[iOS]Touch ID 사용 가능한지 판단하는 함수.

LAContext *myContext = [[LAContext alloc] init]; NSError *authError = nil; NSString *myLocalizedReasonString = @"Authenticate using your finger"; //이 함수에서 사용 가능한지 판단. if ([myContext canEvaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics error:&authError]) { [myContext evaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics localizedReason:myLocalizedReasonString reply:^(BOOL success, NSError *error) { if (success) { NSLog(@"User is authenticated successfully"); } else { } }