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POAutomatically change UITextField when reach determine length
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copied!<p>Hi I have 3 <code>UITextFields</code> and I want to change automatically to the next <code>textfield</code> when the user enters 3 characters. I manage to limit the length of one of the <code>textfields</code> that has a normal keyboard input, for the other 2 that have a numeric keypad I could limit the length.</p> <p>Here is what I have for one of the <code>textfield</code> to limit the length:</p> <pre><code>-(BOOL) textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string </code></pre> <p>{</p> <pre><code>if (dia.text.length >= 2 && range.length == 0) { [self.mes becomeFirstResponder]; // esto activa el siguiente textfield return NO; } if(mes.text.length >= 3 && range.length == 0) { [self.anio becomeFirstResponder]; // esto activa el siguiente textfield return NO; } if (anio.text.length >= 4 && range.length == 0) { [self.hora becomeFirstResponder]; // esto activa el siguiente textfield return NO; } if (hora.text.length >= 2 && range.length == 0) { [self.minutos becomeFirstResponder]; // esto activa el siguiente textfield return NO; } return YES; </code></pre> <p>}</p> <p>EDIT: on viewDidLoad I have this 5 lines if I remove them the limit doesn't work on anyone but if I leave them I only can input text on just one text field:</p> <pre><code>self.dia.delegate = self; self.mes.delegate = self; self.anio.delegate = self; self.hora.delegate = self; self.minutos.delegate = self; </code></pre>

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