Delegate methods: UITextFeild

Delegate -
Managing Editing
– textFieldShouldBeginEditing:
– textFieldDidBeginEditing:
– textFieldShouldEndEditing:
– textFieldDidEndEditing:

Editing the Text Field’s Text
– textField:shouldChangeCharactersInRange:replacementString:
– textFieldShouldClear:
– textFieldShouldReturn: