复制代码 代码如下:
var $horizontal = $(".horizontal_screen") ; //可自定义横屏模式提示样式
var $document = $(document) ;
var preventDefault = function(e) {
e.preventDefault();
};
var touchstart = function(e) {
$document.on("touchstart touchmove", preventDefault);
};
var touchend = function(e) {
$document.off("touchstart touchmove", preventDefault);
};
function listener(type){
if("add" == type){
//竖屏模式
$horizontal.addClass("hide");
$document.off("touchstart", touchstart);
$document.off("touchend", touchend);
}else{
//横屏模式
$horizontal.removeClass("hide");
$document.on("touchstart", touchstart);
$document.on("touchend", touchend);
}
}
function orientationChange(){
switch(window.orientation) {
//竖屏模式
case 0:
case 180:
listener("add");
break;
//横屏模式
case -90:
case 90:
listener("remove");
break;
}
}
$(window).on("onorientationchange" in window ? "orientationchange" : "resize", orientationChange);
$document.ready(function(){
//以横屏模式进入界面,提示只支持竖屏
if(window.orientation == 90 || window.orientation == -90){
listener("remove");
}
});