I have two views, one is a main view, and another is a container view. What I wish to do is send a variable to the child and for it to execute my function. How do I tell the child view these two things from the parent view?
A few problems I have had is, ViewDidLoad does not work in container view. and when I tried to segue the information it also said that a periotical programming or container has been implemented indicating to me that the container can not be segued.
What I am trying to do is have two tables, the first table has a list, and the second table changes depending what you select in the first table. So I decided to seperate the two tables using a container view which is working for the most part.
First of all, you should note that any containers you create will be available through the childViewControllers property on your main controller. This gives you a link between the main controller and the child controller.
Now what you are trying to do is to change something in the child's table if the parent's table changes. There are many ways to do that, but in this case there is a pretty simple technique: you always know when the parent's table cell selection changes, in didSelectRowAtIndexPath. So what you need to do is simply within didSelectRowAtIndexPath, when the row changes you call a method in the child controller that passes in whatever information about the currently selected row you want to use. That method will change the table and do whatever else you want to do within the child view, since it's part of the child controller.
Using delegates or KVO or any other technique is overkill and bound to make the code much less readable.