转载-js如何设置网页横屏和竖屏切换
- <!DOCTYPE html>
- <html>
- <head>
- <meta http-equiv="Content-Type" content="application/xhtml+xml;charset=UTF-8" />
- <meta name="viewport" content="width=device-width" />
- <title>手机横、竖屏事件</title>
- <script language="javascript" type="text/javascript">
- //屏幕方向标识,0横屏,其他值竖屏
- var orientation=0;
- //转屏事件,内部功能可以自定义
- function screenOrientationEvent(){
- if(orientation == 0)document.getElementById("change").value="竖";
- else document.getElementById("change").value="横";
- }
- var innerWidthTmp = window.innerWidth;
- //横竖屏事件监听方法
- function screenOrientationListener(){
- try{
- var iw = window.innerWidth;
- //屏幕方向改变处理
- if(iw != innerWidthTmp){
- if(iw>window.innerHeight)orientation = 90;
- else orientation = 0;
- //调用转屏事件
- screenOrientationEvent();
- innerWidthTmp = iw;
- }
- } catch(e){alert(e);};
- //间隔固定事件检查是否转屏,默认500毫秒
- setTimeout("screenOrientationListener()",500);
- }
- //启动横竖屏事件监听
- screenOrientationListener();
- </script>
- </head>
- <body onload="screenOrientationEvent()">
- <input id="change" type="text" value=""/>
- </body>
- </html>
注:js手机横竖屏事件实现的方法(不依赖任何其他库),从客户角度是违反了用户的自定义行为的。