在触屏UI应用程序中给予触摸反馈

转自：http://wiki.forum.nokia.com/index.php/%E5%9C%A8%E8%A7%A6%E5%B1%8FUI%E5%BA%94%E7%94%A8%E7%A8%8B%E5%BA%8F%E4%B8%AD%E7%BB%99%E4%BA%88%E8%A7%A6%E6%91%B8%E5%8F%8D%E9%A6%88

CS001164

 

• 开发伙伴平台：

S60 5th Edition

 

• 详细描述

触摸反馈是在触摸屏幕交互成功后给予用户一种物理反馈（震动）。我们可以在注册时增加，修改或移除反馈区域。在注册时可以选择打开此功能，MTouchFeedback可以取得触摸反馈示例的指针。

下列代码自签名即可执行。

Contents

 [hide]

• 1 MMP
• 2 头文件
• 3 源文件
• 4 后记

MMP

需要下列链接库和能力：

CAPABILITY  None       
 
LIBRARY     touchfeedback.lib

 

头文件

需要包含两个头文件

#include <touchfeedback.h>
#include <touchlogicalfeedback.h>
 
class CImageConverterContainer : public CCoeControl, 
public MCoeControlObserver, public MAknLongTapDetectorCallBack
    {
    ...
    private:
        MTouchFeedback*      iTouchFeedBack;   
    ...
    }

 

源文件

// Create an instance of touch feedback
void CImageConverterContainer::ConstructL(const TRect& /*aRect*/)
    {
    ...
    iTouchFeedBack = MTouchFeedback::Instance();
    iTouchFeedBack->SetFeedbackEnabledForThisApp(ETrue);
    ...
    }
 
// Give some vibra to the user when a pointer down event occurs
void CImageConverterContainer::HandlePointerEventL(const TPointerEvent& aPointerEvent)
    {
    ...
    if (aPointerEvent.iType == TPointerEvent::EButton1Down)
        {
        // Give feedback to user (vibration)
        iTouchFeedBack->InstantFeedback(ETouchFeedbackBasic);
        }
    ...
    }

MTouchFeedback::InstantFeedback()的参数

*  ETouchFeedbackNone      - Use for disabling feedback for some areas of the
 *                            window when using area registry.
 *
 *  ETouchFeedbackBasic     - Use as default feedback for pen down events.
 *                            For example, pressing a button or tab.
 *
 *  ETouchFeedbackSensitive - Sensitive feedback situations
 *                            where the triggering action is not very 
 *                            important (e.g. change focus in list), or when
 *                            there can be a large amount of feedback in
 *                            a short time (e.g. text selection which gives
 *                            feedback on every new selected character).
 *                            Also used for scrolling and dragging.

 

后记

当使用触摸笔或手指划过按下屏幕时即可得到震动反馈。