tabPanel的隐藏与激活
在一个panel中优先建立了两个tabPanel页
var oneTab = addTabPage("1",APanel);
var twoTab = addTabPage("2",BPanel);
tabPanel.setActiveTab(oneTab);


这个function addTabPage如下代码

 var tabPanel = Ext.create('Ext.tab.Panel', {

        frame: false,

        fitToFrame: true,

        tabBar: {

            height: 22,

            defaults: {

                height: 22

            }

        },

        deferredRender: false

    });





    function addTabPage(title, form) {

        var index = tabPanel.items.length + 1;



        for (var i = 0; i < tabPanel.items.length; i++) {

            var tab = tabPanel.items.getAt(i);

            var t = tab.title;

            if (t == title) {

                tabPanel.setActiveTab(tab);

                return false;

            }

        }



        var tabPage = tabPanel.add({

            xtype: 'panel',

            title: title,

            layout: 'fit',

            fitToFrame: true,

            closable: false

        })

        tabPage.add(form);