:cactus:

I know you didn't introduce this style bug... but can you remove all of the spaces before the argument values? i.e.
```objc
[notificationCenter addObserver:self selector:@selector(applicationDidEnterBackground:) name:UIApplicationDidEnterBackgroundNotification object:nil];
```

Thank you. So awesome that you are making Objective-C PR's, Mr. Java. :coffee: