详谈鸿蒙系统中的Sensor_lite组件

/base/sensors/sensor_lite
├── frameworks      # 框架代码
│   ├── include     # 头文件目录
│   └── src         # 源代码目录
├── interfaces      # 接口目录
│   └── kits        # Native接口目录
├── services        # 服务代码目录
│   ├── include     # 头文件目录
│   └── src         # 源代码目录
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#include "sensor_agent.h"
#include "sensor_agent_type.h"
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void SensorDataCallbackImpl(SensorEvent *event)
{
    if(event == NULL){
        return;
    }
    float *sensorData=(float *)event->data;
}
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SensorInfo *sensorInfo = (SensorInfo *)NULL;
int32_t count = 0;
int32_t ret = GetAllSensors(&sensorInfo, &count);
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SensorUser sensorUser;
sensorUser.callback = SensorDataCallbackImpl; //成员变量callback指向创建的回调方法
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int32_t ret = ActivateSensor(SENSOR_TYPE_ID_ACCELEROMETER, &sensorUser);
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int32_t ret = SubscribeSensor(SENSOR_TYPE_ID_ACCELEROMETER, &sensorUser);
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int32_t ret = UnsubscribeSensor(SENSOR_TYPE_ID_ACCELEROMETER, &sensorUser);
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int32_t ret = DeactivateSensor(SENSOR_TYPE_ID_ACCELEROMETER, &sensorUser);
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