Symbian UI framework 程序启动步骤

pursuer_zhao

于 2008-10-15 11:09:00 发布

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文章标签： symbian ui application insert function

本文链接：https://blog.youkuaiyun.com/pursuer_zhao/article/details/3078769

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本文详细解析了Symbian操作系统中应用程序从启动到UI显示的全过程，包括关键函数调用顺序及其作用，如E32Main(), NewApplication(), CMyApplication::CreateDocumentL(), CMyDocument::CreateAppUiL(), CMyAppUi::ConstructL(), CMyAppView::ConstructL()等，为开发者理解Symbian应用架构提供指导。

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1. E32Main()
    ->EikStart::RunApplication(NewApplication)

2.NewApplication()
        ->return new CMyApplication;

3. The framework call
    ->CMyApplication::CreateDocumentL();
        ->CMyDocument::NewL();

4.This function is called by the UI framework during application start-up
        ->CMyDocument::CreateAppUiL()
        ->return new(ELeave) CMyAppUi;

5. CMyAppUi::ConstructL() //create view and insert into control stack

    ->iAppView=CMyAppView::NewL(...);
        AddToStackL(iAppView);

   //CMyAppUi handle all kinds of message

6. CMyAppview::ConstructL()
    ->CreateWindowL();
    ->...
    ->ACtivateL(); //Sets the control as ready to be drawn.