Month November 2016

development, ios

Isn’t LeftBarButtonItem showing on navigation bar?

If you manually create a parent and child relationship between two view controllers, the child view controller might not have a navigation bar in this case. So you might be wondered why the navigation item of the child view controller…

wpvc
November 17, 2016

development, ios

Wait unitil a loop with asynchronous tasks finishes executing

A completion Handler in iOS takes a thread to asynchronously get it done. So it means that we can’t know an exact point which the tasks finish. For example, if we use a for loop to execute several tasks in…

wpvc
November 17, 2016