献上代码C++代码，仅供参考。若使用Delphi，请参考文献，http://blogs.embarcadero.com/davidi/2013/12/02/43032/
一定记得要安装FireMonkey哦。否则没有Fmx的库文件在里面。
//---------------------------------------------------------------------------#include <vcl.h>
#pragma hdrstop
#include "Unit1.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
TSensorArray sa;
TCustomLightSensor *myLightSensor;//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner): TForm(Owner)
{
}
//---------------------------------------------------------------------------
void __fastcall TForm1::FormCreate(TObject *Sender)
{TSensorManager::Current->Activate();int count;int i;count = TSensorManager::Current->Count;Memo1->Clear();for (i=0; i <count; i++) {Memo1->Lines->Add(TSensorManager::Current->Sensors[i]->Name);}sa = TSensorManager::Current->GetSensorsByCategory(TSensorCategory::Light);if (sa.Length!=0) {myLightSensor = static_cast<TCustomLightSensor*>(sa[0]);Label1->Caption = FloatToStr(myLightSensor->Lux);}
// Label1->Caption = ls->Lux;}
//---------------------------------------------------------------------------
void __fastcall TForm1::Timer1Timer(TObject *Sender)
{if (sa.Length !=0){Label1->Caption = FloatToStr(myLightSensor->Lux);}
}
//---------------------------------------------------------------------------
头文件
//---------------------------------------------------------------------------#ifndef Unit1H
#define Unit1H
//---------------------------------------------------------------------------
#include <System.Classes.hpp>
#include <Vcl.Controls.hpp>
#include <Vcl.StdCtrls.hpp>
#include <Vcl.Forms.hpp>
#include <Vcl.ExtCtrls.hpp>
#include <Fmx.Sensors.hpp>//---------------------------------------------------------------------------
class TForm1 : public TForm
{
__published: // IDE-managed ComponentsTMemo *Memo1;TLabel *Label1;Vcl::Extctrls::TTimer *Timer1;void __fastcall FormCreate(TObject *Sender);void __fastcall Timer1Timer(TObject *Sender);
private: // User declarations
public: // User declarations__fastcall TForm1(TComponent* Owner);
};
//---------------------------------------------------------------------------
extern PACKAGE TForm1 *Form1;
//---------------------------------------------------------------------------
#endif