sencha-touch1.1播放视频

Ext.setup({        tabletStartupScreen: 'tablet_startup.png',        phoneStartupScreen: 'phone_startup.png',        icon: 'icon.png',        glossOnIcon: false,        onReady: function() {            var pnl = new Ext.Panel({                layout: {                    type: 'vbox',                    pack: 'center'               },                items: [{                    xtype: 'video',                    url: 'space.mp4',                    loop: true,                    width: 500,                    height: 400,                    poster: 'Screenshot.png'             }],                fullscreen: true         })      }});