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Extjs Sencha Touch Ext.TabPanel处理程序_Extjs_Sencha Touch 2 - Fatal编程技术网

Extjs Sencha Touch Ext.TabPanel处理程序

Extjs Sencha Touch Ext.TabPanel处理程序,extjs,sencha-touch-2,Extjs,Sencha Touch 2,我读了很多书,但我不明白这一点。 此应用程序使用Sencha Touch 2.0 我的“应用程序”有一个分段按钮 xtype: 'segmentedbutton' 与此项目 { text: 'Blog', scope: this, handler: this.makeYqlRequest } { title: 'Blog', iconCls: 'home', html: 'Blog Screen' } 这就是它的作用 blog: { query: "select * from rs

我读了很多书,但我不明白这一点。 此应用程序使用Sencha Touch 2.0

我的“应用程序”有一个分段按钮

xtype: 'segmentedbutton'
与此项目

{
text: 'Blog',
scope: this,
handler: this.makeYqlRequest
}
{
title: 'Blog',
iconCls: 'home',
html: 'Blog Screen'
}
这就是它的作用

blog: {
    query: "select * from rss where url='http://feeds.feedburner.com/extblog' limit 5",
    tpl: Ext.create('Ext.XTemplate', [
        '<tpl if="item">',
            '<tpl for="item">',
                '<div class="blog-post">',
                    '<h3><a href="{link}" target="_blank">{title}</a></h3>',
                    '<p>{description}</p>',
                '</div>',
            '</tpl>',
        '</tpl>'
    ])
}
如何从分段按钮获取处理程序以使用Ext.TabPanel? 我和一个听众玩了一会儿,但我无法让它发挥作用

有人能再给我解释一下吗


谢谢大家!

您需要获取对选项卡面板的引用,并调用
[setActiveItem](http://docs.sencha.com/touch/2-0/#!/api/Ext.Container-method-setActiveItem)
,传递要激活的视图或该视图的索引

简单示例(可查看):

Ext.setup({
    onReady: function() {
        var tabPanel = Ext.create('Ext.tab.Panel', {
            fullscreen: true,
            items: [
                {
                    title: 'Home',
                    items: [
                        {
                            xtype: 'toolbar',
                            items: [
                                {
                                    xtype: 'segmentedbutton',
                                    items: [
                                        {
                                            text: 'home'
                                        },
                                        {
                                            text: 'blog',
                                            handler: function() {
                                                // Using an index
                                                tabPanel.setActiveItem(1);
                                            }
                                        },
                                        {
                                            text: 'about',
                                            handler: function() {
                                                // Using a reference
                                                var about = tabPanel.down('#about');
                                                tabPanel.setActiveItem(about);
                                            }
                                        }
                                    ]
                                }
                            ]
                        },
                        {
                            html: 'tap one of the above buttons to change the active tab.'
                        }
                    ]
                },
                {
                    title: 'Blog',
                    html: 'blog'
                },
                {
                    title: 'About',
                    itemId: 'about',
                    items: [
                        {
                            xtype: 'toolbar',
                            docked: 'top',
                            items: [
                                {
                                    text: 'Go to home',
                                    handler: function() {
                                        // using the index
                                        tabPanel.setActiveItem(0);
                                    }
                                }
                            ]
                        }
                    ]
                }
            ]
        });
    }
});