Empty nested list display - sencha-touch-2

Question

Based on newly created Sencha Touch 2 app as it is learned here.
Then I'd like to add my nested list - hierarchical menu tree and found that doesn't matter - my store inline or my store read from json - nothing displayed inside tab 'Menu'.
What's wrong?
Important files / code fragments:
MVC section in app.js:
// MVC
views: [
'Main'
],
models: [
'MenuItem'
],
stores: [
'MenuTree'
],
view.Main.js:
Ext.define('MobilePost.view.Main', {
extend: 'Ext.tab.Panel',
xtype: 'main',
requires: [
'Ext.TitleBar',
'Ext.data.TreeStore',
'Ext.dataview.NestedList',
'Ext.data.proxy.JsonP',
'MobilePost.store.MenuTree'
],
config: {
tabBarPosition: 'bottom',
items: [
{
// From tutorial, working
title: 'Home',
iconCls: 'home',
cls: 'home',
html: [
'<img src="http://staging.sencha.com/img/sencha.png" />',
'<h1>Welcome to Sencha Touch</h1>'
].join("")
},
{
// From tutorial, working
xtype: 'nestedlist',
title: 'Blog',
iconCls: 'star',
displayField: 'title',
store: {
type: 'tree',
fields: [
'title', 'link', 'author', 'contentSnippet', 'content',
{ name: 'leaf', defaultValue: true }
],
root: {
leaf: false
},
proxy: {
type: 'jsonp',
url: 'https://ajax.googleapis.com/ajax/services/feed/load?v=1.0&q=http://feeds.feedburner.com/SenchaBlog',
reader: {
type: 'json',
rootProperty: 'responseData.feed.entries'
}
}
},
detailCard: {
xtype: 'panel',
scrollable: true,
styleHtmlContent: true
},
listeners: {
itemtap: function( nestedList, list, index, element, post ) {
this.getDetailCard().setHtml(post.get('content'));
}
}
},
{
// Mine, not working
xtype: 'nestedlist',
title: 'Menu',
iconCls: 'settings',
store: 'MenuTree'
}
]
}
});
Model - model.MenuItem.js:
Ext.define('MobilePost.model.MenuItem', {
extend: 'Ext.data.Model',
config: {
fields: [
'id', // Menu item id for events
'text', // Menu item text
{ name: 'leaf', defaultValue: false }
]
}
});
Store - store.MenuTree.js:
Ext.define('MobilePost.store.MenuTree', {
extend: 'Ext.data.TreeStore',
requires: [ 'MobilePost.model.MenuItem' ],
type: 'tree',
defaultRootProperty: 'items',
config: {
model: 'MobilePost.model.MenuItem',
/*
// TODO: inline store - uncomment to use
root: {
items: [
{
id: 'settings',
text: 'Settings',
items: [
{
id: 'shift',
text: 'Working shift',
leaf: true
},
{
id: 'users',
text: 'Users',
leaf: true
},
{
id: 'cash',
text: 'Cash',
leaf: true
}
]
}
]
}*/
// TODO: JSON store - comment for inline store
proxy: {
type: 'ajax',
url: 'menu.json'
}
},
// TODO: JSON store - comment for inline store
root: {}
});
JSON - menu.json (valid, passed check by jsonlint.com):
{
"items": [
{
"id": "settings",
"text": "Settings",
"items": [
{
"id": "shift",
"text": "Working shift",
"leaf": true
},
{
"id": "users",
"text": "Operators",
"leaf": true
},
{
"id": "cash",
"text": "Cash",
"leaf": true
}
]
}
]
}

Answer 1

At what point your store is loaded? Shouldn't you use autoLoad:true in your store?
also if you don't want to create and load your store with application load you should manually create store whenever required and set it to list
var treeStore = Ext.create('MobilePost.store.MenuTree');
treeStore.load();
and use this as store attribute in your view
{
// Mine, not working
xtype: 'nestedlist',
title: 'Menu',
id: 'myListId',
iconCls: 'settings',
store: treeStore
}
OR set the store if view is already created
Ext.getCmp('myListId').setStore(treeStore);