Question about isFirstResponder

[ibeleliev]

I found recently this library and started using it, but i came across something that i can't figure out how to deal with.
In my code i have specific closures that i want to run when the focus is not on the WSTagsField instance. For this purpose i set the 'textDelegate' to my controller and im running the closures inside textFieldDidEndEditing. It was working fine as expected until i tried to use the backspace key in the keyboard that shows when a view becomes the first responder. I understand that textFieldDidEndEditing wouldn't be the place for my closures to be in because the instance is still the firstResponder at this point just not the textField inside the instance.
I tried looking at the WSTagsField.isFirstResponder inside textFieldDidEndEditing but did not got what i was expecting.
So my question is: Is there a better place or some event like the ones "onDidAddTag,.. etc" that i could use to monitor when the WSTagsField is indeed resigning the first responder ?

[ricardopereira]

@ibeleliev I'm not sure if I quite understood your question. What are you trying to achieve? You only what assign events when the field is the first responder?

[ibeleliev]

Well I need a way to do something when the WSTagsField instance is not a firstResponder anymore. Like for example in my case after both the textField and the WSTagView's instances are not first responders.
I see that after the textField resignsFirstResponder ( when using the delete/backspace key on the keyboard ) the WSTagView before the typing indicator is becoming the firstResponder, and what i want is to know when every component of the library is not the firstResponder anymore.

PS. I don't know if i'm explaining myself well :)

[ibeleliev]

A workaround that i use now is to fire a timer when textFieldDidEndEditing is called and check in the timer if WSTagsField.isFirstResponder is false. If it is false I execute my closures.
Sorry for the english it is not my native, and the explanations :)