cnblogs.com/2019gdiceboy/p/12695238.html
Copyright © 2011-2022 走看看