ios – 未调用HMAccessoryDe​​legate方法

for (HMCharacteristic *thisCharacteristic in characteristicsArray) {
    if ([thisCharacteristic.properties containsObject:HMCharacteristicPropertySupportsEventNotification]) {
        [thisCharacteristic enableNotification:TRUE completionHandler:^(NSError *error) {
            if (error) {
                NSLog(@"Error while enabling notification");
            }
            else    {
                NSLog(@"Notification enabled");
            }
        }];
    }

同时在viewWillDisappear中禁用通知