ยท 1 min learn
Learn to use string primarily based UIView identifiers as a substitute of tags. In case you are uninterested in tagging views, try these different options.
First strategy: accessibility to the rescue!
Lengthy story quick, I used to be fairly uninterested in tagging views with silly quantity values, so I regarded for a greater different resolution to repair my drawback. Because it turned out, there’s a property referred to as accessibilityIdentifier that may do the job.
extension UIView {
var id: String? {
get {
return self.accessibilityIdentifier
}
set {
self.accessibilityIdentifier = newValue
}
}
func view(withId id: String) -> UIView? {
if self.id == id {
return self
}
for view in self.subviews {
if let view = view.view(withId: id) {
return view
}
}
return nil
}
}
I made a easy extension across the UIView class, so now I can use a correct string worth to uniquely determine any view object within the view hierarchy. Itโs fairly a pleasant resolution, now I can identify my views in a very nice approach. As a free of charge storing the identify beneath the accessibilityIdentifier will profit your UI exams. ๐
Second strategy: utilizing enums
The principle concept is to have an Int primarily based enum for each view identifier, so mainly you should use the tag property to retailer the enumโs rawValue. Itโs nonetheless not so good because the one above, but it surelyโs far more protected than counting on pure integers. ๐ฌ
enum ViewIdentifier: Int {
case submitButton
}
extension UIView {
var identifier: ViewIdentifier? {
set {
if let worth = newValue {
self.tag = worth.rawValue
}
}
get {
return ViewIdentifier(rawValue: self.tag)
}
}
func view(withId id: ViewIdentifier) -> UIView? {
return self.viewWithTag(id.rawValue)
}
}
Actually I simply got here up with the second strategy proper after I copy & pasted the primary snippet to this text, however what the heck, possibly another person will prefer it. ๐
If in case you have a greater resolution for this drawback, be happy to share it with me.
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