[英]Swift: Programmatically changing my UISegmentedControl's Items
[英]Fill programmatically UISegmentedControl using swift
是否可以使用swift以编程方式填充UISegmentedControl
的值?
let segmentedControl = UISegmentedControl()
segmentedControl.insertSegment(withTitle: "Title", at: 0, animated: true)
segmentedControl.setTitle("Another Title", forSegmentAt: 0)
如果我没有误会,您的意思是您想要以编程方式将段添加到“UISegmentedControl”组件,而不使用Interface Builder。
对的,这是可能的:
// Assuming that it is an "IBOutlet", you can do this in your "ViewController":
class ViewController: UIViewController {
@IBOutlet weak var segmentedControl: UISegmentedControl!
override func viewDidLoad() {
super.viewDidLoad()
// remove all current segments to make sure it is empty:
segmentedControl.removeAllSegments()
// adding your segments, using the "for" loop is just for demonstration:
for index in 0...3 {
segmentedControl.insertSegmentWithTitle("Segment \(index + 1)", atIndex: index, animated: false)
}
// you can also remove a segment like this:
// this removes the second segment "Segment 2"
segmentedControl.removeSegmentAtIndex(1, animated: false)
}
// and this is how you can access the changing of its value (make sure that event is "Value Changed")
@IBAction func segmentControlValueChanged(sender: UISegmentedControl) {
print("index of selected segment is: \(sender.selectedSegmentIndex)")
}
}
我使用@ RyuX51的解决方案解决了我的问题,现在我的代码是:
class MyCustomViewController: UIViewController{
@IBOutlet weak var ServicesSC: UISegmentedControl!
override func viewDidLoad() {
super.viewDidLoad()
ServicesSC.removeAllSegments()
ServicesSC.insertSegment(withTitle: "Title", at: 0, animated: true)
ServicesSC.setTitle("Another Title", forSegmentAt: 0)
}
}
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