Title Pane触摸监测API

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文章信息

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文章

翻译:

翻译自: Title Pane Touch Observer API

由 hoolee

最后由 hamishwillee 在 22 Dec 2011 编辑

简介

标题触摸监测API允许一个程序监测用户对标题的触控。如利用这个API可以当用户按住标题栏时恢复程序缺省视图。这个需要完成MAknTitlePaneObserver的HandleTitlePaneEventL()方法，即可对标题触控响应

MMP文件

CAPABILITY none
LIBRARY avkon.lib

头文件

#include <akntitlepaneobserver.h>
 
class CSampleAppUi : public CAknAppUi, public MAknTitlePaneObserver
    {
    ...
    private:
    /**
    * From MAknTitlePaneObserver
    */
    void HandleTitlePaneEventL(TInt aEventID);
    ...
    };

源文件

#include <eikspane.h>
#include <akntitle.h>
 
// AppUi second-phase constructor
void CSampleAppUi::ConstructL()
    {
    ...
    // Call CAknAppUi::StatusPane() which returns CEikStatusPane*
    CEikStatusPane* statusPane = StatusPane();
    if (statusPane)
    {
       // Title pane UID
       TUid titlePaneUid; 
       titlePaneUid.iUid = EEikStatusPaneUidTitle;
       // Get pointer to CAknTitlePane object 
       CAknTitlePane* titlePane = (CAknTitlePane*) statusPane->ControlL(titlePaneUid);
       // Set this AppUi object as the observer of the title pane
       titlePane->SetTitlePaneObserver(this);
    }
    ...
    }
 
// Implementation of the observer interface
void CSampleAppUi::HandleTitlePaneEventL(TInt  aEventID)
    {
    // Although at the moment EAknTitlePaneTapped
    // is the only one value in the TAknTitlePaneEvents enumeration,
    // we should consider that later that enumeration could be extended
    if (aEventID == EAknTitlePaneTapped)
    {
	  // Custom action on title pane tapping event
    }
    else
    {
          // No implementation's required at the moment
    }
    }

后记

标题栏的触控将被监控到