iphone textfield focus to send field

Question

hello all i have my four textfield for entering password If my password is "1 2 3 4", is there a way to automatically jump to the second box as soon as I enter "1" and so on and so forth?

Answer 1

use a UITextViewDelegate to detect the input and then call becomeFirstResponder on the next text field.

Answer 2

you need to make your class conform to UITesxtFieldDelegate and then use delegate method

- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string {

    if(texField == textfield1)
    {
        if([textfield1.text isEqualToString: @"1"])
        {
             [textfield1 resignFirstResponder];
             [textfield2 becomeFirstResponder];
        }      
    }
    else if(texField == textfield2) 
    ...... // write similar code
}

Text field calls this method whenever user enters some text or delete text from textfield. Also you need to set in your viewdidload method textfield1.delegate=self; for each textfield you need to call this method. For further details read doc for UITextFieldDelegate.