UIAlertAction - Edit UIAlertAction after it was set - ios

Question

I have a class named ManagerClass.
Manager Class has a function showUIAlertController:
- (UIAlertController*)showUIAlertController:(NSString *)title message:(NSString *)message actions:(NSArray<UIAlertAction*>* )actions
This function should show alert controller with the parameters received.
So far so good...
Now i would like to take these actions and edit them somehow. Something like:
UIAlertAction *action = actions.firstObject;
UIAlertAction *actionCopyWithAdditionalAction = [UIAlertAction actionWithTitle:action.title style:action.style handler:^(UIAlertAction * _Nonnull action) {
[action "performTheAction"]; //perform the original action
[ManagerClass doSomething];
}];
"performTheAction" does not exist - it is just for you to understand what i am trying to achieve.
Does anyone has an idea how this task can be achieved ?
Did not find a way to do that while looking at Apple's UIAlertAction API
https://developer.apple.com/reference/uikit/uialertaction

Answer 1

Do you mean to perform a method provided by your code. Then use:
[self performSelector:#selector(aMethod:)];
or when sending an object with:
[self performSelector:#selector(aMethod:)
withObject:(id)object];
Note, the self here is referencing to the same class, it could be somewhere else as well.
Edit *
UIAlertController* alert = [UIAlertController alertControllerWithTitle:#"My Alert"
message:#"This is an alert."
preferredStyle:UIAlertControllerStyleAlert];
UIAlertAction* defaultAction = [UIAlertAction actionWithTitle:#"OK" style:UIAlertActionStyleDefault handler:^(UIAlertAction * action) {
NSLog(#"42.");
}];
[alert addAction:defaultAction];
[self presentViewController:alert animated:YES completion:nil];
The console logs out 42. Put instead every action do you need.

Answer 2

Why you want to call a second alert which only displays the first alert and execute some of your code? You can do that in the first alert, too.
//Create the UIAlertController
UIAlertController *theAlertController = [UIAlertController alertControllerWithTitle:#"Your Title" message:#"Your Message" preferredStyle:UIAlertControllerStyleAlert];
//Add an UIAlertAction which the user can click at
[theAlertController addAction:[UIAlertAction actionWithTitle:#"Ok" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
//Execute your own code
//[self myOwnCode];
//Close the AlertController after your code
[self dismissViewControllerAnimated:YES completion:nil];
}]];
dispatch_async(dispatch_get_main_queue(), ^{
[self presentViewController:theAlertController animated:YES completion:nil];
});
Hope i understand you right.

Answer 3

You could pass a alert action model instead of a UIAlertAction.
so your method would look something like this:
- (UIAlertController*)showUIAlertController:(NSString *)title message:(NSString *)message actions:(NSArray<MyActionModel*>* )actions
where MyActionModel is a class with 3 properties
#interface MyActionModel: NSObject {
#property NSString * title;
#property UIAlertActionStyle * style;
#property ((void)^(UIAlertAction *)) action;
}
Then you can create your UIAlertActions when you need them and also add in your manager callbacks.
P.S. Sorry if my Objective-C is not quite right, I'm a bit rusty.