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css3完美解决手机横竖屏判断,让用户看邀请函更爽_html/css_WEB-ITnose

WBOY
WBOYOriginal
2016-06-24 11:51:451431browse

html:


 

亲,请竖屏观看本屏内容,谢谢^_^




css:



/* 判断手机横竖屏  */

@media screen and (orientation:portrait) {
    /*  css[竖向定义样式]  */
    #cover1{display: none;width: 100%;height: 100%;background-color: #000;opacity:1;position: absolute;z-index: 9999;top: 0px;left: 0px;}
    #cover1w{display: none;width: 70%;height: 40px;position: absolute;z-index: 10000;top: 50%;left: 15%;margin-top: -20px;font-size: 18px;color: #fff;font-weight: bolder;text-align: center;}

}

@media screen and (orientation:landscape) {
    /*   css[横向定义样式]  */
    #cover1{display: block;width: 100%;height: 100%;background-color: #000;opacity:1;position: absolute;z-index: 9999;top: 0px;left: 0px;}
    #cover1w{display: block;width: 70%;height: 40px;position: absolute;z-index: 10000;top: 50%;left: 15%;margin-top: -20px;font-size: 18px;color: #fff;font-weight: bolder;text-align: center;}

}


/* PC客户端或大屏幕设备: 1280px 至更大 */
@media only screen and (min-width: 1280px) {
    #cover1{display: none;width: 100%;height: 100%;background-color: #000;opacity:1;position: absolute;z-index: 9999;top: 0px;left: 0px;}
    #cover1w{display: none;width: 70%;height: 40px;position: absolute;z-index: 10000;top: 50%;left: 15%;margin-top: -20px;font-size: 18px;color: #fff;font-weight: bolder;text-align: center;}
}




其他参考解决方案:


当用户旋转屏幕的时候,会进入到你的监听方法中,然后通过window.orientation来获取当前屏幕的状态:
0 - 竖屏
90 - 逆时针旋转横屏
-90 - 顺时针旋转横屏
180 - 竖屏,上下颠倒

 

如果你不希望用户使用横屏方式查看你的网页,你可以在设备旋转时间监听里面对body使用CSS3里面的transition中的旋转来保持页面竖向。

移动设备上的页面,当屏幕旋转的时候会有一个orientationchange事件。你可以给body元素增加此事件的监听:


js解决方案


今天这里我们分享一个jQuery的代码,能够有效帮助大家判断横屏或者竖屏。注意这里调用了jQuery的方法,所以你需要引用jQuery类库。function orient() {
alert('gete');
if (window.orientation == 0 || window.orientation == 180) {
$("body").attr("class", "portrait");
orientation = 'portrait';
return false;
}
else if (window.orientation == 90 || window.orientation == -90) {
$("body").attr("class", "landscape");
orientation = 'landscape';

return false;
}
}


$(function(){
orient();
});


$(window).bind( 'orientationchange', function(e){
orient();
});









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