Extjs4.0 怎么样获得tab选项卡的索引

Question

 如题  
  有哪位前辈知道的，请告诉我，感激不尽！

Answer 1

    var tabs = Ext.widget('tabpanel', {
       id:'main_tab', 
        resizeTabs: true,
        enableTabScroll: true,
        width: 800,
        defaults: {
            autoScroll: true,
            bodyPadding: 10
        },
        items: [{
           id:'123',
            title: 'Asino',
            html: '<Asino>',
            closable: false
        }],
            margins:'5 0 5 5'
    });
///////////得到当前
tabs.getActiveTab().title;

Answer 2

 Ext.onReady(function () {
                Ext.create('Ext.tab.Panel', {
                    width: 400,
                    height: 400,
                    renderTo: document.body,
                    items: [{
                        title: 'Foo'
                    }, {
                        title: 'Bar',
                        tabConfig: {
                            title: 'Custom Title',
                            tooltip: 'A button tooltip'
                        }
                    }],
                    buttons: [{
                        'text': 'abc',
                        handler: function () {
                            var tab = this.up('tabpanel').getActiveTab();
                            var idx = this.up('tabpanel').items.indexOf(tab);
                            alert(idx);
                        }
                    }]
                });
            });