sencha-touch - Sencha Touch itemtap

Question

我有一个 sencha touch 显示在列表中的联系人列表。然后，当您单击列表中的姓名时，它应该向右滑动并说您好 {联系人姓名}!但是当它现在滑过时，它只是说你好!第 29 行是项目点击的 Action 发生的地方，我相信问题就在这里。我只是不知道如何正确格式化它。下面是我的源代码。

ListDemo = new Ext.Application({
name: "ListDemo",

launch: function() {

    ListDemo.detailPanel = new Ext.Panel({
        id: 'detailpanel',
        tpl: 'Hello, {firstName}!',
        dockedItems: [
            {
                xtype: 'toolbar',
                items: [{
                    text: 'back',
                    ui: 'back',
                    handler: function() {
                        ListDemo.Viewport.setActiveItem('disclosurelist', {type:'slide', direction:'right'});
                    }
                }]
            }
        ]
    });

    ListDemo.listPanel = new Ext.List({
        id: 'disclosurelist',
        store: ListDemo.ListStore,
        itemTpl: '<div class="contact">{firstName} {lastName}</div>',

        listeners:{
            itemtap: function(record, index){               
            ListDemo.detailPanel.update(record.data);
            ListDemo.Viewport.setActiveItem('detailpanel');
            }
        }
    });

    ListDemo.Viewport = new Ext.Panel ({
        fullscreen: true,
        layout: 'card',
        cardSwitchAnimation: 'slide',
        items: [ListDemo.listPanel, ListDemo.detailPanel]
    });

}

});

Answer 1

传递给 itemtap 事件的第一个参数不是被点击的 List 项目的记录，而是 DataView 本身。

从文档:

itemtap : ( Ext.DataView this, Number index, Ext.Element item, Ext.EventObject e ) Fires when a node is tapped on

Listeners will be called with the following arguments:
this : Ext.DataView
    The DataView object
index : Number
    The index of the item that was tapped
item : Ext.Element
    The item element
e : Ext.EventObject
    The event object

您可以使用以下方法获取点击的记录:

dataView.store.getAt(index); // where 'dataView' is 1st argument and 'index' the 2nd