javascript判断设备类型-手机(mobile)、安卓(android)、电脑(pc)、其他(ipad/iPod/Windows)等

浏览数：287 / 时间：2015年06月11日

使用device.js检测设备并实现不同设备展示不同网页

html代码：

<!doctype html>
<html>
<head>
  <meta charset="utf-8">
  <title></title>
  <script src="device.js"></script>
</head>

<body style="margin: auto; position: absolute; width:100%; height: 100%">
  <script>  
     var isMobile = device.mobile(),  
     isIos = device.ios(),
     isAndroid = device.android();
      if(isMobile){
        alert("手机");
      }else{
        alert("pc");
      }
      if(isIos){
        alert("ios");
      }
      if(isAndroid){
        alert(‘安卓‘);
      }

    </script>
</body>
</html>

引入device.js

(function() {
  var previousDevice, _addClass, _doc_element, _find, _handleOrientation, _hasClass, _orientation_event, _removeClass, _supports_orientation, _user_agent;

  previousDevice = window.device;

  window.device = {};

  _doc_element = window.document.documentElement;

  _user_agent = window.navigator.userAgent.toLowerCase();

  device.ios = function() {
    return device.iphone() || device.ipod() || device.ipad();
  };

  device.iphone = function() {
    return _find(‘iphone‘);
  };

  device.ipod = function() {
    return _find(‘ipod‘);
  };

  device.ipad = function() {
    return _find(‘ipad‘);
  };

  device.android = function() {
    return _find(‘android‘);
  };

  device.androidPhone = function() {
    return device.android() && _find(‘mobile‘);
  };

  device.androidTablet = function() {
    return device.android() && !_find(‘mobile‘);
  };

  device.blackberry = function() {
    return _find(‘blackberry‘) || _find(‘bb10‘) || _find(‘rim‘);
  };

  device.blackberryPhone = function() {
    return device.blackberry() && !_find(‘tablet‘);
  };

  device.blackberryTablet = function() {
    return device.blackberry() && _find(‘tablet‘);
  };

  device.windows = function() {
    return _find(‘windows‘);
  };

  device.windowsPhone = function() {
    return device.windows() && _find(‘phone‘);
  };

  device.windowsTablet = function() {
    return device.windows() && _find(‘touch‘);
  };

  device.fxos = function() {
    return (_find(‘(mobile;‘) || _find(‘(tablet;‘)) && _find(‘; rv:‘);
  };

  device.fxosPhone = function() {
    return device.fxos() && _find(‘mobile‘);
  };

  device.fxosTablet = function() {
    return device.fxos() && _find(‘tablet‘);
  };

  device.meego = function() {
    return _find(‘meego‘);
  };

  device.mobile = function() {
    return device.androidPhone() || device.iphone() || device.ipod() || device.windowsPhone() || device.blackberryPhone() || device.fxosPhone() || device.meego();
  };

  device.tablet = function() {
    return device.ipad() || device.androidTablet() || device.blackberryTablet() || device.windowsTablet() || device.fxosTablet();
  };

  device.portrait = function() {
    return Math.abs(window.orientation) !== 90;
  };

  device.landscape = function() {
    return Math.abs(window.orientation) === 90;
  };

  device.noConflict = function() {
    window.device = previousDevice;
    return this;
  };

  _find = function(needle) {
    return _user_agent.indexOf(needle) !== -1;
  };

  _hasClass = function(class_name) {
    var regex;
    regex = new RegExp(class_name, ‘i‘);
    return _doc_element.className.match(regex);
  };

  _addClass = function(class_name) {
    if (!_hasClass(class_name)) {
      return _doc_element.className += " " + class_name;
    }
  };

  _removeClass = function(class_name) {
    if (_hasClass(class_name)) {
      return _doc_element.className = _doc_element.className.replace(class_name, "");
    }
  };

  if (device.ios()) {
    if (device.ipad()) {
      _addClass("ios ipad tablet");
    } else if (device.iphone()) {
      _addClass("ios iphone mobile");
    } else if (device.ipod()) {
      _addClass("ios ipod mobile");
    }
  } else if (device.android()) {
    if (device.androidTablet()) {
      _addClass("android tablet");
    } else {
      _addClass("android mobile");
    }
  } else if (device.blackberry()) {
    if (device.blackberryTablet()) {
      _addClass("blackberry tablet");
    } else {
      _addClass("blackberry mobile");
    }
  } else if (device.windows()) {
    if (device.windowsTablet()) {
      _addClass("windows tablet");
    } else if (device.windowsPhone()) {
      _addClass("windows mobile");
    } else {
      _addClass("desktop");
    }
  } else if (device.fxos()) {
    if (device.fxosTablet()) {
      _addClass("fxos tablet");
    } else {
      _addClass("fxos mobile");
    }
  } else if (device.meego()) {
    _addClass("meego mobile");
  } else {
    _addClass("desktop");
  }

  _handleOrientation = function() {
    if (device.landscape()) {
      _removeClass("portrait");
      return _addClass("landscape");
    } else {
      _removeClass("landscape");
      return _addClass("portrait");
    }
  };

  _supports_orientation = "onorientationchange" in window;

  _orientation_event = _supports_orientation ? "orientationchange" : "resize";

  if (window.addEventListener) {
    window.addEventListener(_orientation_event, _handleOrientation, false);
  } else if (window.attachEvent) {
    window.attachEvent(_orientation_event, _handleOrientation);
  } else {
    window[_orientation_event] = _handleOrientation;
  }

  _handleOrientation();

}).call(this);

api列表：

Device	JavaScript Method
Mobile	device.mobile()
Tablet	device.tablet()
iOS	device.ios()
iPad	device.ipad()
iPhone	device.iphone()
iPod	device.ipod()
Android	device.android()
Android Phone	device.androidPhone()
Android Tablet	device.androidTablet()
BlackBerry	device.blackberry()
BlackBerry Phone	device.blackberryPhone()
BlackBerry Tablet	device.blackberryTablet()
Windows	device.windows()
Windows Phone	device.windowsPhone()
Windows Tablet	device.windowsTablet()
Firefox OS	device.fxos()
Firefox OS Phone	device.fxosPhone()
Firefox OS Tablet	device.fxosTablet()