¡@
2014/10/15 ¤U¤È 10:14:11
iphone Programming Glossary: shouldchangecharactersinrangeFiltering characters entered into a UITextField http://stackoverflow.com/questions/1013647/filtering-characters-entered-into-a-uitextfield This assumption may be incorrect. iphone objective c uitextfield share improve this question Look at textField shouldChangeCharactersInRange This method is called by the UITextFieldDelegate whenever new characters are typed or existing characters are deleted from..
http://stackoverflow.com/questions/1246439/uitextfield-for-phone-number digit phone numbers. And currently it auto formats it like xxx xxx xxxx.. tweak to your hearts delight. First in your shouldChangeCharactersInRange you want to gather the whole string for the phone text field and pass it to the validation formatting function. BOOL textField.. for the phone text field and pass it to the validation formatting function. BOOL textField UITextField textField shouldChangeCharactersInRange NSRange range replacementString NSString string NSString totalString NSString stringWithFormat @ @ @ textField.text string..
Drop Shadow on UITextField text http://stackoverflow.com/questions/1274168/drop-shadow-on-uitextfield-text at a very small offset maybe by 0.2 0.8 . You can listen to every text change key by key by implementing the textField shouldChangeCharactersInRange replacementString method in the UITextFieldDelegate protocol. Using that you can update the lower text simultaneously. You..
How to pull up a UIKeyboard without a UITextField or UITextView? http://stackoverflow.com/questions/1376120/how-to-pull-up-a-uikeyboard-without-a-uitextfield-or-uitextview
How can I get a textDidChange (like for a UISearchBar) method for a UITextField? http://stackoverflow.com/questions/1919413/how-can-i-get-a-textdidchange-like-for-a-uisearchbar-method-for-a-uitextfield
Re-Apply currency formatting to a UITextField on a change event http://stackoverflow.com/questions/2388448/re-apply-currency-formatting-to-a-uitextfield-on-a-change-event 6 key then the value should change to 123 456 . Which callback is the correct one to do this in should I use textField shouldChangeCharactersInRange replacementString or a custom target action and how do I use the NSNumberFormatter to parse and re apply formatting to the.. animated force update for text field so the initial '0' will be formatted as currency ... self textField _textField shouldChangeCharactersInRange NSMakeRange 0 0 replacementString @ 0 void viewDidUnload self.textField nil super viewDidUnload This is the code in the.. void viewDidUnload self.textField nil super viewDidUnload This is the code in the UITextFieldDelegate method textField shouldChangeCharactersInRange replacementString BOOL textField UITextField textField shouldChangeCharactersInRange NSRange range replacementString NSString..
Realtime formatting with NSNumberFormatter in a UITextfield http://stackoverflow.com/questions/2412491/realtime-formatting-with-nsnumberformatter-in-a-uitextfield This delegate is called everytime a character is inserted in an UITextfield. BOOL textField UITextField textField shouldChangeCharactersInRange NSRange range replacementString NSString string if textField tag amountTag NSString amount string How do I append the already.. nonatomic retain NSMutableString storedValue Synthesize it. Then do this... BOOL textField UITextField textField shouldChangeCharactersInRange NSRange range replacementString NSString string if textField tag amountTag storedValue appendString string NSString newAmount..
iPhone: Disable the “double-tap spacebar for .” shortcut? http://stackoverflow.com/questions/2576561/iphone-disable-the-double-tap-spacebar-for-shortcut cocoa touch share improve this question Put this in your delegate class BOOL textField UITextField textField shouldChangeCharactersInRange NSRange range replacementString NSString string Check for double space return range.location 0 string length 0 NSCharacterSet..
Set the maximum character length of a UITextField http://stackoverflow.com/questions/433337/set-the-maximum-character-length-of-a-uitextfield setting the text field's delegate and implementing the following delegate method BOOL textField UITextField textField shouldChangeCharactersInRange NSRange range replacementString NSString string NSUInteger newLength textField.text length string length range.length return..
Recreate recipient bubble behaviour in Mail.app / Three20 http://stackoverflow.com/questions/5247072/recreate-recipient-bubble-behaviour-in-mail-app-three20 text see this StackOverflow question as you edit it. You would just need to write a handler for the delegate method shouldChangeCharactersInRange to handle deleting the added address and the bubble image if a bubble is the item the delete action is targeting. share..
Creating a combo box for the iPhone http://stackoverflow.com/questions/533231/creating-a-combo-box-for-the-iphone delegate of the both controls plus the data source of the table. Implement the UITextField delegate method textField shouldChangeCharactersInRange replacementString in your controller. This intercepts the changes as they are being typed in your text field. In this method..
http://stackoverflow.com/questions/7010547/uitextfield-text-change-event text change event How can I detect any text changes in a textField The delegate method shouldChangeCharactersInRange works for something but it did not fulfill my need exactly. Since until it returns YES the textField texts are not available.. has typed. Is their any way to get something like textChanged Java event handler. BOOL textField UITextField textField shouldChangeCharactersInRange NSRange range replacementString NSString string if textField.tag kTextFieldTagSubtotal textField.tag kTextFieldTagSubtotalDecimal..
allow only alphanumeric characters for a UITextField http://stackoverflow.com/questions/7541803/allow-only-alphanumeric-characters-for-a-uitextfield in an iphone UITextField iphone share improve this question Use the UITextFieldDelegate method textField shouldChangeCharactersInRange replacementString with an NSCharacterSet containing the inverse of the characters you want to allow. For example in init.. blockedCharacters NSCharacterSet alphanumericCharacterSet invertedSet retain BOOL textField UITextField field shouldChangeCharactersInRange NSRange range replacementString NSString characters return characters rangeOfCharacterFromSet blockedCharacters .location..
|