I have VCs in an iOS app which have quite a lot of UI controls. I would now need to replace or "mock" some of these controls when in a specific state. In some cases this would be just disabling button actions, but in some cases the actions that happen need to be replaced with something completely different.
I don't really like the idea of having this sort of check littered all around the codebase.
if condition {
...Special/disabled functionality
} else {
...Normal functionality
}
In Android, I can just subclass each Fragment/Activity and build the functionality there, and then doing the if/else when inserting Fragments or launching activities.
But on iOS with Storyboards/IBActions and Segues, UIs and VCs are really tightly coupled. You either end up duplicating UI views or adding a lot of finicky code to already large VCs.
What would be the best way to handle this in iOS?
Sample code of what I want to avoid doing:
//Before:
class SomeViewController : UIViewController {
@IBAction onSomeButton() {
checkSomeState()
doANetworkRequest(() -> {
someCompletionHandler()
updatesTheUI()
}
updateTheUIWhileLoading()
}
@IBAction onSomeOtherButton() {
checkAnotherState()
updateUI()
}
}
//After:
class SomeViewController : UIViewController {
@IBAction onSomeButton() {
if specialState {
doSomethingSimpler()
} else {
checkSomeState()
doANetworkRequest(() -> {
someCompletionHandler()
updatesTheUI()
}
updateTheUIWhileLoading()
}
}
@IBAction onSomeOtherButton() {
if specialState {
return // Do nothing
} else {
checkAnotherState()
updateUI()
}
}
}