Jquery Mobile:强制刷新内容

Question

我有一个很大的问题:我有一个listview和每个项链接到页面#concorsi.当我点击链接时,URL成为#concorsi?numero=1因为我从JSON中获取表单号1.

当我第一次点击它一切都好.每个输入都是用jQuery Mobile类可视化的,但是如果我回来并进入相同的链接后代码不会刷新.标题很好地可视化但内容没有.如何强制刷新div内容？

这些是我的JavaScript函数:

<script type="text/javascript">
$(document).bind( "pagebeforechange", function( e, data ) {
    // We only want to handle changePage() calls where the caller is
    // asking us to load a page by URL.

    if ( typeof data.toPage === "string" ) {
        // We are being asked to load a page by URL, but we only
        // want to handle URLs that request the data for a specific

        var u = $.mobile.path.parseUrl( data.toPage ),
            re = /^#concorso/;
        if ( u.hash.search(re) !== -1 ) {
            // We're being asked to display the items for a specific category.
            // Call our internal method that builds the content for the category
            // on the fly based on our in-memory category data structure.
            showConcorso( u, data.options);
            // Make sure to tell changePage() we've handled this call so it doesn't
            // have to do anything.
            e.preventDefault(); 
        }
    }
});
</script>

而showConcorso()L

function showConcorso( urlObj, options )
{
    document.getElementById('conccont').innerHTML="";
    var concorsoNum = urlObj.hash.replace( /.*numero=/, "" ),

        // Get the object that represents the category we
        // are interested in. Note, that at this point we could
        // instead fire off an ajax request to fetch the data, but
        // for the purposes of this sample, it's already in memory.
        concorso = obj.concorsi[ concorsoNum ],

        // The pages we use to display our content are already in
        // the DOM. The id of the page we are going to write our
        // content into is specified in the hash before the '?'.
        pageSelector = urlObj.hash.replace( /\?.*$/, "" );

    if ( concorso ) {
        // Get the page we are going to dump our content into.
        var $page = $( pageSelector ),

            // Get the header for the page.
            $header = $page.children( ":jqmData(role=header)" ),

            // Get the content area element for the page.
            $content = $page.children( ":jqmData(role=content)" ),
            $footer = $page.children( ":jqmData(role=footer)" );



        // Find the h1 element in our header and inject the name of
        // the category into it.
        $header.find( "h1" ).html(concorso['title']);

        markup=document.createElement('form');
        markup.setAttribute('action','#home');
        markup.setAttribute('method','POST');
        markup.id="concForm";
        markup.onchange="alert (test)";
        items=obj.concorsi[concorsoNum].elementi;

        for(field in items) {
            nest=items[field];
            nest=obj.campi[nest];
            switch(nest.type){
                case "free": markup.appendChild(createFree(nest));
                            break;
                case "text": markup.appendChild(createText(nest));
                            break;
                case "textarea": markup.appendChild(createTextArea(nest));
                            break;
                case "switch": markup.appendChild(createSwitch(nest));
                            break;
                case "switchcust": markup.appendChild(createSwitchCustom(nest));
                            break;
                case "slider": markup.appendChild(createSlider(nest));
                            break;
                case "select": markup.appendChild(createSelect(nest));
                            break;
                case "checkbox": markup.appendChild(createCheckbox(nest));
                            break;
                case "radio": markup.appendChild(createRadio(nest));
                            break;
                case "reset": markup.appendChild(createButton(nest));
                            break;
                case "submit": markup.appendChild(createButton(nest));
                            break;
            }
        }

        // Inject the category items markup into the content element.
        $content.html( markup );

        // Pages are lazily enhanced. We call page() on the page
        // element to make sure it is always enhanced before we
        // attempt to enhance the listview markup we just injected.
        // Subsequent calls to page() are ignored since a page/widget
        // can only be enhanced once.

        $page.page();


        // We don't want the data-url of the page we just modified
        // to be the url that shows up in the browser's location field,
        // so set the dataUrl option to the URL for the category
        // we just loaded.
        options.dataUrl = urlObj.href;

        // Now call changePage() and tell it to switch to
        // the page we just modified.
        $.mobile.changePage( $page, options );
    }
}

Answer 1

要刷新页面用户:

.trigger('create');

更多信息:

• http://jquerymobile.com/demos/1.0/docs/pages/page-scripting.html

创建与刷新:重要区别
请注意,某些小部件具有的创建事件和刷新方法之间存在重要差异.create事件适用于增强包含一个或多个小部件的原始标记.刷新方法应该用于已经以编程方式操作的现有(已经增强的)小部件,并且需要更新UI以匹配.

例如,如果您有一个页面,您在页面创建后动态添加了一个带有data-role = listview属性的新的无序列表,则在该列表的父元素上触发create会将其转换为listview样式的小部件.如果以编程方式添加更多列表项,则调用listview的refresh方法会将这些新列表项更新为增强状态,并保持现有列表项不变.

您还可以像这样刷新列表视图:

$('#mylist').listview('refresh');

更多信息:

• http://jquerymobile.com/demos/1.0/docs/lists/docs-lists.html

更新列表
如果将项目添加到列表视图,则需要在其上调用refresh()方法来更新样式并创建添加的任何嵌套列表.例如:

$('#mylist').listview('refresh');

请注意,refresh()方法仅影响追加到列表的新节点.这是出于性能原因而完成的.刷新过程将忽略已增强的任何列表项.这意味着如果更改已增强的列表项的内容或属性,则不会反映这些内容或属性.如果要更新列表项,请在调用refresh之前将其替换为新标记.

刷新表单元素:

• http://jquerymobile.com/demos/1.0/docs/forms/docs-forms.html

刷新表单元素
在jQuery Mobile中,一些增强的表单控件只是样式化(输入),但其他是自定义控件(选择,滑块),由本机控件构建并与之保持同步.要以编程方式使用JavaScript更新表单控件,首先操作本机控件,然后使用refresh方法告诉增强控件更新自身以匹配新状态.以下是如何更新常用表单控件,然后调用refresh方法的一些示例:

复选框:

$("input[type='checkbox']").prop("checked",true).checkboxradio("refresh");

收音机:

$("input[type='radio']").prop("checked",true).checkboxradio("refresh");

选择:

var myselect = $("#selectfoo");
myselect[0].selectedIndex = 3;
myselect.selectmenu("refresh");

滑块:

$("input[type='range']").val(60).slider("refresh");

翻转开关(他们使用滑块):

var myswitch = $("#selectbar");
myswitch[0].selectedIndex = 1;
myswitch.slider("refresh");

可折叠:

$('div[data-role=collapsible]').collapsible();