CODEWITHSUNDEEP
iosuitextfielduicontrol
Daniel T.
Daniel T.

Reputation: 33978

Distinguishing between EditingDidBegin because of user action vs programatic setting

When I set the text of a UITextField programmatically, the EditingChanged action is not sent to my view controller, the action is only sent when the user changes the text through the keyboard.

However, when I call becomeFirstResponder() on a text field, it does send the EditingDidBegin action. So I can't tell if editing began because the user tapped on the UITextField, or because I did it programmatically. Do you know how I can easily distinguish between the two?

I'm looking for a way to know when the user taps in a UITextField and only when the user taps on it, not when becomeFirstResponder is called on it. Do you know of one?

Upvotes: 0

Views: 160

Answers (1)

matt
matt

Reputation: 535890

when I call becomeFirstResponder()

The secret is that when you call becomeFirstResponder(), you call it. Your code is running. You are in control. You can do whatever you want.

So if you need your EditingChanged handler to know that you called becomeFirstResponder(), you simply have to make a notation of this fact beforehand. For example, you could have a Bool property justCalledBecomeFirstResponder which you set to true just before calling becomeFirstResponder(). Now your EditingChanged handler has only to examine (and possibly reset to false) this Bool property before proceeding.

Upvotes: 2

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