h5锁屏提醒-锁横屏和锁竖屏


移动端开发,我们一般是只做一套适配,但是拿手机来说,它又分横屏和竖屏;这两种屏幕要求的适配是完全不一样的。当我们只做了其他一种,不想做另外一种的话,屏幕使用提示就很重要了。
比如我们只做了竖屏的适配,不想让用户看到横屏的情况:
这里写图片描述
比如我们只做了横屏的适配,不想让用户看到竖屏的情况:
这里写图片描述
上面两种提醒是用了js控制的(图片用了base64的,看起来代码有点长):
第一种:

//竖屏处理
    function landscape(config){
            var color = config && config.color ? config.color : "#000",
                txt = config && config.txt ? config.txt : "为了更好的体验,请使用竖屏浏览",
                images = config && config.images ? config.images : "data:image/png;base64,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";
            $('body').append('<style type="text/css">@-webkit-keyframes rotation{10%{transform: rotate(90deg); -webkit-transform: rotate(90deg)} 50%, 60%{transform: rotate(0deg); -webkit-transform: rotate(0deg)} 90%{transform: rotate(90deg); -webkit-transform: rotate(90deg)} 100%{transform: rotate(90deg); -webkit-transform: rotate(90deg)} } @keyframes rotation{10%{transform: rotate(90deg); -webkit-transform: rotate(90deg)} 50%, 60%{transform: rotate(0deg); -webkit-transform: rotate(0deg)} 90%{transform: rotate(90deg); -webkit-transform: rotate(90deg)} 100%{transform: rotate(90deg); -webkit-transform: rotate(90deg)} } #orientLayer{display: none; z-index: 999999;} @media screen and (min-aspect-ratio: 12/7){#orientLayer{display: block;} } .mod-orient-layer{display: none; position: fixed; height: 100%; width: 100%; left: 0; top: 0; right: 0; bottom: 0; background: '+color+'; z-index: 9997} .mod-orient-layer__content{position: absolute; width: 100%; top: 45%; margin-top: -75px; text-align: center} .mod-orient-layer__icon-orient{background-image: url('+images+'); display: inline-block; width: 67px; height: 109px; transform: rotate(90deg); -webkit-transform: rotate(90deg); -webkit-animation: rotation infinite 1.5s ease-in-out; animation: rotation infinite 1.5s ease-in-out; -webkit-background-size: 67px; background-size: 67px} .mod-orient-layer__desc{margin-top: 20px; font-size: 15px; color: #fff}</style><div id="orientLayer" class="mod-orient-layer"> <div class="mod-orient-layer__content"> <i class="icon mod-orient-layer__icon-orient"></i> <div class="mod-orient-layer__desc">'+txt+'</div> </div></div>');
    }
    //竖屏提示
    landscape();

第二种:

//横屏处理
function landScape(config){
    var bg = config && config.bg ? config.bg : "#000",
        txt = config && config.txt ? config.txt : "请解除竖排锁定,使用横屏浏览",
        img = config && config.img ? config.img : "data:image/png;base64,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";
    $('body').append('<style type="text/css">@-webkit-keyframes rotation{10%{transform: rotate(90deg); -webkit-transform: rotate(90deg)} 50%, 60%{transform: rotate(0deg); -webkit-transform: rotate(0deg)} 90%{transform: rotate(90deg); -webkit-transform: rotate(90deg)} 100%{transform: rotate(90deg); -webkit-transform: rotate(90deg)} } @keyframes rotation{10%{transform: rotate(90deg); -webkit-transform: rotate(90deg)} 50%, 60%{transform: rotate(0deg); -webkit-transform: rotate(0deg)} 90%{transform: rotate(90deg); -webkit-transform: rotate(90deg)} 100%{transform: rotate(90deg); -webkit-transform: rotate(90deg)} } #orientLayer{display: none; z-index: 999999;} @media all and (orientation : portrait){#orientLayer{display: block;} } .mod-orient-layer{display: none; position: fixed; height: 100%; width: 100%; left: 0; top: 0; right: 0; bottom: 0; background: '+bg+'; z-index: 9997} .mod-orient-layer__content{position: absolute; width: 100%; top: 45%; margin-top: -75px; text-align: center} .mod-orient-layer__icon-orient{background-image: url('+img+'); display: inline-block; width: 67px; height: 109px; transform: rotate(90deg); -webkit-transform: rotate(90deg); -webkit-animation: rotation infinite 1.5s ease-in-out; animation: rotation infinite 1.5s ease-in-out; -webkit-background-size: 67px; background-size: 67px} .mod-orient-layer__desc{margin-top: 20px; font-size: 15px; color: #fff}</style><div id="orientLayer" class="mod-orient-layer"> <div class="mod-orient-layer__content"> <i class="icon mod-orient-layer__icon-orient"></i> <div class="mod-orient-layer__desc">'+txt+'</div> </div></div>');
}
//竖屏提示
    landScape();

这里的做法是最简单,一个图片见识黑色背景。想美化的话,可以写些css

js判断浏览器设备与内核

今天写一个下载页面的时候需要判断android或者ios设备以及不同的浏览器打开方式。
上网搜索了一下教程 发现这个教程最清晰简单,并且很好用。在此记录一下,方便以后使用

原理:根据navigator.userAgent返回值识别

var u = navigator.userAgent;
var isAndroid = u.indexOf('Android') > -1 || u.indexOf('Adr') > -1; //android终端
var isiOS = !!u.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/); //ios终端

判断访问终端

//判断访问终端
var browser={
    versions:function(){
        var u = navigator.userAgent, app = navigator.appVersion;
        return {
            trident: u.indexOf('Trident') > -1, //IE内核
            presto: u.indexOf('Presto') > -1, //opera内核
            webKit: u.indexOf('AppleWebKit') > -1, //苹果、谷歌内核
            gecko: u.indexOf('Gecko') > -1 && u.indexOf('KHTML') == -1,//火狐内核
            mobile: !!u.match(/AppleWebKit.*Mobile.*/), //是否为移动终端
            ios: !!u.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/), //ios终端
            android: u.indexOf('Android') > -1 || u.indexOf('Adr') > -1, //android终端
            iPhone: u.indexOf('iPhone') > -1 , //是否为iPhone或者QQHD浏览器
            iPad: u.indexOf('iPad') > -1, //是否iPad
            webApp: u.indexOf('Safari') == -1, //是否web应该程序,没有头部与底部
            weixin: u.indexOf('MicroMessenger') > -1, //是否微信 (2015-01-22新增)
            qq: u.match(/\sQQ/i) == " qq" //是否QQ
        };
    }(),
    language🙁navigator.browserLanguage || navigator.language).toLowerCase()
}

不同的浏览器设备显示不同内容

//判断是否android浏览器
if(browser.versions.android && !browser.versions.weixin){ 
   alert(这是android浏览器)
 }

//判断是否ios浏览器
if(browser.versions.ios && !browser.versions.weixin){
   alert(这是IOS浏览器)
}
//判断是否微信浏览器
if(browser.versions.weixin){   
   alert(这是微信浏览器)
}

if(!browser.versions.android && !browser.versions.ios && !browser.versions.weixin){
   alert(非andriodios 以及微信浏览器)
}