Code used to determine whether the iPad, iPhone, and Android are landscape screens or landscape Screens Based on jQuery _ jquery

In the development of ipad and iphone web pages, we may need to determine whether the screen is landscape or landscape. The following describes how to use jQuery to determine whether an iPad, iPhone, or Android screen is a horizontal screen or a vertical screen. In fact, the method is mainly implemented through window. orientation. Let's take a look at the code below.

The Code is as follows:

Function orient (){
If (window. orientation = 90 | window. orientation =-90 ){
// Ipad and iphone portrait screen; Andriod landscape Screen
$ ("Body"). attr ("class", "landscape ");
Orientation = 'landscape ';
Return false;
}
Else if (window. orientation = 0 | Windows. orientation = 180 ){
// Horizontal screen of ipad and iphone; landscape screen of Andriod
$ ("Body"). attr ("class", "portrait ");
Orientation = 'portrait ';
Return false;
}
}
// Called during page loading
$ (Function (){
Orient ();
});
// Called when the user changes the screen direction
$ (Window). bind ('orientationchang', function (e ){
Orient ();
});

Window. orientation value corresponding to the screen direction:

Ipad: 90 or-90 horizontal screen
Ipad: 0 or 180 portrait Screen
Andriod: 0 or 180 horizontal screen
Andriod: 90 or-90 portrait Screen