关于H5页面在iPhoneX适配
?1. iPhoneX的介绍
屏幕尺寸
我们熟知的iPhone系列开发尺寸概要如下：
△ iPhone各机型的开发尺寸
转化成我们熟知的像素尺寸：
△ 每个机型的多维度尺寸
倍图其实就是像素尺寸和开发尺寸的倍率关系，但这只是外在的表现。倍图核心的影响因素在于PPI（DPI），了解屏幕密度与各尺寸的关系有助于我们深度理解倍率的概念：《基础知识学起来！为设计师量身打造的DPI指南》
iPhone8在本次升级中，屏幕尺寸和分辨率都遗传了iPhone6以后的优良传统；
然而iPhone X 无论是在屏幕尺寸、分辨率、甚至是形状上都发生了较大的改变，下面以iPhone 8作为参照物，看看到底iPhone X的适配我们要怎么考虑。
我们看看iPhone X尺寸上的变化：
2. iPhoneX的适配---安全区域(safe area)
苹果对于 iPhone X 的设计布局意见如下：
body固定为：
this is subElement
1.单色时：
* { padding: 0; margin: 0; } body { background:green; padding-top: constant(safe-area-inset-top); //88px /*padding-left: constant(safe-area-inset-left);*/ /*padding-right: constant(safe-area-inset-right);*/ /*padding-bottom: constant(safe-area-inset-bottom);*/ }
2.渐变色
* { padding: 0; margin: 0; } body { background:-webkit-gradient(linear, 0 0, 0 bottom, from(#ffd54f), to(#ffaa22)); padding-top: constant(safe-area-inset-top); //88px /*padding-left: constant(safe-area-inset-left);*/ /*padding-right: constant(safe-area-inset-right);*/ /*padding-bottom: constant(safe-area-inset-bottom);*/ }
解决使用渐变色 仍旧填充整个屏幕的方法；CSS设置如下
DOCTYPE html>
<html>
<head>
<meta name="viewport" content="initial-scale=1, viewport-fit=cover">
<title>Designing Websites for iPhone X: Respecting the safe areastitle>
<style> * {
padding: 0;
margin: 0;
}
html, body {
height: 100%;
}
body {
padding-top: constant(safe-area-inset-top);
padding-left: constant(safe-area-inset-left);
padding-right: constant(safe-area-inset-right);
padding-bottom: constant(safe-area-inset-bottom);
}
.content {
background: -webkit-gradient(linear, 0 0, 0 bottom, from(#ffd54f), to(#ffaa22));
width: 100%;
height: 724px;
} style>
head>
<body>
<div class="content">this is subElementdiv>
body>
html>
2.页面元素使用了固定定位的适配即：{position:fixed;}
2.1 子元素页面固定在底部时；使用viewport-fit:contain时;可以看到bottom:0时只会显示在安全区域内；
DOCTYPE html>
<html>
<head>
<meta name="viewport" content="initial-scale=1">
<title>Designing Websites for iPhone X: Respecting the safe areastitle>
<style>
* {
padding: 0;
margin: 0;
}
/*html,body {*/
/*height: 100%;*/
/*}*/
body {
background: grey;
/*padding-top: constant(safe-area-inset-top);*/
/*padding-left: constant(safe-area-inset-left);*/
/*padding-right: constant(safe-area-inset-right);*/
/*padding-bottom: constant(safe-area-inset-bottom);*/
}
.top {
width: 100%;
height: 44px;
background: purple;
}
.bottom {
position: fixed;
bottom: 0;
left: 0;
right: 0;
height: 44px;
color: black;
background: green;
}
style>
head>
<body>
<div class="top">this is topdiv>
<div class="bottom">this is bottomdiv>
body>
html>
2.1 子元素页面固定在底部时；使用viewport-fit:cover时;可以看到bottom:0时只会显示在安全区域内；
* {
padding: 0;
margin: 0;
}
/*html,body {*/
/*height: 100%;*/
/*}*/
body {
background: grey;
padding-top: constant(safe-area-inset-top);
/*padding-left: constant(safe-area-inset-left);*/
/*padding-right: constant(safe-area-inset-right);*/
/*padding-bottom: constant(safe-area-inset-bottom);*/
}
.top {
width: 100%;
height: 44px;
background: purple;
}
.bottom {
position: fixed;
bottom: 0;
left: 0;
right: 0;
height: 44px;
color: black;
background: green;
}
添加html,body {width:100%;heigth:100%}
图1：
* { padding: 0; margin: 0; } html,body { height: 100%; } body { background: grey; padding-top: constant(safe-area-inset-top); padding-left: constant(safe-area-inset-left); padding-right: constant(safe-area-inset-right); padding-bottom: constant(safe-area-inset-bottom); } .top { width: 100%; height: 44px; background: purple; } .bottom { position: fixed; bottom: 0; left: 0; right: 0; height: 44px; color: black; background: green; }
图2：
* { padding: 0; margin: 0; } html,body { height: 100%; } body { background: grey; padding-top: constant(safe-area-inset-top); padding-left: constant(safe-area-inset-left); padding-right: constant(safe-area-inset-right); /*padding-bottom: constant(safe-area-inset-bottom);*/ } .top { width: 100%; height: 44px; background: purple; } .bottom { position: fixed; bottom: 0; left: 0; right: 0; height: 44px; color: black; background: green; }
2.3 关于alertView弹框 遮罩层的解决方案
DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width,initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no, viewport-fit=cover">
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<title>alertViewtitle>
<script data-res="eebbk">
document.documentElement.style.fontSize = window.screen.width / 7.5 + 'px';
script>
<style>
* {
margin: 0;
padding: 0;
}
html,body {
width: 100%;
height: 100%;
}
body {
font-size: 0.32rem;
padding-top: constant(safe-area-inset-top);
padding-left: constant(safe-area-inset-left);
padding-right: constant(safe-area-inset-right);
padding-bottom: constant(safe-area-inset-bottom);
}
.content {
text-align: center;
}
.testBut {
margin: 50px auto;
width: 100px;
height: 44px;
border: 1px solid darkgray;
outline:none;
user-select: none;
background-color: yellow;
}
style>
<link href="alertView.css" rel="stylesheet" type="text/css">
head>
<body>
<section class="content">
<button class="testBut" onclick="showLoading()">弹框加载button>
section>
<script type="text/javascript" src="alertView.js">script>
<script>
function showLoading() {
UIAlertView.show({
type:"input",
title:"温馨提示", //标题
content:"VIP会员即将到期", //获取新的
isKnow:false
});
var xx = new UIAlertView();
console.log(xx);
}
script>
body>
html>
参考资料：
iPhone X的Web设计
iPhone X适配没那么复杂，但也不是看上去这么简单
剖析 iOS 11 网页适配问题
iPhone X(10)屏幕分辨率与适配
iPhone X 适配手Q H5 页面通用解决方案