Symbian手机振动API

核心提示：1. 添加头文件，库文件#include // For CHWRMVibra, HWRMVibraClient.lib2. 声明并实例化用于控制振动的成员class CVibraControl;CVibraControl* iControl;在ConstructL()函数中实例化iControl = VibraFact

1. 添加头文件，库文件

#include // For CHWRMVibra, HWRMVibraClient.lib

2. 声明并实例化用于控制振动的成员

class CVibraControl;

CVibraControl* iControl;

在ConstructL()函数中实例化

iControl = VibraFactory::NewL();

3.实现振动函数

/**

* DoVibrateL.

* Called when you want to vibra device

* @param aDuration Duration of the vibration measured in milliseconds.

* A value of 0 specifies that the vibration should continue indefinitly

* and should be stopped with a call to StopVibra.

* @param aIntensity Intensity of the vibra in decimal is -100 to 100,

* which shows the percentage of the vibra motor full rotation speed.

* When intensity is negative, the vibra motor rotates in the negative direction.

* When intensity is positive, the vibra motor rotates in the positive direction.

* Value 0 stops the vibra.

*/

void CVibraTestAppUi::DoVibrateL( TInt aDuration , TInt aIntensity )

{

if ( CVibraControl::EVibraModeON == iControl->VibraSettings() ) // get vibration setting in the user profile

{

TRAPD(err,iControl->StartVibraL(aDuration, aIntensity));

}

}

需要说明的是StartVibraL函数是异步的，所以不能在调用振动后立即销毁CVibraControl对象，否则手机不会震动的。aDuration表示振动持续时间，以毫秒记(1000表示1S)，但由于系统对硬件的保护和电池的限制，一次振动最长持续10S;aIntensity为频率，就是电机的转速(范围为-100~+100)，负值表示反转，在真机上测试感觉不太明显，一般取30左右即可。

4.使用完毕需要释放CVibraControl对象。