How can I detect DND mode within an app?

Question

I\'m building a medical diagnostic app. Interruptions while a patient (or doctor) is in the midst of using it would disrupt the purpose of the app and waste a lot of time. <

Answer 1

I found a way to know if DND is on, but it may only be used in certain circumstance... The CallKit will return particular error code when DND is on, for example:

CXCallUpdate *update = [[CXCallUpdate alloc] init];
update.remoteHandle = [[CXHandle alloc] initWithType:CXHandleTypeGeneric value:handle];
[(CXProvider *)self.provider reportNewIncomingCallWithUUID:uuid
                                      update:update
                                  completion:^(NSError *error) {
                                      if (error) {
                                          NSLog(@"error when reporting imconing: %@", [error localizedDescription]);
                                          //The operation couldn’t be completed. (com.apple.CallKit.error.incomingcall error 3.)
                                          if ([error code] == CXErrorCodeIncomingCallErrorFilteredByDoNotDisturb) {
                                              NSLog(@"Disturb mode is on");
                                          }
                                      }
                                  }];