I have an app that has a text field on the lower half of the view. This means that when I go to type in the text field the keyboard covers the textfield. How would I go about moving the view upwards while typing so I can see what i’m typing and then moving it … Read more
How do you add an observer in Swift to the default notification center? I’m trying to port this line of code that sends a notification when the battery level changes. [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(batteryLevelChanged:) name:UIDeviceBatteryLevelDidChangeNotification object:nil]; 15 Answers 15
I am attempting to send and receive messages through NSNotificationCenter in Objective-C. However, I haven’t been able to find any examples on how to do this. How do you send and receive messages through NSNotificationCenter? 6 s 6 @implementation TestClass – (void) dealloc { // If you don’t remove yourself as an observer, the Notification … Read more
