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Aaron Watkins
10,902 PointsPassing data to a custom UIView
Hi all,
I have a UIContainerView that holds 3 subviews (in a scrollview swipe with a page control). Right now, I have each UIView subview created manually. However, with the complexity of one of the views, i thought it easiest to lay it out in a xib. with hardcoded inputs, I have the xib loading properly into my ContainerView. However, I now want to use data from a query located in my containerViewController to populate text for properties in my custom UIViews. When doing something similar for a custom TableViewCell you can access the properties as such:
let cell:MyCustomCell = tableView!.dequeueReusableCellWithIdentifier("Cell", forIndexPath: indexPath!) as MyCustomCell
You can then access the properties of "MyCustomCell". How would you do this for a UIView?
Thanks for your help.
2 Answers
Chris Shaw
26,676 PointsHi Aaron,
I think you mean UIViewController as views inherit data while the controller passes it along, to accomplish this all you need is a class level variable defined in your custom controller which you can assign data to that variable using the prepareForSegue function in the parent view controller.
override func prepareForSegue(segue: UIStoryboardSegue!, sender: AnyObject!) {
// "MyView" is the name of the segue between the view controllers
if (segue.identifier == "MyView") {
let view: CustomController = segue!.destinationViewController as CustomController
view.customVariable = "Something"
}
}
So as you can see once we've selected the view controller and down cast it to our controller CustomController as have access to any custom properties/methods within it.
Hope that helps.
Alberto Huerdo
2,650 PointsHow did you solve it?
Aaron Watkins
10,902 PointsAaron Watkins
10,902 PointsThanks Chris.
Yeah I can pass data through from one ViewController to another, but what I'm struggling to do (and I probably didn't word the question properly) is to somehow update the properties of a UIView (and associated xib) from a query I am running in a UIViewController.
So I have a ViewController which contains a ContainerView (HeaderView). HeaderView displays information about the user (name, member since, quote, etc) that I pull from a Parse.com query. Within HeaderView, I have 3 subviews that are all created and laid out manually. One of the subviews (subview2) needs to have a slightly more complex layout than the others, so I created a xib (and tied it's class to a UIView subclassed swift file called headersubview.swift) to lay it out. I can go into headersubview.swift and do something like:
self.hometownLabel.text = "Chicago"The problem I'm facing is figuring out how to update subview2 with information from a query on HeaderView. Because the information in the subview is unique to the user, it would need to use the data from the table to populate it.
Is this possible? Thanks so much for your help.