SenchaCmd学习笔记(4):核心概念class system

SenchaCmd学习笔记(4):

核心概念class system

1.核心概念

•     The class system, and creating and extending class

•     Events

•     Querying

•     Containers

•     Layouts

2.class system(类库)

•     Ext

•     Ext.Base

•     Ext.Class

•     Ext.ClassManager

•     Ext.Loader

3.Ext

application:Ext.application({});

define:Ext.define(name,data, callback);,extend/override/singleton

create:Ext.create(Class,Options);,

onReady:Ext.onReady(function(){ });

widget:Ext.widget(‘panel’, {renderTo: Ext.getBody(),title: ‘Panel’});等同于:Ext.create(‘Ext.panel.Panel’, {renderTo: Ext.getBody(),title: ‘Panel’});

(窗口小部件)

getClass:

var button = new Ext.Button();

Ext.getClass(button);    // returns Ext.Button

getClassName:

Ext.getClassName(Ext.Button);        //returns "Ext.Button"

4.Ext.Base(所有类继承自Base,原型)

5.Ext.Class

6.Ext.ClassManager(管理所有类和映射,从字符串类名到实际的类的对象)

•     Ext.define

•     Ext.create

•     Ext.widget

•     Ext.getClass

•     Ext.getClassName

7.Ext.Loader

Ext.require([‘widget.window’, ‘layout.border’,’Ext.data.Connection’]);

Ext.require([‘widget.‘, ‘layout.‘, ‘Ext.data.*’);

Ext.exclude(‘Ext.data.‘).require(‘‘);