HTML5中判断横屏竖屏javascript
在移动端中咱们常常碰到横屏竖屏的问题,那么咱们应该如何去判断或者针对横屏、竖屏来写不一样的代码呢。css
这里有两种方法:html
写在同一个CSS中 java
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@media
screen
and (orientation:
portrait
) {
/*竖屏 css*/
}
@media
screen
and (orientation:
landscape
) {
/*横屏 css*/
}
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分开写在2个CSS中post
竖屏url
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<
link
rel="stylesheet" media="all and (orientation:portrait)" href="portrait.css">
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横屏spa
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<
link
rel="stylesheet" media="all and (orientation:landscape)" href="landscape.css">
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//判断手机横竖屏状态:
window.addEventListener(
"onorientationchange"
in
window ?
"orientationchange"
:
"resize"
,
function
() {
if
(window.orientation === 180 || window.orientation === 0) {
alert(
'竖屏状态!'
);
}
if
(window.orientation === 90 || window.orientation === -90 ){
alert(
'横屏状态!'
);
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