javascript - Sencha Touch 2: tapping Ext.Msg.show that have no buttons -

i want display popup message without buttons.

ext.msg.show({    title: '',    message: 'some text goes here...',    buttons : [] }); 

it works fine. how make disappeared when tap on it?

i tried , got want

    ext.msg.show({         title: 'title',         message: 'some text goes here...',         itemid : 'showmsg',         buttons : [],         listeners:[              {                 element: 'element',                 delegate: '',                 event: 'tap',                 fn: function() {                     this.hide();                 }             }]     });