我正在尝试在我的iPhone应用程序中获取呼叫事件。为此,我试图注册到核心电话通知,但我得到以下错误。我正在iPhone 3GS上测试这个。 "CTTelephonyCenterGetDefault()", referenced from:ld: symbol(s) not found for arch
Domain=NSCocoaErrorDomain Code=4099 "The connection to service on pid 0 named com.apple.commcenter.coretelephony.xpcUserInfo={NSDebugDescription=The connection to service on pid 0 named com.apple.commcenter.coretelephony.xpcUserInfo={NSDebugDescription=The connection to servic