in iOS, is it possible to assign a string ID to UI objects and then retrieve them in the code by that ID?
I am looking for something similar to the Android's findViewById(id)
you can use viewWithTag
but tag is type of Int
:
let superView = UIView()
let subView = UIView()
subView.tag = 100
superView.addSubview(subView)
let v = superView.viewWithTag(100)
if use xib
or storyboard
you can bind id like this:
use runtime you can bind obj to obj ,but seems not you want :
objc_setAssociatedObject(superView, "key", subView, .OBJC_ASSOCIATION_RETAIN)
let v = objc_getAssociatedObject(superView, "key")
you can use an enum to get the view :
enum UIKey:String {
case AA = "aa"
func findView(byKey:String ,fromView:UIView) -> UIView {
let v :UIView!
switch self {
// get view from real tag value
case .AA: v = fromView.viewWithTag(1)
}
return v
}
}
then use :
let dict = ["aa":123]
dict.forEach { (key,value) in
let v = UIKey(rawValue: key)?.findView(key, fromView: self.view)
//set v with your value
}