[Swift] Storyboard outlet and action
2024-08-23 22:41:23
To programmaictlly change the content of app, we need to contect storyboard to a view controller.
To do that, we need to create new file call it 'ProductViewController', subclass should UIViewController:
Delete some uncessary code, the remain code should looks like:
import UIKit
class ProductViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
}
}
Link view to controller:
Click the view panel, and on the right side give the Custom class name as 'ProductViewController':
Link ui elements to outlets:
Click 'ctrl' & drag the image point to the code:
Give the name and save.
We can use 'Image Literal' to auto select the image:
DO the same for the label, then the code looks like:
import UIKit
class ProductViewController: UIViewController {
@IBOutlet weak var productNameLabel: UILabel!
@IBOutlet weak var productViewImage: UIImageView!
override func viewDidLoad() {
super.viewDidLoad()
productNameLabel.text = "1937 Desk Phone";
productViewImage.image = #imageLiteral(resourceName: "phone-fullscreen3");
}
}
class CourseViewController : UIViewController {
@IBOutlet weak var courseNameLabel: UILabel!
@IBOutlet weak var courseImageView: UIImageView!
override func viewDidLoad() {
super.viewDidLoad()
var courseName = "App Evolution With Swift"
courseNameLabel.text = courseName
courseImageView.image = UIImage(named: "course-badge")
}
}
@IBAction func addProductAction(_ sender: UIButton) {
print("Button tapped")
}
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