jQueryMobile中窗口大小更改时更改div ID和属性 [英] Change div id and property when window size change in jquerymobile

问题描述

我当前的代码是

<div id="column-left">
     Test
</div>

当窗口大小小于640px时，如何将其更改为:

When the window size is smaller than 640px, how can I change it as:

<div data-role="panel" id="left-panel" data-position="left">
     Test
</div>

data-role ="panel"是jquerymobile代码.问题集中在如何将data-role ="panel"属性添加到div上.谢谢！

data-role="panel" is jquerymobile code. The question is focusing on how we can add the data-role="panel" attribute to the div. Thanks!

您可以在 http://jsbin.com/wakagumu/11/edit.如果成功，则将id ="column-left"更改为data-role ="panel" id ="left-panel"后，测试"FIRST"将消失.

You may test your code in http://jsbin.com/wakagumu/11/edit. If it success, the test "FIRST" will disappear after changing the id="column-left" to data-role="panel" id="left-panel".

推荐答案

更改属性不会将div转换为 panel ，您需要初始化手动.在jQuery Mobile 1.3中，当动态添加 panel 以便对其进行初始化时，应使用.trigger("pagecreate").

Changing attributes won't convert a div into a panel, you need to initialize it manually. In jQuery Mobile 1.3, you should use .trigger("pagecreate") when appending a panel dynamically in order to initialize it.

以下解决方案创建 panel 并在 page 的宽度较小时移动 content div的元素；并删除 panel 并将 content div的元素返回到其原始位置.另外，它在 header 内创建一个按钮以打开 panel .它可以用于任何 page事件以及窗口的throttledresize和orientationchange.

The below solution creates a panel and moves content div's elements when page's width is small; and it removes panel and returns content div's element to their original position. Also, it creates a button inside header to open the panel. It can be used in any page events as well as on window's throttledresize and orientationchange.

$(window).on("throttledresize", function () {
    var activePage = $.mobile.activePage;
    if ($(window).width() < 500 && activePage.find("[data-role=panel]").length === 0) {
       /* create button */
        var button = $("<a/>", {
            "data-role": "button",
                "data-icon": "bars",
                "id": "panelBtn",
                "data-theme": "e",
            class: "ui-btn-left"
        }).text("Panel");
        /* add click listener to open panel 
           and append it to header         */
        activePage.find(".ui-header").append($(button).on("click", function () {
            $("#left-panel").panel("open");
        }));

        /* save menu */
        var menu = $("#menu");
        /* create a panel 
           append menu
           create page    */
        activePage.prepend($("<div/>", {
            id: "left-panel",
                "data-role": "panel",
                "data-position": "left",
                "data-display": "push"
        }).append($("<div/>", {
            class: "ui-panel-inner"
        }).append(menu))).trigger("pagecreate");
    }

    if ($(window).width() > 500 && activePage.find("[data-role=panel]").length === 1) {
        /* remove panel and button
           return menu to content div */
        if (activePage.hasClass("ui-page-panel-open")) {
            activePage.find("[data-role=panel]").panel("close").on("panelclose", function () {
                var menu1 = activePage.find("[data-role=panel] #menu");
                activePage.find("[data-role=content]").append(menu1);
                activePage.find("[data-role=panel]").remove();
                activePage.find("#panelBtn").remove();
                activePage.trigger("pagecreate");
            });
        } else {
            var menu1 = activePage.find("[data-role=panel] #menu");
            activePage.find("[data-role=content]").append(menu1);
            activePage.find("[data-role=panel]").remove();
            activePage.find("#panelBtn").remove();
            activePage.trigger("pagecreate");
        }
    }
});

演示

Demo

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