How to detect when UITextField become empty
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by Jakub
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Published on 2010-05-08T17:35:16Z
Indexed on
2010/05/08
17:38 UTC
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iphone
|iphone-sdk
Hello,
I would like to perform a certain action when UITextField becomes empty (user deletes everything one sign after another or uses the clear option).
I thought about using two methods
- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string;
and
- (BOOL)textFieldShouldClear:(UITextField *)textField;
from
UITextFieldDelegate
I'm not sure how to detect the situation when the text field becomes empty? I tried with:
if ([textField.text length] == 0)
but it does't work as the fisrt of the above methods is called before the sign is deleted from the text field.
Any ideas?
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