// 页面隐藏出来后执行方法var htmlBridgeReloadData = function(){    main.getWorkType()}    function getHiddenProp() {        var prefixes = ['webkit', 'moz', 'ms', 'o'];        if ('hidden' in document) return 'hidden';        for (var i = 0; i < prefixes.length; i++) {            if ((prefixes[i] + 'Hidden') in document)                return prefixes[i] + 'Hidden';        }        return null;    }    function getVisibilityState() {        var prefixes = ['webkit', 'moz', 'ms', 'o'];        if ('visibilityState' in document) return 'visibilityState';        for (var i = 0; i < prefixes.length; i++) {            if ((prefixes[i] + 'VisibilityState') in document)                return prefixes[i] + 'VisibilityState';        }        return null;    }    function isHidden() {        var prop = getHiddenProp();        if (!prop) return false;        return document[prop];    }    var visProp = getHiddenProp();    if (visProp) {        var evtname = visProp.replace(/[H|h]idden/, '') + 'visibilitychange';        document.addEventListener(evtname, function () {            htmlBridgeReloadData();        }, false);    }