C++Builder 实现监听手机通话状态

⒈头文件：

 

  #include <FMX.Platform.hpp>

  #include <FMX.PhoneDialer.hpp>

  // 本教程由 C++Builder 移动开发研究 (92227302) QQ群原创并群内首发，转载请注明出处，谢谢合作！

 

⒉私有变量：

 

  _di_IFMXPhoneDialerService phoneDialerService;

  bool serviceSupported;

 

⒊代码：

 

  void __fastcall TForm1::MyOnCallStateChanged(const UnicodeString aCallID, const TCallState aCallState) {

     switch (aCallState) {

      case TCallState::None:

            Label1->Text = L"No calls电话处于空闲状态，正等待接入";

                break;

      case TCallState::Connected:

            Label1->Text = L"Connected有电话打入，处于连接状态";

            break;

       case TCallState::Incoming:

            Label1->Text = L"Incoming call来电";

            break;

         case TCallState::Dialing:

            Label1->Text = L"Dialing电话在拨号状态";

            break;

      case TCallState::Disconnected:

            Label1->Text = L"Disconnected断开呼叫";

            break;

     }

  }

void __fastcall TForm1::FormCreate(TObject *Sender)

{

      serviceSupported = (TPlatformServices::Current->SupportsPlatformService(__uuidof(IFMXPhoneDialerService)) &&

      (phoneDialerService = TPlatformServices::Current->GetPlatformService(__uuidof(IFMXPhoneDialerService))));

      if (serviceSupported) {

         phoneDialerService->OnCallStateChanged = MyOnCallStateChanged;

      }

 

}