问Extjs6.2.0列表不会以自定义defaultType形式显示在IOS上

EN

    Ext.define('MyApp.view.com.TransferListView',{
    extend : 'Ext.Container',
    xtype : 'xtransferlist',

    requires : [
      'MyApp.view.main.MyList'
    ],

    config:{
        layout:'fit',
        height:'100%',
        width:'100%'
    },

    items:[{
        xtype:'mylist',

        itemTpl:'{id}:{name}<br>{loremIpsum}',

        data:[{name:'Data Item', id:1},
        {name:'Data Item', id:2},
        {name:'Data Item', id:3},
        {name:'Data Item', id:4},
        {name:'Data Item', id:5},
        {name:'Data Item', id:6},
        {name:'Data Item', id:7},
        {name:'Data Item', id:8},
        {name:'Data Item', id:9, loremIpsum: 'Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.'},
        {name:'Data Item', id:10},
        {name:'Data Item', id:11},
        {name:'Data Item', id:12},
        {name:'Data Item', id:13},
        {name:'Data Item', id:14},
        {name:'Data Item', id:15}]
    }]
});

//List
Ext.define('MyApp.view.main.MyList', {
    extend: 'Ext.List',
    xtype: 'mylist',
    requires:['MyApp.view.main.MyListItem'],
    config:{
        defaultType:'mylistitem',
        useComponent:true,
        //useSimpleItems:true,
    },
    constructor: function(config) {
       // 
        Ext.applyIf(config || {}, {
            //other config option if any
        });
        this.callParent(arguments);
        this.initConfig(config);
        // this.on('painted',function(){
        //     debugger;
        //     this.refresh();
        // });
    }    
});


//ListItem
Ext.define('MyApp.view.main.MyListItem', {
    extend: 'Ext.dataview.ListItem', //extend: 'Ext.dataview.component.ListItem',//(6.0.2-working)
    xtype: 'mylistitem',
    // config:{
    //     minHeight:'100px', 
    //     height:'100px' //displayed after setting height here
    //     layout:'fit'
    // },
    // constructor: function(config) {
    //     
    //     Ext.applyIf(config || {}, {
    //         //other config option if any
    //     });
    //     this.callParent(arguments);
    //     this.initConfig(config);
    // },
});