when and where is getControllerName called

2022-01-11 11:51:42

Created by Jerry Wang on Aug 07, 2014

localResources

registerModulePath

在开发js view时，需要实现一个方法getControllerName，并且正确返回该js view对应的controller name.

when and where is getControllerName called

Callstack1: 这个方法从根源上说是在实例化JS view时被触发:

when and where is getControllerName called

Callstack2: 以实例化时传入的参数来调用view方法:

when and where is getControllerName called

Callstack3: 在view方法内，调用constructor sap.ui.core.mvc.JSView创建一个新的JS view实例:

when and where is getControllerName called

Callstack4: 在_initCompositeSupport内部，调用function c. this指向正在初始化的Js view实例，s是传入的对象字面量。

when and where is getControllerName called

Callstack5: 在function c的实现内，JS view实例是实参，传入形参t, line 41call 形参的getControllerName方法，因而会call 到application view里实现的getController方法

when and where is getControllerName called

待application 返回controller name存入到变量d之后，UI framework将会以该名称创建一个controller instance:

when and where is getControllerName called

Lazy load:

when and where is getControllerName called

mymap.map传入方法q.sap.require:

when and where is getControllerName called

准备加载文件mymap/map.controller.js. 注意系统是怎样将mymap.map 转化成mymap/map.controller.js的:

when and where is getControllerName called

这里会去取对应的controller js文件。可见如果getControllerName 返回的controller内容不正确，这里将会load不了正确的controller文件。

when and where is getControllerName called

可以做个试验：故意返回一个错误的controller name:

when and where is getControllerName called

console里报错说找不到对应的controller文件:

when and where is getControllerName called

码农公寓